Problems with GridBagLayout
Hello all,
I have to implement a JPanel with several input items and use the GridBagLayout manager. My problem is, that the size of some text items won't be set to the preferred size (they are only 1px width as long as I don't set the attribute "fill" to another value than "none").
The Grid looks like this:
c1 c2 c3 c4
r1 label1 textitem1 label2 textitem2
r2 label3 textarea1 textarea1 textarea1 -> span 3
r3 label4 textarea2 textarea2 textarea2 -> span 3
r4 label5 textitem3 -> span 1
All constraints for the used item are the same except gridwidth, gridx and gridy. I already tried to set the widthx property to several values but that didn't work either.
Has anybody any ideas?
Thanks for your efforts and best regards,
Jens
[url http://java.sun.com/docs/books/tutorial/uiswing/layout/visual.html]How to Use GridBagLayout
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
Don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the posted code retains its original formatting.
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Hello I am trying to display contact information in three serperate Jpanels on tabbbed panes.I would like to get help in configuring maybe just the pane of void showPane1().I need something like
Searchlb | Combodropname1
firstnamelb | firstnametxt | lastnamelb | lastnametxt
Addresslb addresslb.Horizontal-----------------------*-
citylb | citytxt | statelb | statetxt
postcodelb | postcodetxt | countrylb | countrytxt
emaillb | emailtxt | homephonelb | homephonetxt
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Other panes have buttons
Here`s the code it operates on login of MSAccess table called persons:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
import java.io.*;
import java.util.Date;
import java.text.NumberFormat;
public class Addressbook extends JFrame{
// Define constant variables
final static String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
final static String url = "jdbc:odbc:addBKTAFE";
final static String login = "LOG-IN";
final static String tab_login = "Log-in";
final static String tab1 = "INQUIRE Personnel Details";
final static String tab2 = "UPDATE/DELETE Personnel Details";
final static String tab3 = "INSERT Personnel Details";
final static String insert = "SAVE RECORD";
final static String update = "UPDATE RECORD";
final static String delete = "DELETE RECORD";
final static String inquire = "INQUIRE RECORD";
final static String clear = " CLEAR ";
final static String relogin = "Log-in failed! Please relog-in!";
final static String norecfound = "No Record Found!";
final static String recinserted = "Record Inserted!";
final static String recupdated = "Record Updated!";
final static String recdeleted = "Record Deleted!";
final static String numericerror = "Age should be numeric!";
final static String information = "INFORMATION";
final static String error = "ERROR";
final static String genexception = "GENERAL EXCEPTION";
final static String sqlexception = "SQL EXCEPTION";
final static String confdelete = "CONFIRM DELETE";
final static String slash = "/";
final static String table1 = "persons";
final static String table2 = "Addresses";
// Events events = new Events(this);
// Define variables for general use
String sql = ""; // Used to store sql statements
int pane_number = 0; // Used to indicate what screen needs to be processed
// like resetting input fields and comboboxes
boolean abort = false;// Used to indicate if error found to avoid further
// processing/validations
// Define container, panels and tabbedpane
Container cntr = getContentPane();
JTabbedPane tpane = new JTabbedPane();
JPanel cbpanel1 , cbpanel2 , cbpanel3,
panel1 , panel2 , panel3;
// Setup constraints and type of layout
GridBagConstraints constraints = new GridBagConstraints();
GridBagConstraints constraints1 = new GridBagConstraints();
GridBagConstraints constraints2 = new GridBagConstraints();
GridBagConstraints constraints3 = new GridBagConstraints();
GridBagLayout layout = new GridBagLayout ();
// Define fonts to be used
Font labelFont = new Font("Arial",Font.PLAIN,12);
Font buttonFont = new Font("Arial",Font.BOLD,13);
// Define labels
JLabel lbUser = new JLabel("Enter User ID: " );
JLabel lbPassword = new JLabel("Enter Password: ");
JLabel lbSelectName = new JLabel("Search Name: " );
JLabel lbFirstName = new JLabel("First Name: " );
JLabel lbLastName = new JLabel("Last Name: " );
JLabel lbAddress = new JLabel("Address: " );
JLabel lbCity = new JLabel("City" );
JLabel lbState = new JLabel("State: " );
JLabel lbPostcode = new JLabel("Postcode" );
JLabel lbCountry = new JLabel("Country" );
JLabel lbEmailAddress = new JLabel("Email Address: " );
JLabel lbHomeNumber = new JLabel("Home Phone No.: " );
JLabel lbFaxNumber = new JLabel("Fax No.: " );
// Define combo boxes in third screen (insert pane)
JComboBox cbName1 = new JComboBox();
JComboBox cbPersonId1 = new JComboBox();
// Define combo boxes in second (update/delete pane)
JComboBox cbName2 = new JComboBox();
JComboBox cbPersonId2 = new JComboBox();
// Define buttons, text fields and password field
JButton btLogin = new JButton (login );
JButton btInsert = new JButton (insert );
JButton btUpdate = new JButton (update );
JButton btDelete = new JButton (delete );
JButton btInquire = new JButton (inquire);
JButton btClear = new JButton (clear );
JPasswordField jpPassword = new JPasswordField(10 );
JTextField tfUser = new JTextField("",10 );
// Inquiry fields on first screen (inquiry pane)
JTextField tfFirstName1 = new JTextField("",30);
JTextField tfLastName1 = new JTextField("",30);
JTextField tfAddress1 = new JTextField("",30);
JTextField tfCity1 = new JTextField("",15);
JTextField tfState1 = new JTextField("",15);
JTextField tfPostcode1 = new JTextField("",30);
JTextField tfCountry1 = new JTextField("",15 );
JTextField tfEmailAddress1 = new JTextField("",30);
JTextField tfHomeNumber1 = new JTextField("",15);
JTextField tfFaxNumber1 = new JTextField("",15 );
// Input fields on second screen (update/delete pane)
JTextField tfFirstName2 = new JTextField("",30);
JTextField tfLastName2 = new JTextField("",30);
JTextField tfAddress2 = new JTextField("",30);
JTextField tfCity2 = new JTextField("",15);
JTextField tfState2 = new JTextField("",15);
JTextField tfPostcode2 = new JTextField("",30);
JTextField tfCountry2 = new JTextField("",15 );
JTextField tfEmailAddress2 = new JTextField("",30);
JTextField tfHomeNumber2 = new JTextField("",15);
JTextField tfFaxNumber2 = new JTextField("",15 );
// Input fields on third screen (insert pane)
JTextField tfFirstName3 = new JTextField("",30);
JTextField tfLastName3 = new JTextField("",30);
JTextField tfAddress3 = new JTextField("",30);
JTextField tfCity3 = new JTextField("",15);
JTextField tfState3 = new JTextField("",15);
JTextField tfPostcode3 = new JTextField("",30);
JTextField tfCountry3 = new JTextField("",15 );
JTextField tfEmailAddress3 = new JTextField("",30);
JTextField tfHomeNumber3 = new JTextField("",15);
JTextField tfFaxNumber3 = new JTextField("",15 );
//------------------------------------------------------------------------------>>>
//-----------------------Start Addressbook()------------------------------------>>>
Addressbook(){
// define listener after adding items to CB to avoid triggering it
// cbName1.addItemListener(new ItemListener());
// public void itemStateChanged(ItemEvent e){
//--------------------------END Addressbook constructor------------------------------------->>>
//------------------------------------------------------------------------------>>>
//------------------------------------------------------------------------------>>>
//--------------------Start setupLoginPanel()----------------------------------->>>
// Setup the login screen
public void setupLoginPanel(){
// set application title
setTitle("Address Book Application");
// center screen
setLocation((Toolkit.getDefaultToolkit().getScreenSize().width
- getWidth())/2,
(Toolkit.getDefaultToolkit().getScreenSize().height
- getHeight())/2);
panel1 = new JPanel();
// set screen border
panel1.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab_login, panel1);
// add panel to container
cntr.add(tpane);
// setup layout as GridBagLayout
constraints.insets = new Insets(2,2,2,2);
panel1.setLayout(layout);
// setup User ID label in display area
lbUser.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 0;
constraints.gridy = 0;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbUser, constraints);
panel1.add(lbUser);
// setup User ID input field in display area
tfUser.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 1;
constraints.gridy = 0;
constraints.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfUser, constraints);
panel1.add(tfUser);
// setup Password label in display area
lbPassword.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 0;
constraints.gridy = 1;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbPassword, constraints);
panel1.add(lbPassword);
// setup Password input field in display area
jpPassword.setEchoChar('*');
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 1;
constraints.gridy = 1;
layout.setConstraints(jpPassword, constraints);
panel1.add(jpPassword);
// setup Login button in display area
btLogin.setFont(buttonFont);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridy = 3;
constraints.gridx = 1;
layout.setConstraints(btLogin, constraints);
panel1.add(btLogin);
// setup login button listener
btLogin.addActionListener(new ButtonHandler());
// allow ALT L to press login button
btLogin.setMnemonic('l');
//--------------------End setupLoginPanel()------------------------------------->>>
//--------------------Start login()--------------------------------------------->>>
// Validate user input from the login screen based on information from login
// table (note: manually create/update your login from table LOGIN).
public void login(){
String user = tfUser.getText();
user = user.trim();
char[] pw = jpPassword.getPassword();
String password = new String(pw).trim();
sql = "SELECT * FROM persons WHERE username='"+
user+"' AND password='"+password+"'";
try{
// load MS Access driver
Class.forName(driver);
}catch(java.lang.ClassNotFoundException ex){
JOptionPane.showMessageDialog(null,ex.getMessage(), error ,
JOptionPane.PLAIN_MESSAGE);
try{
// setup connection to DBMS
Connection conn = DriverManager.getConnection(url);
// create statement
Statement stmt = conn.createStatement();
// execute sql statement
stmt.execute(sql);
ResultSet rs = stmt.getResultSet();
boolean recordfound = rs.next();
if (recordfound){
tpane.removeTabAt(0);
showPane1();
showPane2();
showPane3();
else{
// username/password invalid
JOptionPane.showMessageDialog(null,relogin, error,
JOptionPane.INFORMATION_MESSAGE);
//clear login and password fields
tfUser.setText ("");
jpPassword.setText("");
conn.close();
}catch(Exception ex){
JOptionPane.showMessageDialog(null,ex.getMessage(), genexception,
JOptionPane.INFORMATION_MESSAGE);
//--------------------End login()----------------------------------------------->>>
//--------------------Start showPane1()----------------------------------------->>>
// Setup screen 1(inquiry pane) including labels, input fields, comboboxes.
// Table PERSONS is read to list inquiry parameters.
void showPane1(){
panel1 = new JPanel();
cbpanel1 = new JPanel();
// set screen border
panel1.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab1, panel1);
// setup layout as GridBagLayout
constraints1.insets = new Insets(2,2,2,2);
panel1.setLayout (layout);
cbpanel1.setLayout (layout);
// setup Name combobox label
lbSelectName.setFont(labelFont);
constraints1.gridx = 0;
constraints1.gridy = 0;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbSelectName, constraints1);
panel1.add(lbSelectName);
// setup Name combobox as search key
cbName1.setFont(labelFont);
constraints1.ipady = 10;
constraints1.gridx = 1;
constraints1.gridy = 0;
constraints1.gridwidth = 3;
constraints1.anchor = GridBagConstraints.WEST;
constraints1.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(cbName1, constraints1);
panel1.add(cbName1);
// setup search combobox (Name and corresponding key)
cbName1.addItem ("Choose one:");
cbPersonId1.addItem("0");
// setup First Name label in display area
lbFirstName.setFont(labelFont);
constraints1.gridx = 0;
constraints1.gridy = 1;
constraints1.anchor = GridBagConstraints.WEST;
constraints1.fill = GridBagConstraints.NONE;
constraints1.gridwidth = 1;
layout.setConstraints(lbFirstName, constraints1);
panel1.add(lbFirstName);
// setup First Name input field in display area
tfFirstName1.setFont(labelFont);
tfFirstName1.setEditable(false);
constraints1.gridx = 1;
constraints1.gridy = 1;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFirstName1, constraints1);
panel1.add(tfFirstName1);
// setup Last Name label in display area
lbLastName.setFont(labelFont);
constraints1.gridx = 2;
constraints1.gridy = 1;
constraints1.anchor = GridBagConstraints.WEST;
constraints1.fill = GridBagConstraints.NONE;
layout.setConstraints(lbLastName, constraints1);
panel1.add(lbLastName);
// setup Last Name input field in display area
tfLastName1.setFont(labelFont);
tfLastName1.setEditable(false);
constraints1.gridx = 3;
constraints1.gridy = 1;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfLastName1, constraints1);
panel1.add(tfLastName1);
// setup Address label in display area
lbAddress.setFont(labelFont);
constraints1.gridx = 0;
constraints1.gridy = 2;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbAddress, constraints1);
panel1.add(lbAddress);
// setup Address input field in display area
tfAddress1.setFont(labelFont);
tfAddress1.setEditable(false);
constraints1.gridx = 1;
constraints1.gridy = 2;
constraints1.gridwidth = 3;
constraints1.anchor = GridBagConstraints.WEST;
constraints1.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfAddress1, constraints1);
panel1.add(tfAddress1);
// setup City label in display area
lbCity.setFont(labelFont);
constraints1.gridx = 0;
constraints1.gridy = 3;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbCity, constraints1);
panel1.add(lbCity);
// setup City input field in display area
tfCity1.setFont(labelFont);
tfCity1.setEditable(false);
constraints1.gridx = 1;
constraints1.gridy = 3;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfCity1, constraints1);
panel1.add(tfCity1);
// setup State label in display area
lbState.setFont(labelFont);
constraints1.gridx = 2;
constraints1.gridy = 3;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbState, constraints1);
panel1.add(lbState);
// setup State input field in display area
tfState1.setFont(labelFont);
tfState1.setEnabled(false);
constraints1.gridx = 3;
constraints1.gridy = 3;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfState1, constraints1);
panel1.add(tfState1);
// setup Postcode label in display area
lbPostcode.setFont(labelFont);
constraints1.gridx = 0;
constraints1.gridy = 4;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbPostcode, constraints1);
panel1.add(lbPostcode);
// setup Address input field in display area
tfPostcode1.setFont(labelFont);
tfPostcode1.setEditable(false);
constraints1.gridx = 1;
constraints1.gridy = 4;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfPostcode1, constraints1);
panel1.add(tfPostcode1);
// setup Country label in display area
lbCountry.setFont(labelFont);
constraints1.gridx = 2;
constraints1.gridy = 4;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbCountry, constraints1);
panel1.add(lbCountry);
// setup Country input field in display area
tfCountry1.setFont(labelFont);
tfCountry1.setEditable(false);
constraints1.gridx = 3;
constraints1.gridy = 4;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfCountry1, constraints1);
panel1.add(tfCountry1);
// setup Email Address label in display area
lbEmailAddress = new JLabel ("Email Address:");
lbEmailAddress.setFont(labelFont);
constraints1.gridx = 0;
constraints1.gridy = 5;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbEmailAddress, constraints1);
panel1.add(lbEmailAddress);
// setup Email Address input field in display area
tfEmailAddress1.setFont(labelFont);
constraints1.gridx = 1;
constraints1.gridy = 5;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfEmailAddress1, constraints1);
panel1.add(tfEmailAddress1);
// setup Home Phone Number label in display area
lbHomeNumber.setFont(labelFont);
constraints1.gridx = 2;
constraints1.gridy = 5;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbHomeNumber, constraints1);
panel1.add(lbHomeNumber);
// setup Home Phone Number input field in display area
tfHomeNumber1.setFont(labelFont);
tfHomeNumber1.setEditable(false);
constraints1.gridx = 3;
constraints1.gridy = 5;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfHomeNumber1, constraints1);
panel1.add(tfHomeNumber1);
// setup Fax Number label in display area
lbFaxNumber.setFont(labelFont);
constraints1.gridx = 0;
constraints1.gridy = 6;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbFaxNumber, constraints1);
panel1.add(lbFaxNumber);
// setup Fax Number input field in display area
tfFaxNumber1.setFont(labelFont);
tfFaxNumber1.setEditable(false);
constraints1.gridx = 1;
constraints1.gridy = 6;
constraints1.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFaxNumber1, constraints1);
panel1.add(tfFaxNumber1);
// indicate inquiry pane
pane_number = 1;
// read table get the list of names in CB search key
accessDBInit();
// define listener after adding items to CB to avoid triggering it
cbName1.addItemListener(new ComboBoxHandler());
//--------------------End showPane1()------------------------------------------->>>
//--------------------Start showPane2()----------------------------------------->>>
// Setup screen 2(update and delete pane) including labels, input fields,
// comboboxes, and buttons. Table PERSONS is read to list inquiry parameters.
void showPane2(){
panel2 = new JPanel();
cbpanel2 = new JPanel();
labelFont = new Font("Arial",Font.PLAIN,12);
buttonFont = new Font("Arial",Font.BOLD,12);
// set screen border
panel2.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab2, panel2);
// setup layout as GridBagLayout
constraints2.insets = new Insets(2,2,2,2);
panel2.setLayout (layout);
cbpanel2.setLayout (layout);
// setup Name combobox label
lbSelectName.setFont(labelFont);
constraints2.gridx = 0;
constraints2.gridy = 0;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbSelectName, constraints2);
panel1.add(lbSelectName);
// setup Name combobox as search key
cbName2.setFont(labelFont);
constraints2.ipady = 10;
constraints2.gridx = 1;
constraints2.gridy = 0;
constraints2.gridwidth = 3;
constraints2.anchor = GridBagConstraints.WEST;
constraints2.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(cbName1, constraints2);
panel1.add (cbName1);
// setup search combobox (Name and corresponding key)
cbName1.addItem ("Choose one:");
cbPersonId1.addItem("0");
// setup First Name label in display area
lbFirstName.setFont(labelFont);
constraints2.gridx = 0;
constraints2.gridy = 1;
constraints2.anchor = GridBagConstraints.WEST;
constraints2.fill = GridBagConstraints.NONE;
constraints2.gridwidth = 1;
layout.setConstraints(lbFirstName, constraints2);
panel1.add(lbFirstName);
// setup First Name input field in display area
tfFirstName2.setFont(labelFont);
tfFirstName2.setEditable(false);
constraints2.gridx = 1;
constraints2.gridy = 1;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFirstName2, constraints2);
panel1.add(tfFirstName2);
// setup Last Name label in display area
lbLastName.setFont(labelFont);
constraints2.gridx = 2;
constraints2.gridy = 1;
constraints2.anchor = GridBagConstraints.WEST;
constraints2.fill = GridBagConstraints.NONE;
layout.setConstraints(lbLastName, constraints2);
panel1.add(lbLastName);
// setup Last Name input field in display area
tfLastName2.setFont(labelFont);
tfLastName2.setEditable(false);
constraints2.gridx = 3;
constraints2.gridy = 1;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfLastName2, constraints2);
panel1.add(tfLastName2);
// setup Address label in display area
lbAddress.setFont(labelFont);
constraints2.gridx = 0;
constraints2.gridy = 2;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbAddress, constraints2);
panel1.add(lbAddress);
// setup Address input field in display area
tfAddress2.setFont(labelFont);
tfAddress2.setEditable(false);
constraints2.gridx = 1;
constraints2.gridy = 2;
constraints2.gridwidth = 3;
constraints2.anchor = GridBagConstraints.WEST;
constraints2.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfAddress2, constraints2);
panel1.add(tfAddress2);
// setup City label in display area
lbCity.setFont(labelFont);
constraints2.gridx = 0;
constraints2.gridy = 3;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbCity, constraints2);
panel1.add(lbCity);
// setup City input field in display area
tfCity2.setFont(labelFont);
tfCity2.setEditable(false);
constraints2.gridx = 1;
constraints2.gridy = 3;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfCity2, constraints2);
panel1.add(tfCity2);
// setup State label in display area
lbState.setFont(labelFont);
constraints2.gridx = 2;
constraints2.gridy = 3;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbState, constraints2);
panel1.add(lbState);
// setup State input field in display area
tfState2.setFont(labelFont);
tfState2.setEnabled(false);
constraints2.gridx = 3;
constraints2.gridy = 3;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfState2, constraints2);
panel1.add(tfState2);
// indicate inquiry pane
pane_number = 1;
// setup Address label in display area
lbPostcode.setFont(labelFont);
constraints2.gridx = 0;
constraints2.gridy = 4;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbPostcode, constraints2);
panel1.add(lbPostcode);
// setup Address input field in display area
tfPostcode2.setFont(labelFont);
tfPostcode2.setEditable(false);
constraints2.gridx = 1;
constraints2.gridy = 4;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfPostcode2, constraints2);
panel1.add(tfPostcode2);
// setup Country label in display area
lbCountry.setFont(labelFont);
constraints2.gridx = 2;
constraints2.gridy = 4;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbCountry, constraints2);
panel1.add(lbCountry);
// setup Country input field in display area
tfCountry2.setFont(labelFont);
tfCountry2.setEditable(false);
constraints2.gridx = 3;
constraints2.gridy = 4;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfCountry2, constraints2);
panel1.add(tfCountry2);
// setup Email Address label in display area
lbEmailAddress = new JLabel ("Email Address:");
lbEmailAddress.setFont(labelFont);
constraints2.gridx = 0;
constraints2.gridy = 5;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbEmailAddress, constraints2);
panel1.add(lbEmailAddress);
// setup Email Address input field in display area
tfEmailAddress2.setFont(labelFont);
constraints2.gridx = 1;
constraints2.gridy = 5;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfEmailAddress2, constraints2);
panel1.add(tfEmailAddress2);
// setup Home Phone Number label in display area
lbHomeNumber.setFont(labelFont);
constraints2.gridx = 2;
constraints2.gridy = 5;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbHomeNumber, constraints2);
panel1.add(lbHomeNumber);
// setup Home Phone Number input field in display area
tfHomeNumber2.setFont(labelFont);
tfHomeNumber2.setEditable(false);
constraints2.gridx = 3;
constraints2.gridy = 5;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfHomeNumber2, constraints2);
panel1.add(tfHomeNumber2);
// setup Fax Number label in display area
lbFaxNumber.setFont(labelFont);
constraints2.gridx = 0;
constraints2.gridy = 6;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbFaxNumber, constraints2);
panel1.add(lbFaxNumber);
// setup Fax Number input field in display area
tfFaxNumber2.setFont(labelFont);
tfFaxNumber2.setEditable(false);
constraints2.gridx = 1;
constraints2.gridy = 6;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFaxNumber2, constraints2);
panel1.add(tfFaxNumber2);
// setup UPDATE button in display area
btUpdate.setFont(buttonFont);
constraints2.gridx = 3;
constraints2.gridy = 7;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(btUpdate, constraints2);
panel2.add(btUpdate);
// setup DELETE button in display area
btDelete.setFont(buttonFont);
constraints2.gridx = 1;
constraints2.gridy = 7;
constraints2.anchor = GridBagConstraints.WEST;
layout.setConstraints(btDelete, constraints2);
panel2.add(btDelete);
btUpdate.addActionListener(new ButtonHandler());
btDelete.addActionListener(new ButtonHandler());
// allow ALT U to press update button
btUpdate.setMnemonic('u');
// allow ALT D to press delete button
btDelete.setMnemonic('d');
// read table get the list of names in combo box search key
accessDBInit();
// define listener after adding items to CB to avoid triggering it
cbName2.addItemListener(new ComboBoxHandler());
//--------------------End showPane2()------------------------------------------->>>
//--------------------Start showPane3()----------------------------------------->>>
// Setup screen 2(insert pane) including labels, input fields, comboboxes,
// and buttons.
void showPane3(){
panel3 = new JPanel();
// set screen border
panel3.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab3, panel3);
// setup layout as GridBagLayout
constraints3.insets = new Insets(2,2,2,2);
panel3.setLayout (layout);
// setup First Name label in display area
JLabel lbFirstName = new JLabel("First Name:");
lbFirstName.setFont(labelFont);
constraints3.gridx = 0;
constraints3.gridy = 0;
constraints3.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbFirstName, constraints3);
panel3.add(lbFirstName);
// setup First Name input field in display area
tfFirstName3.setFont(labelFont);
constraints3.ipady = 8; // adjust heigth of input field
constraints3.gridx = 1;
constraints3.gridy = 0;
constraints3.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFirstName3, constraints3);
panel3.add(tfFirstName3);
// setup Last Name label in display area
lbLastName = new JLabel("Last Name: ");
lbLastName.setFont(labelFont);
constraints3.gridx = 2;
constraints3.gridy = 0;
constraints3.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbLastName, constraints3);
panel3.add(lbLastName);
// setup Last Name input field in display area
tfLastName3.setFont(labelFont);
constraints3.gridx = 3;
constraints3.gridy = 0;
constraints3.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfLastName3, constraints3);
panel3.add(tfLastName3);
// setup Middle Name label in display area
lbAddress = new JLabel("Address: ");
lbAddress.setFont(labelFont);
constraints3.gridx = 0;
constraints3.gridy = 1;
constraints3.anchimport java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class andy extends JFrame {
// Define constant variables
final static String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
final static String url = "jdbc:odbc:addBKTAFE";
final static String login = "LOG-IN";
final static String tab_login = "Log-in";
final static String tab1 = "INQUIRE Personnel Details";
final static String tab2 = "UPDATE/DELETE Personnel Details";
final static String tab3 = "INSERT Personnel Details";
final static String tab4 = "PRINT";
final static String insert = "SAVE RECORD";
final static String update = "UPDATE RECORD";
final static String delete = "DELETE RECORD";
final static String inquire = "INQUIRE RECORD";
final static String clear = " CLEAR ";
final static String relogin = "Log-in failed! Please relog-in!";
final static String norecfound = "No Record Found!";
final static String recinserted = "Record Inserted!";
final static String recupdated = "Record Updated!";
final static String recdeleted = "Record Deleted!";
final static String numericerror = "Age should be numeric!";
final static String information = "INFORMATION";
final static String error = "ERROR";
final static String genexception = "GENERAL EXCEPTION";
final static String sqlexception = "SQL EXCEPTION";
final static String confdelete = "CONFIRM DELETE";
final static String slash = "/";
final static String table1 = "persons";
final static String table2 = "Addresses";
// Define container, panels and tabbedpane
Container cntr = getContentPane();
JTabbedPane tpane = new JTabbedPane();
JPanel cbpanel1 , cbpanel2 , cbpanel3,
panel1 , panel2 , panel3, panel4;
// Define fonts to be used
Font labelFont = new Font("Arial",Font.PLAIN,12);
Font buttonFont = new Font("Arial",Font.BOLD,13);
// Define labels
JLabel lbUser = new JLabel("Enter User ID: " );
JLabel lbPassword = new JLabel("Enter Password: ");
JLabel lbSelectName = new JLabel("Search Name: " );
JLabel lbFirstName = new JLabel("First Name: " );
JLabel lbLastName = new JLabel("Last Name: " );
JLabel lbAddress = new JLabel("Address: " );
JLabel lbCity = new JLabel("City: " );
JLabel lbState = new JLabel("State: " );
JLabel lbPostcode = new JLabel("Postcode: " );
JLabel lbCountry = new JLabel("Country: " );
JLabel lbEmailAddress = new JLabel("Email Address: " );
JLabel lbHomeNumber = new JLabel("Home Phone No.: " );
JLabel lbFaxNumber = new JLabel("Fax No.: " );
// Define combo boxes in third screen (insert pane)
JComboBox cbName1 = new JComboBox();
JComboBox cbName2 = new JComboBox();
JComboBox cbName3 = new JComboBox();
JComboBox cbPersonId1 = new JComboBox();
JComboBox cbPersonId2 = new JComboBox();
JComboBox cbPersonId3 = new JComboBox();
// Inquiry fields on first screen (inquiry pane)
JTextField tfFirstName1 = new JTextField("",30);
JTextField tfLastName1 = new JTextField("",30);
JTextField tfAddress1 = new JTextField("",30);
JTextField tfCity1 = new JTextField("",15);
JTextField tfState1 = new JTextField("",15);
JTextField tfPostcode1 = new JTextField("",30);
JTextField tfCountry1 = new JTextField("",15 );
JTextField tfEmailAddress1 = new JTextField("",30);
JTextField tfHomeNumber1 = new JTextField("",15);
JTextField tfFaxNumber1 = new JTextField("",15 );
// Input fields on second screen (update/delete pane)
JTextField tfFirstName2 = new JTextField("",30);
JTextField tfLastName2 = new JTextField("",30);
JTextField tfAddress2 = new JTextField("",30);
JTextField tfCity2 = new JTextField("",15);
JTextField tfState2 = new JTextField("",15);
JTextField tfPostcode2 = new JTextField("",30);
JTextField tfCountry2 = new JTextField("",15);
JTextField tfEmailAddress2 = new JTextField("",30);
JTextField tfHomeNumber2 = new JTextField("",15);
JTextField tfFaxNumber2 = new JTextField("",15);
// Input fields on third screen (inset details pane)
JTextField tfFirstName3 = new JTextField("",30);
JTextField tfLastName3 = new JTextField("",30);
JTextField tfAddress3 = new JTextField("",30);
JTextField tfCity3 = new JTextField("",15);
JTextField tfState3 = new JTextField("",15);
JTextField tfPostcode3 = new JTextField("",30);
JTextField tfCountry3 = new JTextField("",15);
JTextField tfEmailAddress3 = new JTextField("",30);
JTextField tfHomeNumber3 = new JTextField("",15);
JTextField tfFaxNumber3 = new JTextField("",15);
GridBagLayout layout = new GridBagLayout();
GridBagConstraints constraints = new GridBagConstraints();
public andy() {
super("Address Book Application");
showPane1();
showPane2();
showPane3();
showPane4();
cntr.add(tpane, "Center");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(900,385);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setLocation((screenSize.width - getWidth())/2,
(screenSize.height - getHeight())/2);
setVisible(true);
// Setup screen 1(inquiry pane) including labels, input fields, comboboxes.
// Table PERSONS is read to list inquiry parameters.
void showPane1() {
panel1 = new JPanel();
cbpanel1 = new JPanel();
// set screen border
panel1.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab1, panel1);
// setup layout as GridBagLayout
constraints.insets = new Insets(2,2,2,2);
panel1.setLayout (layout);
cbpanel1.setLayout (layout);
// setup Name combobox label
lbSelectName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
layout.setConstraints(lbSelectName, constraints);
panel1.add(lbSelectName);
// setup Name combobox as search key
cbName1.setFont(labelFont);
constraints.ipady = 10;
constraints.gridwidth = constraints.REMAINDER;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(cbName1, constraints);
panel1.add(cbName1);
// setup search combobox (Name and corresponding key)
cbName1.addItem ("Choose one:");
cbPersonId1.addItem("0");
// setup First Name label in display area
lbFirstName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbFirstName, constraints);
panel1.add(lbFirstName);
// setup First Name input field in display area
tfFirstName1.setFont(labelFont);
tfFirstName1.setEditable(false);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFirstName1, constraints);
panel1.add(tfFirstName1);
// setup Last Name label in display area
lbLastName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbLastName, constraints);
panel1.add(lbLastName);
// setup Last Name input field in display area
tfLastName1.setFont(labelFont);
tfLastName1.setEditable(false);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfLastName1, constraints);
panel1.add(tfLastName1);
// setup Address label in display area
lbAddress.setFont(labelFont);
constraints.gridwidth = 1;
constraints.anchor = GridBagConstraints.EAST;
layout.setConstraints(lbAddress, constraints);
panel1.add(lbAddress);
// setup Address input field in display area
tfAddress1.setFont(labelFont);
tfAddress1.setEditable(false);
constraints.gridwidth = constraints.REMAINDER;
constraints.anchor = GridBagConstraints.WEST;
constraints.weightx = 1.0;
constraints.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfAddress1, constraints);
panel1.add(tfAddress1);
// setup City label in display area
lbCity.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
constraints.fill = GridBagConstraints.NONE;
layout.setConstraints(lbCity, constraints);
panel1.add(lbCity);
// setup City input field in display area
tfCity1.setFont(labelFont);
tfCity1.setEditable(false);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfCity1, constraints);
panel1.add(tfCity1);
// setup State label in display area
lbState.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbState, constraints);
panel1.add(lbState);
// setup State input field in display area
tfState1.setFont(labelFont);
tfState1.setEnabled(false);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfState1, constraints);
panel1.add(tfState1);
// setup Postcode label in display area
lbPostcode.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbPostcode, constraints);
panel1.add(lbPostcode);
// setup Address input field in display area
tfPostcode1.setFont(labelFont);
tfPostcode1.setEditable(false);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfPostcode1, constraints);
panel1.add(tfPostcode1);
// setup Country label in display area
lbCountry.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbCountry, constraints);
panel1.add(lbCountry);
// setup Country input field in display area
tfCountry1.setFont(labelFont);
tfCountry1.setEditable(false);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfCountry1, constraints);
panel1.add(tfCountry1);
// setup Email Address label in display area
lbEmailAddress.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbEmailAddress, constraints);
panel1.add(lbEmailAddress);
// setup Email Address input field in display area
tfEmailAddress1.setFont(labelFont);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfEmailAddress1, constraints);
panel1.add(tfEmailAddress1);
// setup Home Phone Number label in display area
lbHomeNumber.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbHomeNumber, constraints);
panel1.add(lbHomeNumber);
// setup Home Phone Number input field in display area
tfHomeNumber1.setFont(labelFont);
tfHomeNumber1.setEditable(false);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfHomeNumber1, constraints);
panel1.add(tfHomeNumber1);
// setup Fax Number label in display area
lbFaxNumber.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbFaxNumber, constraints);
panel1.add(lbFaxNumber);
// setup Fax Number input field in display area
tfFaxNumber1.setFont(labelFont);
tfFaxNumber1.setEditable(false);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFaxNumber1, constraints);
panel1.add(tfFaxNumber1);
// indicate inquiry pane
// pane_number = 1;
// read table get the list of names in CB search key
// accessDBInit();
// define listener after adding items to CB to avoid triggering it
// cbName1.addItemListener(new ComboBoxHandler());
//--------------------End showPane1()------------------------------------------->>>
//--------------------Start showPane2()----------------------------------------->>>
void showPane2() {
panel2 = new JPanel();
cbpanel2 = new JPanel();
// set screen border
panel2.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab2, panel2);
// setup layout as GridBagLayout
constraints.ipady = 0;
panel2.setLayout (layout);
cbpanel2.setLayout (layout);
// setup Name combobox label
lbSelectName = new JLabel("Search Name: ");
lbSelectName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
layout.setConstraints(lbSelectName, constraints);
panel2.add(lbSelectName);
// setup Name combobox as search key
cbName2.setFont(labelFont);
constraints.ipady = 10;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(cbName2, constraints);
panel2.add(cbName2);
// setup search combobox (Name and corresponding key)
cbName2.addItem ("Choose one:");
cbPersonId2.addItem("0");
// setup UPDATE button in display area
JButton btUpdate = new JButton("Update");
btUpdate.setFont(buttonFont);
// btUpdate.addActionListener(new ButtonHandler());
btUpdate.setMnemonic(KeyEvent.VK_U);
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(btUpdate, constraints);
panel2.add(btUpdate);
// setup DELETE button in display area
JButton btDelete = new JButton("Delete");
btDelete.setFont(buttonFont);
// btDelete.addActionListener(new ButtonHandler());
btDelete.setMnemonic(KeyEvent.VK_D);
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(btDelete, constraints);
panel2.add(btDelete);
// setup First Name label in display area
lbFirstName = new JLabel("First Name: ");
lbFirstName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbFirstName, constraints);
panel2.add(lbFirstName);
// setup First Name input field in display area
tfFirstName2.setFont(labelFont);
tfFirstName2.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFirstName2, constraints);
panel2.add(tfFirstName2);
// setup Last Name label in display area
lbLastName = new JLabel("Last Name: ");
lbLastName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbLastName, constraints);
panel2.add(lbLastName);
// setup Last Name input field in display area
tfLastName2.setFont(labelFont);
tfLastName2.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfLastName2, constraints);
panel2.add(tfLastName2);
// setup Address label in display area
lbAddress = new JLabel("Address: ");
lbAddress.setFont(labelFont);
constraints.gridwidth = 1;
constraints.anchor = GridBagConstraints.EAST;
layout.setConstraints(lbAddress, constraints);
panel2.add(lbAddress);
// setup Address input field in display area
tfAddress2.setFont(labelFont);
tfAddress2.setEditable(true);
constraints.gridwidth = constraints.REMAINDER;
constraints.anchor = GridBagConstraints.WEST;
constraints.weightx = 1.0;
constraints.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfAddress2, constraints);
panel2.add(tfAddress2);
// setup City label in display area
lbCity = new JLabel("City: ");
lbCity.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
constraints.fill = GridBagConstraints.NONE;
layout.setConstraints(lbCity, constraints);
panel2.add(lbCity);
// setup City input field in display area
tfCity2.setFont(labelFont);
tfCity2.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfCity2, constraints);
panel2.add(tfCity2);
// setup State label in display area
lbState = new JLabel("State: ");
lbState.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbState, constraints);
panel2.add(lbState);
// setup State input field in display area
tfState2.setFont(labelFont);
tfState2.setEnabled(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfState2, constraints);
panel2.add(tfState2);
// setup Postcode label in display area
lbPostcode = new JLabel("Postcode: ");
lbPostcode.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbPostcode, constraints);
panel2.add(lbPostcode);
// setup Address input field in display area
tfPostcode2.setFont(labelFont);
tfPostcode2.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfPostcode2, constraints);
panel2.add(tfPostcode2);
// setup Country label in display area
lbCountry = new JLabel("Country: ");
lbCountry.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbCountry, constraints);
panel2.add(lbCountry);
// setup Country input field in display area
tfCountry2.setFont(labelFont);
tfCountry2.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfCountry2, constraints);
panel2.add(tfCountry2);
// setup Email Address label in display area
lbEmailAddress = new JLabel ("Email Address: ");
lbEmailAddress.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbEmailAddress, constraints);
panel2.add(lbEmailAddress);
// setup Email Address input field in display area
tfEmailAddress2.setFont(labelFont);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfEmailAddress2, constraints);
panel2.add(tfEmailAddress2);
// setup Home Phone Number label in display area
lbHomeNumber = new JLabel("Home Phone No.: ");
lbHomeNumber.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbHomeNumber, constraints);
panel2.add(lbHomeNumber);
// setup Home Phone Number input field in display area
tfHomeNumber2.setFont(labelFont);
tfHomeNumber2.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfHomeNumber2, constraints);
panel2.add(tfHomeNumber2);
// setup Fax Number label in display area
lbFaxNumber = new JLabel("Fax No.: ");
lbFaxNumber.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbFaxNumber, constraints);
panel2.add(lbFaxNumber);
// setup Fax Number input field in display area
tfFaxNumber2.setFont(labelFont);
tfFaxNumber2.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFaxNumber2, constraints);
panel2.add(tfFaxNumber2);
//-----------------------------End showpane2()---------------------------------->>
//--------------------Start showPane3()----------------------------------------->>>
void showPane3() {
panel3 = new JPanel();
// cbpanel3 = new JPanel();
// set screen border
panel3.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab3, panel3);
// setup layout as GridBagLayout
panel3.setLayout(layout);
constraints.ipady = 0;
panel3.setLayout (layout);
// cbpanel3.setLayout (layout);
// setup Name combobox label
lbSelectName = new JLabel("Search Name: ");
lbSelectName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
layout.setConstraints(lbSelectName, constraints);
panel3.add(lbSelectName);
// setup Name combobox as search key
cbName3 = new JComboBox();
cbName3.setFont(labelFont);
constraints.ipady = 10;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(cbName3, constraints);
panel3.add(cbName3);
// setup search combobox (Name and corresponding key)
cbName3.addItem ("Choose one:");
cbPersonId3.addItem("0");
// setup INSERT button in display area
JButton btInsert = new JButton("Insert");
btInsert.setFont(buttonFont);
// btInsert.addActionListener(new ButtonListener());
btInsert.setMnemonic(KeyEvent.VK_S);
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(btInsert, constraints);
panel3.add(btInsert);
// setup CLEAR button in display area
JButton btClear = new JButton("Clear");
btClear.setFont(buttonFont);
// btClear.addActionListener(new ButtonListener());
btClear.setMnemonic(KeyEvent.VK_C);
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(btClear, constraints);
panel3.add(btClear);
// setup First Name label in display area
lbFirstName = new JLabel("First Name: ");
lbFirstName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbFirstName, constraints);
panel3.add(lbFirstName);
// setup First Name input field in display area
tfFirstName3.setFont(labelFont);
tfFirstName3.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFirstName3, constraints);
panel3.add(tfFirstName3);
// setup Last Name label in display area
lbLastName = new JLabel("Last Name: ");
lbLastName.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbLastName, constraints);
panel3.add(lbLastName);
// setup Last Name input field in display area
tfLastName3.setFont(labelFont);
tfLastName3.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfLastName3, constraints);
panel3.add(tfLastName3);
// setup Address label in display area
lbAddress = new JLabel("Address: ");
lbAddress.setFont(labelFont);
constraints.gridwidth = 1;
constraints.anchor = GridBagConstraints.EAST;
layout.setConstraints(lbAddress, constraints);
panel3.add(lbAddress);
// setup Address input field in display area
tfAddress3.setFont(labelFont);
tfAddress3.setEditable(true);
constraints.gridwidth = constraints.REMAINDER;
constraints.anchor = GridBagConstraints.WEST;
constraints.weightx = 1.0;
constraints.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfAddress3, constraints);
panel3.add(tfAddress3);
// setup City label in display area
lbCity = new JLabel("City: ");
lbCity.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
constraints.fill = GridBagConstraints.NONE;
layout.setConstraints(lbCity, constraints);
panel3.add(lbCity);
// setup City input field in display area
tfCity3.setFont(labelFont);
tfCity3.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfCity3, constraints);
panel3.add(tfCity3);
// setup State label in display area
lbState = new JLabel("State: ");
lbState.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbState, constraints);
panel3.add(lbState);
// setup State input field in display area
tfState3.setFont(labelFont);
tfState3.setEnabled(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfState3, constraints);
panel3.add(tfState3);
// setup Postcode label in display area
lbPostcode = new JLabel("Postcode: ");
lbPostcode.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbPostcode, constraints);
panel3.add(lbPostcode);
// setup Address input field in display area
tfPostcode3.setFont(labelFont);
tfPostcode3.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfPostcode3, constraints);
panel3.add(tfPostcode3);
// setup Country label in display area
lbCountry = new JLabel("Country: ");
lbCountry.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbCountry, constraints);
panel3.add(lbCountry);
// setup Country input field in display area
tfCountry3.setFont(labelFont);
tfCountry3.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfCountry3, constraints);
panel3.add(tfCountry3);
// setup Email Address label in display area
lbEmailAddress = new JLabel ("Email Address: ");
lbEmailAddress.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbEmailAddress, constraints);
panel3.add(lbEmailAddress);
// setup Email Address input field in display area
tfEmailAddress3.setFont(labelFont);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfEmailAddress3, constraints);
panel3.add(tfEmailAddress3);
// setup Home Phone Number label in display area
lbHomeNumber = new JLabel("Home Phone No.: ");
lbHomeNumber.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = constraints.RELATIVE;
layout.setConstraints(lbHomeNumber, constraints);
panel3.add(lbHomeNumber);
// setup Home Phone Number input field in display area
tfHomeNumber3.setFont(labelFont);
tfHomeNumber3.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(tfHomeNumber3, constraints);
panel3.add(tfHomeNumber3);
// setup Fax Number label in display area
lbFaxNumber = new JLabel("Fax No.: ");
lbFaxNumber.setFont(labelFont);
constraints.anchor = GridBagConstraints.EAST;
constraints.gridwidth = 1;
layout.setConstraints(lbFaxNumber, constraints);
panel3.add(lbFaxNumber);
// setup Fax Number input field in display area
tfFaxNumber3.setFont(labelFont);
tfFaxNumber3.setEditable(true);
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(tfFaxNumber3, constraints);
panel3.add(tfFaxNumber3);
//-----------------------------End showpane3()---------------------------------->>
//-----------------------------Start showPane4()-------------------------------->>
void showPane4() {
// qtm = new QueryTableModel();
// JTable table = new JTable(qtm);
// String query = "SELECT FirstName, LastName, HomePhone, " +
// "FROM Addresses ORDER By LastName";
// qtm.setQuery(query);
JPanel demoPanel = new JPanel();
demoPanel.setPreferredSize(new Dimension(400,500));
demoPanel.setBackground(Color.pink);
demoPanel.add(new JLabel("Demo Panel in place of table",
SwingConstants.CENTER));
JScrollPane scrollPane = new JScrollPane(demoPanel);
panel4 = new JPanel();
// pane_number = 4;
panel4.setLayout(layout);
constraints.ipady = 0;
// labelFont = new Font("Arial", Font.PLAIN, 12); defined above
buttonFont = new Font("Arial", Font.PLAIN, 13);
// set screen border
panel4.setBorder(
BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(), ""));
// add panel to tabbed pane
tpane.addTab(tab4, panel4);
JLabel lbPrint = new JLabel("Print");
lbPrint.setFont(labelFont);
constraints.anchor = constraints.EAST;
layout.setConstraints(lbPrint, constraints);
panel4.add(lbPrint);
JButton btPrint = new JButton("Print");
btPrint.setFont(buttonFont);
// btPrint.addActionListener(new ButtonListener());
btPrint.setMnemonic(KeyEvent.VK_P);
constraints.anchor = constraints.WEST;
constraints.gridwidth = constraints.REMAINDER;
layout.setConstraints(btPrint, constraints);
panel4.add(btPrint);
constraints.weighty = 1.0;
constraints.fill = constraints.BOTH;
constraints.anchor = constraints.CENTER;
layout.setConstraints(scrollPane, constraints);
panel4.add(scrollPane);
public static void main(String[] args) {
new andy();
} -
Problem with the GridBagLayout Manager
Hello i am new to Java Swing and i am facing a problem with the GridBagLayout layout manager . the code in question is attached. First compile and run the code. It will execute w/o probs . Then go to the "Console" tab. There the diff components (6 buttons and 1 text area) are haphazardly arranged where as all measures where taken to prevent it in the code. The GridBagLayout manager for this tab is not working properly please help.
The code in question:-
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class MainForm extends JFrame{
JTabbedPane jtp = new JTabbedPane();
Container generalContainer; // container for the general pane
Container consoleContainer; // container for the console pane
GridBagLayout consoleLayout = new GridBagLayout(); // GridBagLayout for the console
GridBagConstraints consoleConstraints;// GridBagConstraints for the console
public MainForm()
super("Welcome to Grey Griffin -- Network Simulator");
setSize(700,600);
setDefaultCloseOperation(EXIT_ON_CLOSE);
JPanel generalPane = new JPanel();
generalPane.setLayout(new BoxLayout(generalPane, BoxLayout.Y_AXIS));
JPanel consolePane = new JPanel();
consolePane.setLayout(new BoxLayout(consolePane, BoxLayout.Y_AXIS));
JPanel designPane = new JPanel();
designPane.setLayout(new BoxLayout(designPane, BoxLayout.Y_AXIS));
JPanel outputPane = new JPanel();
outputPane.setLayout(new BoxLayout(outputPane, BoxLayout.Y_AXIS));
//Setting up Layout for all the tabs
//for general tab
FlowLayout layout= new FlowLayout();
generalContainer = generalPane;
layout.setAlignment(FlowLayout.CENTER);
generalContainer.setLayout( layout );
//for console tab
consoleContainer = consolePane;
consoleConstraints = new GridBagConstraints();
// *******Finished********
//********** All buttons text areas are declared here**********
//*******for the general tab**********
JButton generalCreate = new JButton("Create a New Network");
JButton generalOpen = new JButton("Open an Existing Network");
JButton generalSave = new JButton("Save the Network");
JButton generalSaveAs = new JButton("Save As..........");
JButton generalExit = new JButton("Exit");
//******END******
//*******for the console tab
//text area
JTextArea consoleCode = new JTextArea();
consoleCode.setEditable(true);
consoleCode.setMaximumSize(new Dimension(700,400));
consoleCode.setAlignmentX(0.0f);
//text area complete
//*******for the Console tab**********
JButton consoleCompile = new JButton("Compile Code");
JButton consoleSimulate = new JButton("Simulate Code");
JButton consoleReset = new JButton("Reset");
JButton consoleOpen = new JButton("Open script files");
JButton consoleSave = new JButton("Save script files");
JButton consoleConvert = new JButton("Convert Script files to graphical form");
//***************END****************
//Adding buttons and text areas to there respective tabs
// for the general tab
generalContainer.add(generalCreate);
generalContainer.add(generalOpen);
generalContainer.add(generalSave);
generalContainer.add(generalSaveAs);
generalContainer.add(generalExit);
//****END****
// for the console tab
consoleConstraints.fill = GridBagConstraints.BOTH;
addComp(consoleOpen,0,0,1,1);
consoleConstraints.fill = GridBagConstraints.BOTH;
addComp(consoleSave,1,1,1,1);
consoleConstraints.fill = GridBagConstraints.BOTH;
addComp(consoleConvert,1,2,1,1);
consoleConstraints.fill = GridBagConstraints.BOTH;
addComp(consoleCode,1,0,3,1);
consoleConstraints.fill = GridBagConstraints.BOTH;
addComp(consoleCompile,2,0,1,1);
consoleConstraints.fill = GridBagConstraints.BOTH;
addComp(consoleSimulate,2,1,1,1);
consoleConstraints.fill = GridBagConstraints.BOTH;
addComp(consoleReset,2,2,1,1);
//****END****
// adding the tabs
jtp.addTab("General",null,generalPane,"Choose General Options");
jtp.addTab("Design",null,designPane,"Design your own network!!");
jtp.addTab("Console",null,consolePane,"Type commands in console for designing");
jtp.addTab("Output",null,outputPane,"View output");
getContentPane().add(jtp, BorderLayout.CENTER);
//****END****
//This method is used to ad the buttons in the GridBagLayout of the Console tab
private void addComp( Component c,int row,int column,int width,int height)
// set gridx and gridy
consoleConstraints.gridx=column;
consoleConstraints.gridy=row;
//set gridwidth and grid height
consoleConstraints.gridwidth=width;
consoleConstraints.gridheight=height;
//set constraints
consoleLayout.setConstraints(c,consoleConstraints);
consoleContainer.add(c);
class TabManager implements ItemListener
Component tab;
public TabManager(Component tabToManage)
tab = tabToManage;
public void itemStateChanged(ItemEvent ie)
int index=jtp.indexOfComponent(tab);
if (index!=-1)
jtp.setEnabledAt(index,ie.getStateChange()== ItemEvent.SELECTED);
MainForm.this.repaint();
public static void main(String args[])
MainForm form = new MainForm();
form.setVisible(true);
}Thanks for the suggestions. I did away with the GridBagLayout Altogether :-D
and put all the buttons in a seperate JPanel and added that JPanel into the Console tabs container which was using a BorderLayout this time. Take a look
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class MainForm extends JFrame{
JTabbedPane jtp = new JTabbedPane();
public MainForm()
super("Welcome to Grey Griffin -- Network Simulator");
setSize(800,600);
setDefaultCloseOperation(EXIT_ON_CLOSE);
JPanel generalPane = new JPanel();
generalPane.setLayout(new BoxLayout(generalPane, BoxLayout.Y_AXIS));
JPanel consolePane = new JPanel();
consolePane.setLayout(new BoxLayout(consolePane, BoxLayout.Y_AXIS));
JPanel designPane = new JPanel();
designPane.setLayout(new BoxLayout(designPane, BoxLayout.Y_AXIS));
JPanel outputPane = new JPanel();
outputPane.setLayout(new BoxLayout(outputPane, BoxLayout.Y_AXIS));
//Setting up Layout for all the tabs
//**for the general tab
Container generalContainer;
FlowLayout layoutGeneral= new FlowLayout();
generalContainer = generalPane;
layoutGeneral.setAlignment(FlowLayout.CENTER);
generalContainer.setLayout( layoutGeneral );
//**for the console tab
Container consoleContainer;
consoleContainer = consolePane;
consoleContainer.setLayout(new BorderLayout() );
//Creating buttonpanel for adding the buttons
JPanel buttonPanel1 = new JPanel();
buttonPanel1.setLayout(new GridLayout(1,3));
JPanel buttonPanel2 = new JPanel();
buttonPanel2.setLayout(new GridLayout(1,3));
// All buttons / text areas / images are declared here
//**Buttons for the general tab**//
JButton generalCreate = new JButton("Create a New Network");
JButton generalOpen = new JButton("Open an Existing Network");
JButton generalSave = new JButton("Save the Network");
JButton generalSaveAs = new JButton("Save As..........");
JButton generalExit = new JButton("Exit");
//declaring the buttons
JButton consoleCompile = new JButton("Compile");
JButton consoleRun = new JButton("Run");
JButton consoleReset = new JButton("Reset");
JButton consoleOpen = new JButton("Open script files");
JButton consoleSave = new JButton("Save script files");
JButton consoleConvert = new JButton("Convert Script files to graphical form");
//declares the textarea where the code is written
JTextArea consoleCode = new JTextArea();
consoleCode.setEditable(true);
consoleCode.setMaximumSize(new Dimension(500,600));
consoleCode.setAlignmentX(0.0f);
//Adding buttons and text areas to there respective tabs
//**Buttons and text pads for the general tab**
generalContainer.add(generalCreate);
generalContainer.add(generalOpen);
generalContainer.add(generalSave);
generalContainer.add(generalSaveAs);
generalContainer.add(generalExit);
//adding buttons to the button panel 1
buttonPanel1.add(consoleOpen);
buttonPanel1.add(consoleSave);
buttonPanel1.add(consoleConvert);
//adding buttons to the button panel2
buttonPanel2.add(consoleRun);
buttonPanel2.add(consoleReset);
buttonPanel2.add(consoleCompile);
//adding button panels and textarea
consoleContainer.add(buttonPanel1,BorderLayout.NORTH);
consoleContainer.add(consoleCode,BorderLayout.CENTER);
consoleContainer.add(new JScrollPane(consoleCode));
consoleContainer.add(buttonPanel2,BorderLayout.SOUTH);
//adding the tabs
jtp.addTab("General",null,generalPane,"Choose General Options");
jtp.addTab("Design",null,designPane,"Design your own network!!");
jtp.addTab("Console",null,consolePane,"Type commands in console for designing");
jtp.addTab("Output",null,outputPane,"View output");
getContentPane().add(jtp, BorderLayout.CENTER);
class TabManager implements ItemListener
Component tab;
public TabManager(Component tabToManage)
tab = tabToManage;
public void itemStateChanged(ItemEvent ie)
int index=jtp.indexOfComponent(tab);
if (index!=-1)
jtp.setEnabledAt(index,ie.getStateChange()== ItemEvent.SELECTED);
MainForm.this.repaint();
public static void main(String args[])
MainForm form = new MainForm();
form.setVisible(true);
} -
Problem with writing and reading using serialization
I am having a problem with writing and reading an object that has another object in it. The purpose of the class is to write a order that has multiple items in it. And there will be several orders. This is for an IB project, where one of the requirements is to utilize a hierarchical composite data structure. That is, it is "one that contains more than one element and at least one of the elements is a composite data structure. Examples are, an array or linked list of records, a record that has one field that is another record, or an array". The code is shown below:
The error produced is
java.lang.NullPointerException
at SamsonRubberIndustries.CustomerOrderDetails.createCustOrdDetailsScreen(CustomerOrderDetails.java:150)
at SamsonRubberIndustries.CustomerOrderDetails$1.run(CustomerOrderDetails.java:78)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
public class CustOrdObject implements Serializable {
public int CustID;
public int CustOrderID;
public Object OrderDate;
public InnerCustOrdObject[] innerCustOrdObj;
public float GrandTotal;
public int MaxItems;
public CustOrdObject() {}
public CustOrdObject(InnerCustOrdObject[] innerCustOrdObj,
int CustID, int CustOrderID, Object OrderDate,
float GrandTotal, int innerarrlength, int innerarrpos, int MaxItems) {
this.CustID = CustID;
this.CustOrderID = CustOrderID;
this.OrderDate = OrderDate;
this.GrandTotal = GrandTotal;
this.MaxItems = MaxItems;
this.innerCustOrdObj = new InnerCustOrdObject[MaxItems];
public InnerCustOrdObject[] getInnerCustOrdObj() {
return innerCustOrdObj;
public void setInnerCustOrdObj(InnerCustOrdObject[] innerCustOrdObj) {
this.innerCustOrdObj = innerCustOrdObj;
public int getCustID() {
return CustID;
public void setCustID(int custID) {
CustID = custID;
public int getCustOrderID() {
return CustOrderID;
public void setCustOrderID(int custOrderID) {
CustOrderID = custOrderID;
public Object getOrderDate() {
return OrderDate;
public void setOrderDate(Object orderDate) {
OrderDate = orderDate;
public void setGrandTotal(float grandTotal) {
GrandTotal = grandTotal;
public float getGrandTotal() {
return GrandTotal;
public int getMaxItems() {
return MaxItems;
public void setMaxItems(int maxItems) {
MaxItems = maxItems;
public class InnerCustOrdObject implements Serializable{
public int ItemNumber;
public float UnitPrice;
public int QuantityRequired;
public float TotalPrice;
public InnerCustOrdObject() {}
public InnerCustOrdObject(int ItemNumber, float
UnitPrice, int QuantityRequired, float TotalPrice){
this.ItemNumber = ItemNumber;
this.UnitPrice = UnitPrice;
this.QuantityRequired = QuantityRequired;
this.TotalPrice = TotalPrice;
public int getItemNumber() {
return ItemNumber;
public void setItemNumber(int itemNumber) {
ItemNumber = itemNumber;
public int getQuantityRequired() {
return QuantityRequired;
public void setQuantityRequired(int quantityRequired) {
QuantityRequired = quantityRequired;
public float getTotalPrice() {
return TotalPrice;
public void setTotalPrice(float totalPrice) {
TotalPrice = totalPrice;
public float getUnitPrice() {
return UnitPrice;
public void setUnitPrice(float unitPrice) {
UnitPrice = unitPrice;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.*;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
public class CustomerOrderDetails extends CommonFeatures{
//TODO
private static int MAX_ORDERS = 200;
private static int MAX_ORDERITEMS = 100;
private static int MaxRecord;
private static int CurrentRecord = 1;
private static int currentItem;
private static int MaxItems;
private static boolean FileExists, recFileExists;
private static CustOrdObject[] orderDetails = new CustOrdObject[MAX_ORDERS];
private static InnerCustOrdObject[] innerCustOrdObj = new InnerCustOrdObject[MAX_ORDERITEMS];
private static File OrderDetailsFile = new File("CustOrdDetails.dat");
private static File OrdRecordNumStore = new File("OrdRecordNumStore.txt");
private static PrintWriter writeFile;
private static BufferedReader readFile;
private static ObjectOutputStream objOut;
private static ObjectInputStream objIn;
//Set format for date
SimpleDateFormat simpleDF = new SimpleDateFormat("dd MM yyyy");
//--<BEGINNING>--Declaring Interface Variables------------------------------------------//
private JPanel innertoppanel, innercenterpanel, innerbottompanel, innerrightpanel, innerleftpanel;
private JLabel CustIDLbl, CustOrderIDLbl, OrderedDateLbl, GrandTotLbl, ItemNumberLbl,UnitPriceLbl, QuantityReqLbl, TotPriceLbl;
private JTextField CustIDTxt, CustOrderIDTxt, OrderedDateTxt, GrandTotTxt, ItemNumberTxt, UnitPriceTxt, QuantityReqTxt, TotPriceTxt;
private JButton addrecordbtn, savebtn, externalprevbtn, externalnextbtn, internalprevbtn, internalnextbtn, gotorecordbtn, additemreqbtn;
//--<END>--Declaring Interface Variables------------------------------------------------//
public static void main(String[] args) {
final CustomerOrderDetails COD = new CustomerOrderDetails();
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
COD.createCustOrdDetailsScreen();
} catch (Exception eb) {
eb.printStackTrace();
//--<BEGINNING>--Creating CustomerOrderDetails Screen---------------------------------------//
public JFrame createCustOrdDetailsScreen() {
createDefaultFrame();
mainframe.setSize(800,500);
createContainerPanel();
containerpanel.add(createCustOrdDetailsTitle(), BorderLayout.NORTH);
containerpanel.add(createCustOrdDetailsMainPanel(), BorderLayout.CENTER);
//containerpanel.add(createCustOrdDetailsLeftNavButtons(), BorderLayout.WEST);
//containerpanel.add(createCustOrdDetailsRightNavButtons(), BorderLayout.EAST);
containerpanel.add(createCustOrdDetailsButtons(), BorderLayout.SOUTH);
mainframe.setContentPane(containerpanel);
mainframe.setLocationRelativeTo(null);
mainframe.setVisible(true);
//--<BEGINNING>--Checks to see whether CRecordNumberStore file exists-------------------------------//
if (OrdRecordNumStore.exists() == true) {
recFileExists = true;
}else {
recFileExists = false;
if (recFileExists == true) {
MaxRecord = readRecordNumber();
CurrentRecord = MaxRecord;
//readOrder();
//readInnerOrderRecord(CurrentRecord);
System.out.println("Current Record " +CurrentRecord);
System.out.println("Max Record " +MaxRecord);
}else{
MaxRecord = 1;
writeRecordNumber(MaxRecord);
CustOrderIDTxt.setText(""+MaxRecord);
System.out.println("Current Record " +CurrentRecord);
System.out.println("Max Record " +MaxRecord);
//--<END>--Checks to see whether CRecordNumberStore file exists--------------------------------------//
if(readOrder() != null){
orderDetails = (CustOrdObject[]) readOrder();
innerCustOrdObj = orderDetails[CurrentRecord].getInnerCustOrdObj();
MaxItems = orderDetails[CurrentRecord].getMaxItems();
if(CurrentRecord > 1 && CurrentRecord < MaxRecord){
externalnextbtn.setEnabled(true);
externalprevbtn.setEnabled(true);
if(CurrentRecord >= MaxRecord){
externalnextbtn.setEnabled(false);
getFieldText(CurrentRecord-1);
}else{
orderDetails[CurrentRecord] = new CustOrdObject();
currentItem = 1;
return mainframe;
//--<END>--Creating CustomerOrderDetails Screen---------------------------------------------//
public JPanel createCustOrdDetailsTitle(){
createTitlePanel();
titlepanel.setBackground(TxtfontColor);
label.setText("- Customer Order Details -");
labelpanel.setBackground(TxtfontColor);
label.setForeground(Color.white);
createbuttonpanel();
buttonpanel.setBackground(TxtfontColor) ;
buttonpanel.add(createReturnToMainMenuButton());
titlepanel.add(labelpanel, BorderLayout.WEST);
titlepanel.add(buttonpanel, BorderLayout.EAST);
return titlepanel;
public JPanel createCustOrdDetailsMainPanel(){
createmainpanel();
mainpanel.setBackground(TxtfontColor);
mainpanel.setLayout(new BorderLayout());
mainpanel.setBorder(BorderFactory.createTitledBorder(""));
mainpanel.add(createInnerTopPanel(), BorderLayout.NORTH);
mainpanel.add(createInnerCenterPanel(), BorderLayout.CENTER);
mainpanel.add(createInnerBottomPanel(), BorderLayout.SOUTH);
mainpanel.add(createInnerRightPanel(), BorderLayout.EAST);
mainpanel.add(createInnerLeftPanel(), BorderLayout.WEST);
return mainpanel;
public JPanel createInnerTopPanel(){
innertoppanel = new JPanel(new GridBagLayout());
innertoppanel.setBackground(TxtfontColor);
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
//Setting Font Type and Size
Font font = new Font("Arial", Font.BOLD, 11);
CustIDLbl = new JLabel("Customer ID");
CustIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
CustIDLbl.setFont(font);
CustIDLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 1;
innertoppanel.add(CustIDLbl, GBC);
CustIDTxt = new JTextField(20);
CustIDTxt.setEditable(true);
GBC.gridx = 2;
GBC.gridy = 1;
innertoppanel.add(CustIDTxt, GBC);
GBC.gridx = 3;
GBC.gridy = 1;
innertoppanel.add(Box.createHorizontalStrut(220), GBC);
OrderedDateLbl = new JLabel("Order Date");
OrderedDateLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
OrderedDateLbl.setFont(font);
OrderedDateLbl.setForeground(LblfontColor);
GBC.gridx = 4;
GBC.gridy = 1;
innertoppanel.add(OrderedDateLbl, GBC);
//Get today's date
Date todaydate = new Date();
OrderedDateTxt = new JTextField(simpleDF.format(todaydate), 20);
OrderedDateTxt.setHorizontalAlignment(JTextField.CENTER);
OrderedDateTxt.setEditable(false);
GBC.gridx = 5;
GBC.gridy = 1;
innertoppanel.add(OrderedDateTxt, GBC);
CustOrderIDLbl = new JLabel("Customer Order ID");
CustOrderIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
CustOrderIDLbl.setFont(font);
CustOrderIDLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 2;
innertoppanel.add(CustOrderIDLbl, GBC);
CustOrderIDTxt = new JTextField(20);
CustOrderIDTxt.setEditable(false);
GBC.gridx = 2;
GBC.gridy = 2;
innertoppanel.add(CustOrderIDTxt, GBC);
return innertoppanel;
public JPanel createInnerCenterPanel(){
innercenterpanel = new JPanel(new GridBagLayout());
innercenterpanel.setBackground(TxtfontColor);
innercenterpanel.setBorder(BorderFactory.createLoweredBevelBorder());
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
//Setting Font Type and Size
Font font = new Font("Arial", Font.BOLD, 11);
ItemNumberLbl = new JLabel("Item Number");
ItemNumberLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
ItemNumberLbl.setFont(font);
ItemNumberLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 1;
innercenterpanel.add(ItemNumberLbl, GBC);
ItemNumberTxt = new JTextField(20);
GBC.gridx = 2;
GBC.gridy = 1;
innercenterpanel.add(ItemNumberTxt, GBC);
UnitPriceLbl = new JLabel("Unit Price");
UnitPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
UnitPriceLbl.setFont(font);
UnitPriceLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 2;
innercenterpanel.add(UnitPriceLbl, GBC);
UnitPriceTxt = new JTextField(20);
//UnitPriceTxt.setEditable(false);
GBC.gridx = 2;
GBC.gridy = 2;
innercenterpanel.add(UnitPriceTxt, GBC);
QuantityReqLbl = new JLabel("Quantity Required");
QuantityReqLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
QuantityReqLbl.setFont(font);
QuantityReqLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 3;
innercenterpanel.add(QuantityReqLbl, GBC);
QuantityReqTxt = new JTextField(20);
//QuantityReqTxt.setEditable(false);
GBC.gridx = 2;
GBC.gridy = 3;
innercenterpanel.add(QuantityReqTxt, GBC);
TotPriceLbl = new JLabel("Total Price");
TotPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
TotPriceLbl.setFont(font);
TotPriceLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 4;
innercenterpanel.add(TotPriceLbl, GBC);
TotPriceTxt = new JTextField(20);
//TotPriceTxt.setEditable(false);
GBC.gridx = 2;
GBC.gridy = 4;
innercenterpanel.add(TotPriceTxt, GBC);
return innercenterpanel;
public JPanel createInnerBottomPanel(){
innerbottompanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
innerbottompanel.setBackground(TxtfontColor);
//Setting Font Type and Size
Font font = new Font("Arial", Font.BOLD, 11);
GrandTotLbl = new JLabel("Grand Total");
GrandTotLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
GrandTotLbl.setFont(font);
GrandTotLbl.setForeground(LblfontColor);
innerbottompanel.add(GrandTotLbl);
innerbottompanel.add(Box.createHorizontalStrut(30));
GrandTotTxt = new JTextField(20);
innerbottompanel.add(GrandTotTxt);
return innerbottompanel;
public JPanel createInnerRightPanel(){
innerrightpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
innerrightpanel.setBackground(TxtfontColor);
innerrightpanel.setLayout(new BoxLayout(navrightpanel, BoxLayout.Y_AXIS));
innerrightpanel.setBorder(BorderFactory.createLoweredBevelBorder());
innerrightpanel.setLayout(new GridBagLayout());
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
internalnextbtn = new JButton(createNextButtonIcon());
GBC.gridx = 1;
GBC.gridy = 1;
internalnextbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
//getInnerFieldText(currentItem);
internalprevbtn.setEnabled(true);
if(currentItem < MaxItems){
++CurrentRecord;
//readOrder();
//readInnerOrderRecord(CurrentRecord);
setInnerFieldText(currentItem);
System.out.println(CurrentRecord);//Checking RECORD_NUM
if(currentItem == MaxItems){
internalnextbtn.setEnabled(false);
innerrightpanel.add(internalnextbtn, GBC);
return innerrightpanel;
public JPanel createInnerLeftPanel(){
innerleftpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
innerleftpanel.setBackground(TxtfontColor);
innerleftpanel.setBorder(BorderFactory.createLoweredBevelBorder());
innerleftpanel.setForeground(Color.BLACK);
innerleftpanel.setLayout(new GridBagLayout());
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
internalprevbtn = new JButton(createPreviousButtonIcon());
GBC.gridx = 1;
GBC.gridy = 1;
internalprevbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
//getInnerFieldText(currentItem);
internalnextbtn.setEnabled(true);
if(currentItem == 1){
internalprevbtn.setEnabled(false);
if(currentItem > 0){
--currentItem;
//readOrder();
setInnerFieldText(currentItem);
innerleftpanel.add(internalprevbtn, GBC);
return innerleftpanel;
public JPanel createCustOrdDetailsButtons(){
createbuttonpanel();
buttonpanel.setBackground(TxtfontColor);
externalprevbtn = new JButton(createPreviousButtonIcon());
externalprevbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
getFieldText(CurrentRecord);
externalnextbtn.setEnabled(true);
if(CurrentRecord == 1){
externalprevbtn.setEnabled(false);
if(CurrentRecord > 0){
--CurrentRecord;
setFieldText(CurrentRecord);
System.out.println(CurrentRecord);//Checking RECORD_NUM
buttonpanel.add(externalprevbtn);
addrecordbtn = new JButton("Add Record", createAddButtonIcon());
addrecordbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
try{
MaxRecord = readRecordNumber();
MaxRecord++;
writeRecordNumber(MaxRecord);
//--<BEGINNING>--Clear Fields-------------------------------------------------------//
CustIDTxt.setText("");
CustOrderIDTxt.setText(""+MaxRecord);
//Get today's date
Date todaydate = new Date();
OrderedDateTxt.setText(""+simpleDF.format(todaydate));
ItemNumberTxt.setText("");
UnitPriceTxt.setText("");
QuantityReqTxt.setText("");
TotPriceTxt.setText("");
GrandTotTxt.setText("");
//--<END>--Clear Fields-------------------------------------------------------------//
externalnextbtn.setEnabled(false);
externalprevbtn.setEnabled(true);
System.out.println(MaxRecord);
} catch(Exception ec){ec.printStackTrace();}
buttonpanel.add(addrecordbtn);
savebtn = new JButton("Save Data", createSaveButtonIcon());
savebtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
setFieldText(CurrentRecord);
writeOrder();
writeRecordNumber(MaxRecord);
System.out.println(CurrentRecord);
System.out.println(MaxRecord);
buttonpanel.add(savebtn);
java.net.URL imageURL_AddRowIcon = CommonFeatures.class.getResource("Icons/edit_add.png");
ImageIcon AddRowIcon = new ImageIcon(imageURL_AddRowIcon);
additemreqbtn = new JButton("Add Item", AddRowIcon);
additemreqbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
try{
//--<BEGINNING>--Clear Fields-------------------------------------------------------//
ItemNumberTxt.setText("");
UnitPriceTxt.setText("");
QuantityReqTxt.setText("");
TotPriceTxt.setText("");
//--<END>--Clear Fields-------------------------------------------------------------//
//CurrentRecord = MaxRecord;
currentItem++;
setInnerFieldText(currentItem);
internalnextbtn.setEnabled(false);
internalprevbtn.setEnabled(true);
System.out.println(MaxRecord);
} catch(Exception ec){ec.printStackTrace();}
buttonpanel.add(additemreqbtn);
externalnextbtn = new JButton(createNextButtonIcon());
externalnextbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
getFieldText(CurrentRecord);
externalprevbtn.setEnabled(true);
if(CurrentRecord < MaxRecord){
++CurrentRecord;
setFieldText(CurrentRecord);
System.out.println(CurrentRecord);//Checking RECORD_NUM
if(CurrentRecord == MaxRecord){
externalnextbtn.setEnabled(false);
buttonpanel.add(externalnextbtn);
return buttonpanel;
//TODO
public void setFieldText(int orderID){//TODO
orderDetails[orderID].setCustID(Integer.parseInt(CustIDTxt.getText()));
orderDetails[orderID].setCustOrderID(Integer.parseInt(CustOrderIDTxt.getText()));
orderDetails[orderID].setOrderDate(OrderedDateTxt.getText());
orderDetails[orderID].setInnerCustOrdObj(innerCustOrdObj);
orderDetails[orderID].setMaxItems(MaxItems);
setInnerFieldText(currentItem);
orderDetails[orderID].setGrandTotal(Float.parseFloat(GrandTotTxt.getText()));
public void setInnerFieldText(int currentItem){//TODO
innerCustOrdObj[currentItem] = new InnerCustOrdObject();
innerCustOrdObj[currentItem].setItemNumber(Integer.parseInt(ItemNumberTxt.getText()));
innerCustOrdObj[currentItem].setUnitPrice(Float.parseFloat(UnitPriceTxt.getText()));
innerCustOrdObj[currentItem].setQuantityRequired(Integer.parseInt(QuantityReqTxt.getText()));
innerCustOrdObj[currentItem].setTotalPrice(Float.parseFloat(TotPriceTxt.getText()));
public void getFieldText(int orderID){
CustIDTxt.setText(Integer.toString(orderDetails[orderID].getCustID()));
CustOrderIDTxt.setText(Integer.toString(orderDetails[orderID].getCustOrderID()));
OrderedDateTxt.setText(""+orderDetails[orderID].getOrderDate());
currentItem = orderDetails[orderID].getMaxItems();
System.err.println("currentItem" + currentItem);
getInnerFieldText(currentItem);
GrandTotTxt.setText(Float.toString(orderDetails[orderID].getGrandTotal()));
public void getInnerFieldText(int currentItem){
ItemNumberTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getItemNumber()));
UnitPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getUnitPrice()));
QuantityReqTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getQuantityRequired()));
TotPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getTotalPrice()));
public void writeOrder(){//TODO
try {
objOut = new ObjectOutputStream(new FileOutputStream(OrderDetailsFile));
objOut.writeObject(orderDetails);
System.out.println("WORKING!");
objOut.flush();
objOut.close();
} catch (IOException e) {
e.printStackTrace();
public Object readOrder(){
Object temporaryObj;
try{
objIn = new ObjectInputStream(new FileInputStream(OrderDetailsFile));
temporaryObj = objIn.readObject();
CustOrdObject[] blah = (CustOrdObject[]) temporaryObj;
System.out.println("Outer: "+blah[1].getCustID());
InnerCustOrdObject[] whee = blah[1].getInnerCustOrdObj();
System.out.println("Inner: "+whee[1].getItemNumber());
objIn.close();
System.out.println("Read Worky!");
return temporaryObj;
}catch(Exception e){
e.printStackTrace();
System.out.println("Read No Worky!");
return null;
public void writeRecordNumber(int MaxRecord){
try{
objOut = new ObjectOutputStream(new FileOutputStream(OrdRecordNumStore));
objOut.writeObject(MaxRecord);
System.out.println("WORKING!");
objOut.flush();
objOut.close();
}catch(Exception e){e.printStackTrace();}
public int readRecordNumber() {
try {
objIn = new ObjectInputStream(new FileInputStream(OrdRecordNumStore));
int temporaryObj = Integer.parseInt(objIn.readObject().toString());
objIn.close();
System.out.println("Read Number Worky!");
return temporaryObj;
} catch (Exception e) {
e.printStackTrace();
System.out.println("Read Number No Worky!");
return -1;
}Message was edited by:
Kilik07
Message was edited by:
Kilik07ok i got reading to work to a certain extent... but the prob is i cnt seem to save my innerCustOrdObj proprly...when ever i look for a record using the gotorecordbtn, the outerobject, which is the orderDetails, seems to change but the innerCustOrdObj remains the same... heres the new code..
public class CustomerOrderDetails extends CommonFeatures{
//TODO
private static int MAX_ORDERS = 200;
private static int MAX_ORDERITEMS = 100;
private static int MaxRecord;
private static int CurrentRecord = 1;
private static int currentItem;
private static int MaxItems = 1;
private static boolean FileExists, recFileExists;
private static boolean RecordExists;
private static CustOrdObject[] orderDetails = new CustOrdObject[MAX_ORDERS];
private static InnerCustOrdObject[] innerCustOrdObj = new InnerCustOrdObject[MAX_ORDERITEMS];
private static File OrderDetailsFile = new File("CustOrdDetails.ser");
private static File OrdRecordNumStore = new File("OrdRecordNumStore.txt");
private static PrintWriter writeFile;
private static BufferedReader readFile;
private static ObjectOutputStream objOut;
private static ObjectInputStream objIn;
//Set format for date
SimpleDateFormat simpleDF = new SimpleDateFormat("dd MM yyyy");
//--<BEGINNING>--Declaring Interface Variables------------------------------------------//
private JPanel innertoppanel, innercenterpanel, innerbottompanel, innerrightpanel, innerleftpanel;
private JLabel CustIDLbl, CustOrderIDLbl, OrderedDateLbl, GrandTotLbl, ItemNumberLbl,UnitPriceLbl, QuantityReqLbl, TotPriceLbl;
private JTextField CustIDTxt, CustOrderIDTxt, OrderedDateTxt, GrandTotTxt, ItemNumberTxt, UnitPriceTxt, QuantityReqTxt, TotPriceTxt;
private JButton addrecordbtn, savebtn, externalprevbtn, externalnextbtn, internalprevbtn, internalnextbtn, gotorecordbtn, additemreqbtn;
//--<END>--Declaring Interface Variables------------------------------------------------//
public static void main(String[] args) {
final CustomerOrderDetails COD = new CustomerOrderDetails();
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
COD.createCustOrdDetailsScreen();
} catch (Exception eb) {
eb.printStackTrace();
//--<BEGINNING>--Creating CustomerOrderDetails Screen---------------------------------------//
public JFrame createCustOrdDetailsScreen() {
createDefaultFrame();
mainframe.setSize(800,500);
createContainerPanel();
containerpanel.add(createCustOrdDetailsTitle(), BorderLayout.NORTH);
containerpanel.add(createCustOrdDetailsMainPanel(), BorderLayout.CENTER);
//containerpanel.add(createCustOrdDetailsLeftNavButtons(), BorderLayout.WEST);
//containerpanel.add(createCustOrdDetailsRightNavButtons(), BorderLayout.EAST);
containerpanel.add(createCustOrdDetailsButtons(), BorderLayout.SOUTH);
mainframe.setContentPane(containerpanel);
mainframe.setLocationRelativeTo(null);
mainframe.setVisible(true);
//--<BEGINNING>--Checks to see whether CRecordNumberStore file exists-------------------------------//
if (OrdRecordNumStore.exists() == true) {
recFileExists = true;
}else {
recFileExists = false;
if (recFileExists == true) {
MaxRecord = readRecordNumber();
CurrentRecord = MaxRecord;
//readOrder();
//readInnerOrderRecord(CurrentRecord);
System.out.println("Current Record " +CurrentRecord);
System.out.println("Max Record " +MaxRecord);
}else{
MaxRecord = 1;
writeRecordNumber(MaxRecord);
CustOrderIDTxt.setText(""+MaxRecord);
System.out.println("Current Record " +CurrentRecord);
System.out.println("Max Record " +MaxRecord);
//--<END>--Checks to see whether CRecordNumberStore file exists--------------------------------------//
if(readOrder() != null){
orderDetails = (CustOrdObject[]) readOrder();
//CurrentRecord--;
//System.out.println("Current Rec Here"+CurrentRecord);
if(orderDetails[CurrentRecord] == null){
System.err.println("CustomerOrderObj 1 is null !!");
}else{
System.err.println("CustomerOrderObj 1 is not null !!");
if(orderDetails[CurrentRecord].getInnerCustOrdObj() == null){
System.err.println("InnerCustomerOrderObj is null !!");
}else{
System.err.println("InnerCustomerOrderObj is not null !!");
innerCustOrdObj = orderDetails[CurrentRecord].getInnerCustOrdObj();
MaxItems = orderDetails[CurrentRecord].getMaxItems();
if(CurrentRecord > 1 && CurrentRecord < MaxRecord){
externalnextbtn.setEnabled(true);
externalprevbtn.setEnabled(true);
if(CurrentRecord >= MaxRecord){
externalnextbtn.setEnabled(false);
getFieldText(CurrentRecord);
getInnerFieldText(MaxItems);
}else{
orderDetails[CurrentRecord] = new CustOrdObject();
currentItem = 1;
return mainframe;
//--<END>--Creating CustomerOrderDetails Screen---------------------------------------------//
public JPanel createCustOrdDetailsTitle(){
createTitlePanel();
titlepanel.setBackground(TxtfontColor);
label.setText("- Customer Order Details -");
labelpanel.setBackground(TxtfontColor);
label.setForeground(Color.white);
createbuttonpanel();
buttonpanel.setBackground(TxtfontColor) ;
buttonpanel.add(createReturnToMainMenuButton());
titlepanel.add(labelpanel, BorderLayout.WEST);
titlepanel.add(buttonpanel, BorderLayout.EAST);
return titlepanel;
public JPanel createCustOrdDetailsMainPanel(){
createmainpanel();
mainpanel.setBackground(TxtfontColor);
mainpanel.setLayout(new BorderLayout());
mainpanel.setBorder(BorderFactory.createTitledBorder(""));
mainpanel.add(createInnerTopPanel(), BorderLayout.NORTH);
mainpanel.add(createInnerCenterPanel(), BorderLayout.CENTER);
mainpanel.add(createInnerBottomPanel(), BorderLayout.SOUTH);
mainpanel.add(createInnerRightPanel(), BorderLayout.EAST);
mainpanel.add(createInnerLeftPanel(), BorderLayout.WEST);
return mainpanel;
public JPanel createInnerTopPanel(){
innertoppanel = new JPanel(new GridBagLayout());
innertoppanel.setBackground(TxtfontColor);
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
//Setting Font Type and Size
Font font = new Font("Arial", Font.BOLD, 11);
CustIDLbl = new JLabel("Customer ID");
CustIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
CustIDLbl.setFont(font);
CustIDLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 1;
innertoppanel.add(CustIDLbl, GBC);
CustIDTxt = new JTextField(20);
CustIDTxt.setEditable(true);
GBC.gridx = 2;
GBC.gridy = 1;
innertoppanel.add(CustIDTxt, GBC);
GBC.gridx = 3;
GBC.gridy = 1;
innertoppanel.add(Box.createHorizontalStrut(220), GBC);
OrderedDateLbl = new JLabel("Order Date");
OrderedDateLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
OrderedDateLbl.setFont(font);
OrderedDateLbl.setForeground(LblfontColor);
GBC.gridx = 4;
GBC.gridy = 1;
innertoppanel.add(OrderedDateLbl, GBC);
//Get today's date
Date todaydate = new Date();
OrderedDateTxt = new JTextField(simpleDF.format(todaydate), 20);
OrderedDateTxt.setHorizontalAlignment(JTextField.CENTER);
OrderedDateTxt.setEditable(false);
GBC.gridx = 5;
GBC.gridy = 1;
innertoppanel.add(OrderedDateTxt, GBC);
CustOrderIDLbl = new JLabel("Customer Order ID");
CustOrderIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
CustOrderIDLbl.setFont(font);
CustOrderIDLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 2;
innertoppanel.add(CustOrderIDLbl, GBC);
CustOrderIDTxt = new JTextField(20);
//CustOrderIDTxt.setEditable(false);
GBC.gridx = 2;
GBC.gridy = 2;
innertoppanel.add(CustOrderIDTxt, GBC);
return innertoppanel;
public JPanel createInnerCenterPanel(){
innercenterpanel = new JPanel(new GridBagLayout());
innercenterpanel.setBackground(TxtfontColor);
innercenterpanel.setBorder(BorderFactory.createLoweredBevelBorder());
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
//Setting Font Type and Size
Font font = new Font("Arial", Font.BOLD, 11);
ItemNumberLbl = new JLabel("Item Number");
ItemNumberLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
ItemNumberLbl.setFont(font);
ItemNumberLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 1;
innercenterpanel.add(ItemNumberLbl, GBC);
ItemNumberTxt = new JTextField(20);
GBC.gridx = 2;
GBC.gridy = 1;
innercenterpanel.add(ItemNumberTxt, GBC);
UnitPriceLbl = new JLabel("Unit Price");
UnitPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
UnitPriceLbl.setFont(font);
UnitPriceLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 2;
innercenterpanel.add(UnitPriceLbl, GBC);
UnitPriceTxt = new JTextField(20);
//UnitPriceTxt.setEditable(false);
GBC.gridx = 2;
GBC.gridy = 2;
innercenterpanel.add(UnitPriceTxt, GBC);
QuantityReqLbl = new JLabel("Quantity Required");
QuantityReqLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
QuantityReqLbl.setFont(font);
QuantityReqLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 3;
innercenterpanel.add(QuantityReqLbl, GBC);
QuantityReqTxt = new JTextField(20);
//QuantityReqTxt.setEditable(false);
GBC.gridx = 2;
GBC.gridy = 3;
innercenterpanel.add(QuantityReqTxt, GBC);
TotPriceLbl = new JLabel("Total Price");
TotPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
TotPriceLbl.setFont(font);
TotPriceLbl.setForeground(LblfontColor);
GBC.gridx = 1;
GBC.gridy = 4;
innercenterpanel.add(TotPriceLbl, GBC);
TotPriceTxt = new JTextField(20);
TotPriceTxt.setEditable(false);
TotPriceTxt.addFocusListener(new FocusAdapter(){
public void focusGained(FocusEvent evt){
TotPriceTxt.setText(""+Integer.parseInt(UnitPriceTxt.getText())*Integer.parseInt(QuantityReqTxt.getText()));
GBC.gridx = 2;
GBC.gridy = 4;
innercenterpanel.add(TotPriceTxt, GBC);
return innercenterpanel;
public JPanel createInnerBottomPanel(){
innerbottompanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
innerbottompanel.setBackground(TxtfontColor);
//Setting Font Type and Size
Font font = new Font("Arial", Font.BOLD, 11);
GrandTotLbl = new JLabel("Grand Total");
GrandTotLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
GrandTotLbl.setFont(font);
GrandTotLbl.setForeground(LblfontColor);
innerbottompanel.add(GrandTotLbl);
innerbottompanel.add(Box.createHorizontalStrut(30));
GrandTotTxt = new JTextField(20);
innerbottompanel.add(GrandTotTxt);
return innerbottompanel;
public JPanel createInnerRightPanel(){
innerrightpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
innerrightpanel.setBackground(TxtfontColor);
innerrightpanel.setLayout(new BoxLayout(navrightpanel, BoxLayout.Y_AXIS));
innerrightpanel.setBorder(BorderFactory.createLoweredBevelBorder());
innerrightpanel.setLayout(new GridBagLayout());
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
internalnextbtn = new JButton(createNextButtonIcon());
GBC.gridx = 1;
GBC.gridy = 1;
internalnextbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
getInnerFieldText(currentItem);
internalprevbtn.setEnabled(true);
if(currentItem < MaxItems){
++currentItem;
orderDetails[CurrentRecord].getInnerCustOrdObj();
setInnerFieldText(currentItem);
System.out.println("Current Item" + currentItem);
if(currentItem == MaxItems){
internalnextbtn.setEnabled(false);
innerrightpanel.add(internalnextbtn, GBC);
return innerrightpanel;
public JPanel createInnerLeftPanel(){
innerleftpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
innerleftpanel.setBackground(TxtfontColor);
innerleftpanel.setBorder(BorderFactory.createLoweredBevelBorder());
innerleftpanel.setForeground(Color.BLACK);
innerleftpanel.setLayout(new GridBagLayout());
GridBagConstraints GBC = new GridBagConstraints();
GBC.fill = GridBagConstraints.HORIZONTAL;
internalprevbtn = new JButton(createPreviousButtonIcon());
GBC.gridx = 1;
GBC.gridy = 1;
internalprevbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
getInnerFieldText(currentItem);
internalnextbtn.setEnabled(true);
if(currentItem == 1){
internalprevbtn.setEnabled(false);
if(currentItem > 0){
--currentItem;
orderDetails[CurrentRecord].getInnerCustOrdObj();
setInnerFieldText(currentItem);
System.out.println("Current Item" + currentItem);
innerleftpanel.add(internalprevbtn, GBC);
return innerleftpanel;
public JPanel createCustOrdDetailsButtons(){
createbuttonpanel();
buttonpanel.setBackground(TxtfontColor);
externalprevbtn = new JButton(createPreviousButtonIcon());
externalprevbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
getFieldText(CurrentRecord);
externalnextbtn.setEnabled(true);
if(CurrentRecord == 1){
externalprevbtn.setEnabled(false);
if(CurrentRecord > 0){
--CurrentRecord;
setFieldText(CurrentRecord);
System.out.println("Current Record " + CurrentRecord);//Checking RECORD_NUM
buttonpanel.add(externalprevbtn);
addrecordbtn = new JButton("Add Record", createAddButtonIcon());
addrecordbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
try{
MaxRecord = readRecordNumber();
MaxRecord++;
CurrentRecord = MaxRecord;
orderDetails[CurrentRecord] = new CustOrdObject();
writeRecordNumber(MaxRecord);
MaxItems = 1;
innerCustOrdObj[MaxItems] = new InnerCustOrdObject();
//--<BEGINNING>--Clear Fields-------------------------------------------------------//
CustIDTxt.setText("");
CustOrderIDTxt.setText(""+MaxRecord);
//Get today's date
Date todaydate = new Date();
OrderedDateTxt.setText(""+simpleDF.format(todaydate));
ItemNumberTxt.setText("");
UnitPriceTxt.setText("");
QuantityReqTxt.setText("");
TotPriceTxt.setText("");
GrandTotTxt.setText("");
//--<END>--Clear Fields-------------------------------------------------------------//
externalnextbtn.setEnabled(false);
externalprevbtn.setEnabled(true);
System.out.println(MaxRecord);
} catch(Exception ec){ec.printStackTrace();}
buttonpanel.add(addrecordbtn);
savebtn = new JButton("Save Data", createSaveButtonIcon());
savebtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
setFieldText(CurrentRecord);
setInnerFieldText(MaxItems);
writeOrder();
writeRecordNumber(MaxRecord);
System.out.println(CurrentRecord);
System.out.println(MaxRecord);
buttonpanel.add(savebtn);
java.net.URL imageURL_AddRowIcon = CommonFeatures.class.getResource("Icons/edit_add.png");
ImageIcon AddRowIcon = new ImageIcon(imageURL_AddRowIcon);
additemreqbtn = new JButton("Add Item", AddRowIcon);
additemreqbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
try{
//--<BEGINNING>--Clear Fields-------------------------------------------------------//
ItemNumberTxt.setText("");
UnitPriceTxt.setText("");
QuantityReqTxt.setText("");
TotPriceTxt.setText("");
//--<END>--Clear Fields-------------------------------------------------------------//
//CurrentRecord = MaxRecord;
MaxItems++;
innerCustOrdObj[MaxItems] = new InnerCustOrdObject();
System.out.println("Max Items "+MaxItems);
currentItem = MaxItems;
orderDetails[CurrentRecord].setMaxItems(MaxItems);
///setInnerFieldText(currentItem);
internalnextbtn.setEnabled(false);
internalprevbtn.setEnabled(true);
} catch(Exception ec){ec.printStackTrace();}
buttonpanel.add(additemreqbtn);
externalnextbtn = new JButton(createNextButtonIcon());
externalnextbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt){
getFieldText(CurrentRecord);
externalprevbtn.setEnabled(true);
if(CurrentRecord < MaxRecord){
++CurrentRecord;
setFieldText(CurrentRecord);
System.out.println(CurrentRecord);//Checking RECORD_NUM
if(CurrentRecord == MaxRecord){
externalnextbtn.setEnabled(false);
buttonpanel.add(externalnextbtn);
gotorecordbtn = new JButton("Go To Record", createGotoButtonIcon());
gotorecordbtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt){
* The text from the GotorecordTxt textfield will be taken and assigned
* to a temporary integer variable called Find.
int Find = Integer.parseInt(CustOrderIDTxt.getText());
for(int j=1; j <= MaxRecord; j++){
* Using a for loop, each record can be read using the readCustRecord
* method.
getFieldText(j);
* An if condition is utilized to check whether the temporary stored variable, Find,
* matches a field in a record. If this record is found, then using the RecordExists
* which was declared at the top, either a true or false statement can be assigned
* If the record exists, then a true statement will be assigned, if not a false
* statement will be assigned.
if(orderDetails[j].getCustOrderID() == Find){
RecordExists = true;
break;
}else{
RecordExists = false;
if(RecordExists == false){
* If the RecordExists is assigned a false statement, then a message will be
* displayed to show that the record does not exist.
JOptionPane.showMessageDialog(null, "Record Does Not Exist!", "Error Message", JOptionPane.ERROR_MESSAGE, createErrorIcon());
}else{
getFieldText(Find);
buttonpanel.add(gotorecordbtn);
return buttonpanel;
//TODO
public void setFieldText(int orderID){//TODO
orderDetails[orderID].setCustID(Integer.parseInt(CustIDTxt.getText()));
orderDetails[orderID].setCustOrderID(Integer.parseInt(CustOrderIDTxt.getText()));
orderDetails[orderID].setOrderDate(OrderedDateTxt.getText());
orderDetails[orderID].setInnerCustOrdObj(innerCustOrdObj);
orderDetails[orderID].setMaxItems(MaxItems);
setInnerFieldText(currentItem);
orderDetails[orderID].setGrandTotal(Float.parseFloat(GrandTotTxt.getText()));
public void setInnerFieldText(int currentItem){//TODO
innerCustOrdObj[currentItem] = new InnerCustOrdObject();
innerCustOrdObj[currentItem].setMaxItems(MaxItems);
innerCustOrdObj[currentItem].setItemNumber(Integer.parseInt(ItemNumberTxt.getText()));
innerCustOrdObj[currentItem].setUnitPrice(Float.parseFloat(UnitPriceTxt.getText()));
innerCustOrdObj[currentItem].setQuantityRequired(Integer.parseInt(QuantityReqTxt.getText()));
innerCustOrdObj[currentItem].setTotalPrice(Float.parseFloat(TotPriceTxt.getText()));
public void getFieldText(int orderID){
CustIDTxt.setText(Integer.toString(orderDetails[orderID].getCustID()));
CustOrderIDTxt.setText(Integer.toString(orderDetails[orderID].getCustOrderID()));
OrderedDateTxt.setText(""+orderDetails[orderID].getOrderDate());
currentItem = orderDetails[orderID].getMaxItems();
orderDetails[orderID].getInnerCustOrdObj();
System.err.println("currentItem" + currentItem);
//getInnerFieldText(currentItem);
GrandTotTxt.setText(Float.toString(orderDetails[orderID].getGrandTotal()));
public void getInnerFieldText(int currentItem){
ItemNumberTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getItemNumber()));
UnitPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getUnitPrice()));
QuantityReqTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getQuantityRequired()));
TotPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getTotalPrice()));
public void writeOrder(){//TODO
try {
objOut = new ObjectOutputStream(new FileOutputStream(OrderDetailsFile));
objOut.writeObject(orderDetails);
System.out.println("WORKING!");
objOut.flush();
objOut.close();
} catch (IOException e) {
e.printStackTrace();
public Object readOrder(){
Object temporaryObj;
try{
objIn = new ObjectInputStream(new FileInputStream(OrderDetailsFile));
temporaryObj = objIn.readObject();
CustOrdObject[] blah = (CustOrdObject[]) temporaryObj;
/* System.out.println("Outer: "+blah[1].getCustID());
InnerCustOrdObject[] whee = blah[1].getInnerCustOrdObj();
System.out.println("Inner: "+whee[1].getItemNumber());*/
objIn.close();
System.out.println("Read Worky!");
return temporaryObj;
}catch(Exception e){
e.printStackTrace();
System.out.println("Read No Worky!");
return null;
public void writeRecordNumber(int MaxRecord){
try{
objOut = new ObjectOutputStream(new FileOutputStream(OrdRecordNumStore));
objOut.writeObject(MaxRecord);
System.out.println("WORKING!");
objOut.flush();
objOut.close();
}catch(Exception e){e.printStackTrace();}
public int readRecordNumber() {
try {
objIn = new ObjectInputStream(new FileInputStream(OrdRecordNumStore));
int temporaryObj = Integer.parseInt(objIn.readObject().toString());
objIn.close();
System.out.println("Read Number Worky!");
return temporaryObj;
} catch (Exception e) {
e.printStackTrace();
System.out.println("Read Number No Worky!");
return -1;
}Message was edited by:
Kilik07 -
Problem with JPanel.updateUI()
Hello,
i have a problem with updateUI(), here's a simple example what's wrong. just compile and run the following piece of code and look what happens after 2 seconds: the left panel will be decrease its width after calling updateUI(), but why? is it a bug of updateUI() or is it my fault?
import java.awt.*;
import javax.swing.*;
public class Test extends JPanel
private JList m_list;
private DefaultListModel m_listModel;
private JPanel m_buttons;
public static GridBagConstraints creategbc (int x, int y, int w, int h, int wx, int wy, int f)
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = w;
gbc.gridheight = h;
gbc.weightx = wx;
gbc.weighty = wy;
gbc.fill = f;
gbc.insets = new Insets(5, 5, 5, 5); // kleinen Rahmen ziehen
return gbc;
public Test ()
GridBagLayout gbl = new GridBagLayout();
setLayout(gbl);
GridBagConstraints gbc;
initButtons();
gbc = creategbc(0, 0, 1, 1, 20, 100, GridBagConstraints.NONE);
gbc.anchor = GridBagConstraints.NORTH;
gbl.setConstraints(m_buttons, gbc);
add(m_buttons);
initList();
JScrollPane sp = new JScrollPane(m_list);
gbc = creategbc(1, 0, 1, 1, 100, 100, GridBagConstraints.BOTH);
gbl.setConstraints(sp, gbc);
add(sp);
public void addItem (String item)
m_listModel.addElement(item);
public void initList ()
m_listModel = new DefaultListModel();
m_list = new JList(m_listModel);
public void initButtons ()
m_buttons = new JPanel();
m_buttons.setLayout(new GridLayout(4, 1, 0, 20));
m_buttons.add(new JButton("Neu"));
m_buttons.add(new JButton("Bearbeiten"));
m_buttons.add(new JButton("L�schen"));
m_buttons.add(new JButton("Abfrage"));
public static void main (String[] args)
JFrame f = new JFrame();
Test t = new Test();
f.setContentPane(t);
f.setSize(600, 450);
f.setVisible(true);
try
Thread.sleep(2000);
catch (Exception e)
t.addItem("Hallo");
t.updateUI();Hello,
i have a problem with updateUI(), here's a simple
example what's wrong. just compile and run the
following piece of code and look what happens after 2
seconds: the left panel will be decrease its width
after calling updateUI(), but why? is it a bug of
updateUI() or is it my fault?updateUI() its called when the L&F is changed, there is
rarely a case when you need to call updateUI().
Why do you call updateUI() if you remove the call to updateUI()
everything will work OK.
merry xmas -
i have a jinternalframe with gridbaglayout which has several jpanels. one of the jpanels has to display an image.
i have searched through the forum and i have made a method to draw the image,
but the problem is that when i added to the jpanel the last (jpanel) gets much bigger and as a result to break down the layout.
any help is appreciated!i have searched through the forum and i have made a method to draw the image,Just add the image to a JLabel.
when i added to the jpanel the last (jpanel) gets much bigger[url http://java.sun.com/docs/books/tutorial/uiswing/layout/visual.html]How to Use Layout Managers -
Can anyone say the problem with the attached code. When I run the program, only, maximize, minimize and close options are viewable and nothing else.
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.Insets;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.LineBorder;
* Created on Mar 24, 2008
* @author Anand
public class JBackGroundImageDemo extends JFrame
Container con = null;
JPanel panelBgImg;
public JBackGroundImageDemo()
setTitle("JBackGroundImageDemo");
con = getContentPane();
con.setLayout(null);
ImageIcon imh = new ImageIcon("aditi.jpg");
setSize(imh.getIconWidth(), imh.getIconHeight());
panelBgImg = new JPanel()
public void paintComponent(Graphics g)
Image img = new ImageIcon("aditi.jpg").getImage();
Dimension size = new Dimension(img.getWidth(null), img.getHeight(null));
setPreferredSize(size);
setMinimumSize(size);
setMaximumSize(size);
setSize(size);
setLayout(null);
g.drawImage(img, 0, 0, null);
con.add(panelBgImg);
panelBgImg.setBounds(0, 0, imh.getIconWidth(), imh.getIconHeight());
GridBagLayout layout = new GridBagLayout();
JPanel panelContent = new JPanel(layout);
GridBagConstraints gc = new GridBagConstraints();
gc.insets = new Insets(3, 3, 3, 3);
gc.gridx = 1;
gc.gridy = 1;
JLabel label = new JLabel("UserName: ", JLabel.LEFT);
panelContent.add(label, gc);
gc.gridx = 2;
gc.gridy = 1;
JTextField txtName = new JTextField(10);
panelContent.add(txtName, gc);
gc.insets = new Insets(3, 3, 3, 3);
gc.gridx = 1;
gc.gridy = 2;
gc.gridwidth = 2;
JButton btn = new JButton("Login");
panelContent.add(btn, gc);
panelContent.setBackground(Color.GRAY);
panelContent.setBorder(new LineBorder(Color.WHITE));
panelBgImg.add(panelContent);
panelBgImg.setLayout(new FlowLayout(FlowLayout.CENTER, 150, 200));
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
public static void main(String[] args)
new JBackGroundImageDemo().setVisible(true);
Please help.
Regards,
AneesHere's you a little code example, it works, so take a look at it.
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Junk{
public Junk(){
public void makeFrame(){
JFrame j = new JFrame("Junk");
Toolkit t = Toolkit.getDefaultToolkit();
MediaTracker mt = new MediaTracker(j);
Image img = t.getImage("junk.jpg");
mt.addImage(img, 0);
try{
mt.waitForID(0);
}catch(InterruptedException e){
System.out.println("Hey, we were too impatient!");
myPanel p = new myPanel(img);
p.setPreferredSize(new Dimension(img.getWidth(null), img.getHeight(null)));
j.add(p);
j.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
j.pack();
j.setVisible(true);
public static void main(String[] args){
new Junk().makeFrame();
class myPanel extends JPanel{
Image img;
myPanel(Image img){
this.img = img;
public void paintComponent(Graphics g){
g.drawImage(img, 0, 0, this);
}BTW: your image should be in your project folder. -
Problem with Listeners/ requestFocus()
Hello,
I am new to Java (started learning two months back), There is a problem with the requestFocus() in the focusListener. The program does not return the focus to the object indicated in the requestFocus but it shows multiple cusors!!
The faculity at the institute where I am learning could not rectify the error.
Is the error because of the myMethod() which I am using. I had made this method to prove to my professor that we can reduce the code drastically while using the gridbaglayout.
The code which I had written is as under:
// file name ShopperApplet.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class ShopperApplet extends JApplet implements ActionListener, FocusListener,Runnable
//static JPanel sP;
//static JPanel oP;
JTabbedPane tabbedPane = new JTabbedPane();
JPanel sP;
JPanel oP;
JPanel pwd = new JPanel();
// Layout Decleration of oP
GridBagLayout ordL = new GridBagLayout();
GridBagConstraints ordC = new GridBagConstraints();
// Layout Decleration of sP
FlowLayout flow = new FlowLayout();
// Variables of sP
JTextField textShopperId;
JPasswordField textPassword;
JTextField textFirstName ;
JTextField textLastName ;
JTextField textEmailId ;
JTextField textAddress ;
JComboBox comboCity ;
JTextField textState ;
JTextField textCountryId ;
JTextField textZipCode ;
JTextField textPhone ;
JTextField textCreditCardNo ;
JRadioButton rbVisa;
JRadioButton rbMaster;
JRadioButton rbAmEx;
ButtonGroup BGccType;
//JComboBox comboCreditCardType;
//JTextField textExperyDate;
JComboBox cmbDt;
JComboBox cmbMth;
JComboBox cmbYear;
JButton btnSubmit;
JButton btnReset;
// Variables of oP
// Variable Decleration od oP
JTextField txtOrderNo;
JTextField txtToyId;
JTextField txtQty;
JRadioButton rbYes;
JRadioButton rbNo;
ButtonGroup bgGiftWrap;
JComboBox cmbWrapperId;
JTextField txtMsg;
JTextField txtToyCost;
JButton btnOSubmit;
JButton btnOReset;
// Variables of pwd
JTextField txtShopperId;
JPasswordField txtPassword;
JButton btnPSubmit;
JButton btnPReset;
JButton btnPNew;
JButton btnPLogoff;
JLabel lblN, lblN1;
Thread t,t1;
Font TNR = new Font("Times New Roman",1,15);
Font arial = new Font("Arial",2,15);
public void sPDet()
//Variable Decleration of sP
textShopperId = new JTextField(6);
textPassword = new JPasswordField(4);
textPassword.addFocusListener(this);
//textPassword = new JTextField(4);
textPassword.setEchoChar('*');
textFirstName = new JTextField(20);
textLastName = new JTextField(20);
textEmailId = new JTextField(25);
textAddress = new JTextField(20);
String cityList[] = {"New Delhi", "Mumbai", "Calcutta", "Hyderabad"};
comboCity = new JComboBox(cityList);
comboCity.setEditable(true);
textState = new JTextField(30);
textCountryId = new JTextField(25);
textZipCode = new JTextField(6);
textPhone = new JTextField(25);
textCreditCardNo = new JTextField(25);
String cardTypes[] = {"Visa", "Master Card", "American Express"};
//comboCreditCardType = new JComboBox(cardTypes);
rbVisa = new JRadioButton("Visa");
rbMaster = new JRadioButton("Master Card");
rbAmEx = new JRadioButton("American Express");
BGccType = new ButtonGroup();
BGccType.add(rbVisa);
BGccType.add(rbMaster);
BGccType.add(rbAmEx);
String stDt[] = {"1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31"};
String stMth[] = {"January","February","March","April","May","June","July","August","September","October","November","December"};
String stYear[] = {"2001","2002","2003","2004","2005","2006","2007","2008","2009","2010"};
cmbDt = new JComboBox(stDt);
cmbMth = new JComboBox(stMth);
cmbYear = new JComboBox(stYear);
//textExperyDate = new JTextField(10);
btnSubmit = new JButton("Submit");
btnReset = new JButton("Reset");
// Adding Layout Controls
sP.setLayout(ordL);
sP.setBackground(Color.green);
myLayout(textShopperId,3,1,sP,"FM","Shopper Id");
myLayout(textPassword,3,2,sP,"FM","Password");
myLayout(textFirstName,3,3,sP,"FM","First Name") ;
myLayout(textLastName,3,4,sP,"FM","Last Name") ;
myLayout(textEmailId,3,5,sP,"FM","E-Mail Id") ;
myLayout(textAddress,3,6,sP,"FM", "Address") ;
myLayout(comboCity,3,7,sP,"FM","City") ;
myLayout(textState,3,8,sP,"FM","State") ;
myLayout(textCountryId,3,9,sP,"FM","Country") ;
myLayout(textZipCode,3,10,sP,"FM","Zip Code") ;
myLayout(textPhone,3,11,sP,"FM","Phone") ;
myLayout(textCreditCardNo,3,12,sP,"FM","Credit Card No.") ;
//myLayout(rbVisa,3,13,sP);
JPanel newPanel = new JPanel();
newPanel.add(rbVisa);
newPanel.add(rbMaster);
newPanel.add(rbAmEx);
myLayout(newPanel,3,13,sP,"FM","Credit Card Type");
//myLayout(rbMaster,4,13);
//myLayout(rbAmEx,5,13);
JPanel newPanel1 = new JPanel();
newPanel1.add(cmbDt);
newPanel1.add(cmbMth);
newPanel1.add(cmbYear);
myLayout(newPanel1,3,14,sP,"FM","Expiry Date");
//myLayout(textExperyDate,3,14,sP,"FM");
myLayout(btnSubmit,1,17,sP,"AL","Submit");
myLayout(btnReset,3,17,sP,"AL","Reset");
public void oPDet()
txtOrderNo = new JTextField(10);
txtToyId = new JTextField(10);
txtQty = new JTextField(10);
rbYes = new JRadioButton("Yes");
rbNo = new JRadioButton("No");
bgGiftWrap = new ButtonGroup();
bgGiftWrap.add(rbYes);
bgGiftWrap.add(rbNo);
String wrapperTypes[] = {"Blue Stripes", "Red Checks", "Green Crosses","Yellow Circles", "Red & Purple Stripes"};
cmbWrapperId = new JComboBox(wrapperTypes);
txtMsg = new JTextField(10);
txtToyCost = new JTextField(10);
btnOSubmit = new JButton("Submit");
btnOReset = new JButton("Reset");
// Adding Controls to oP
oP.setLayout(ordL);
oP.setBackground(Color.yellow);
myLayout(txtOrderNo,3,1,oP,"FM","Order No.");
myLayout(txtToyId,3,2,oP,"FM","Toy Id");
myLayout(txtQty,3,3,oP,"FM","Quantity");
myLayout(rbYes,3,4,oP,"M");
myLayout(rbNo,4,4,oP,"M");
myLayout(cmbWrapperId,3,5,oP,"M","Wrapper Id");
myLayout(txtMsg,3,6,oP,"FM","Message");
myLayout(txtToyCost,3,7,oP,"FM","Toy Cost");
myLayout(btnOSubmit,1,8,oP,"AL","Submit");
myLayout(btnOReset,3,8,oP,"AL","Reset");
public void pwdDet()
pwd.setLayout(ordL);
pwd.setBackground(Color.green);
t = new Thread(this);
t.start();
t1 = new Thread(this);
t1.start();
lblN = new JLabel("");
lblN1 = new JLabel("");
txtShopperId = new JTextField(10);
txtPassword = new JPasswordField(10);
btnPSubmit = new JButton("Submit") ;
btnPReset = new JButton("Reset");
btnPNew = new JButton("New Member");
btnPLogoff = new JButton("Log Off");
pwd.setLayout(ordL);
pwd.setBackground(Color.yellow);
myLayout(lblN,3,7,pwd);
myLayout(lblN1,3,8,pwd);
myLayout(txtShopperId,3,1,pwd,"FM","Shopper Id.");
myLayout(txtPassword,3,2,pwd,"FM","Password");
myLayout(btnPSubmit,2,4,pwd,"AL","Submit");
myLayout(btnPReset,3,4,pwd,"AL","Reset");
myLayout(btnPNew,2,5,pwd,"AL","New");
myLayout(btnPLogoff,3,5,pwd,"AL","Log Off");
public void run()
int ctr =0;
String ili[] = {"India","is","a","Great","Country"};
int ctr1 = 0;
String iib[] = {"India","is","the","Best"};
Thread myThread = Thread.currentThread();
if (myThread == t)
while (t != null)
lblN.setText(ili[ctr]);
ctr++;
if (ctr >=5) ctr=0;
try
t.sleep(500);
catch(InterruptedException e)
showStatus("India is a great Country has been interrupter");
else
while (t1 != null)
lblN1.setText(iib[ctr1]);
ctr1++;
if (ctr1 >=4) ctr1=0;
try
t1.sleep(1000);
catch(InterruptedException e)
showStatus("India is the best has been interrupter");
public void myLayout(JComponent aObj, int x, int y, JPanel aPanel,String aListener,String toolTip)
ordC.anchor=GridBagConstraints.NORTHWEST;
JLabel aLabel = new JLabel(toolTip);
ordC.gridx = x-1;
ordC.gridy = y;
ordL.setConstraints(aLabel,ordC);
aPanel.add(aLabel);
aObj.setToolTipText("Enter "+toolTip+" here");
aObj.setForeground(Color.red);
aObj.setBackground(Color.green);
if (aListener.indexOf("F") != -1)
aObj.addFocusListener(this);
//if (aListener.indexOf("M") != -1)
//aObj.addMouseListener(this);
aObj.setFont(TNR);
ordC.gridx = x;
ordC.gridy = y;
ordL.setConstraints(aObj,ordC);
aPanel.add(aObj);
public void myLayout(JComponent aObj, int x, int y, JPanel aPanel,String aListener)
ordC.anchor=GridBagConstraints.NORTHWEST;
aObj.setForeground(Color.red);
aObj.setBackground(Color.green);
if (aListener.indexOf("F") != -1)
aObj.addFocusListener(this);
//if (aListener.indexOf("M") != -1)
//aObj.addMouseListener(this);
aObj.setFont(TNR);
ordC.gridx = x;
ordC.gridy = y;
ordL.setConstraints(aObj,ordC);
aPanel.add(aObj);
public void myLayout(JButton aObj, int x, int y, JPanel aPanel,String aListener, String toolTip)
aObj.setToolTipText(toolTip);
ordC.anchor=GridBagConstraints.NORTHWEST;
aObj.setForeground(Color.red);
if (aListener.indexOf("F") != -1)
aObj.addFocusListener(this);
//if (aListener.indexOf("M") != -1)
//aObj.addMouseListener(this);
if (aListener.indexOf("A") != -1)
aObj.addActionListener(this);
aObj.setFont(TNR);
ordC.gridx = x;
ordC.gridy = y;
ordL.setConstraints(aObj,ordC);
aPanel.add(aObj);
public void myLayout(JTextField aObj, int x, int y, JPanel aPanel,String aListener,String toolTip)
ordC.anchor=GridBagConstraints.NORTHWEST;
//aObj = new JTextField(10);
JLabel aLabel = new JLabel(toolTip);
ordC.gridx = x-1;
ordC.gridy = y;
ordL.setConstraints(aLabel,ordC);
aPanel.add(aLabel);
aObj.setToolTipText("Enter "+toolTip+" here");
aObj.setForeground(Color.red);
if (aListener.indexOf("F") != -1)
aObj.addFocusListener(this);
//if (aListener.indexOf("M") != -1)
// aObj.addMouseListener(this);
if (aListener.indexOf("A") != -1)
aObj.addActionListener(this);
aObj.setFont(TNR);
ordC.gridx = x;
ordC.gridy = y;
ordL.setConstraints(aObj,ordC);
aPanel.add(aObj);
public void myLayout(JLabel aObj, int x, int y, JPanel aPanel)
ordC.anchor=GridBagConstraints.SOUTH;
aObj.setForeground(Color.blue);
aObj.setFont(TNR);
ordC.gridx = x;
ordC.gridy = y;
ordL.setConstraints(aObj,ordC);
aPanel.add(aObj);
public void init()
getContentPane().add(tabbedPane);
sP = new JPanel();
sPDet();
oP = new JPanel();
oPDet();
pwdDet();
tabbedPane.addTab("Login",null,pwd,"Login");
tabbedPane.addTab("Shopper",null,sP,"Shopper Details");
tabbedPane.addTab("Order",null,oP,"Order Details");
tabbedPane.setEnabledAt(2, false);
tabbedPane.setEnabledAt(1, false);
public void actionPerformed(ActionEvent e)
Object obj = e.getSource();
if (obj == btnSubmit)
if (validShopperId() == false) return;
if (validPassword() == false) return;
if (validFirstName() == false) return ;
if (validLastName() == false) return ;
if (validEmailId() == false) return;
if (validAddress() == false) return;
if (validState() == false) return;
if (validCountryId() == false) return;
if (validZipCode() == false) return;
if (validCreditCardNo() == false) return ;
resetShopper();
tabbedPane.setEnabledAt(1,false);
tabbedPane.setEnabledAt(2,false);
tabbedPane.setSelectedIndex(0);
// also can be written as tabbedPane.setSelectedComponent(pwd);
//tabbedPane.remove(sP);
if (obj == btnReset)
resetShopper();
tabbedPane.setEnabledAt(2,false);
//textExperyDate.setText("");
if (obj == btnOSubmit)
if (validOrderNo() == false) return;
if (validToyId() == false) return;
if (chkNullEntry(txtQty, "Quantity")) return ;
if (chkNullEntry(txtToyCost, "Toy Cost")) return ;
if (obj == btnOReset)
resetOrder();
if (obj == btnPSubmit)
if (validPShopperId() && validPPassword())
tabbedPane.setEnabledAt(2, true);
tabbedPane.setEnabledAt(1, false);
txtShopperId.setText("");
txtPassword.setText("");
resetPassword();
//tabbedPane.addTab("Order",null,oP,"Order Details");
if (obj == btnPReset)
resetPassword();
tabbedPane.setEnabledAt(1, false);
tabbedPane.setEnabledAt(2, false);
if (obj == btnPNew)
tabbedPane.setEnabledAt(1, true);
tabbedPane.setEnabledAt(2, false);
resetPassword();
tabbedPane.setSelectedComponent(sP);
//tabbedPane.addTab("Shopper",null,sP,"Shopper Details");
if (obj == btnPLogoff)
tabbedPane.setEnabledAt(2, false);
tabbedPane.setEnabledAt(1, false);
resetPassword();
public void focusGained(FocusEvent fe)
//Object aObj = fe.getSource();
//showStatus("Current Object is "+aObj);
public void resetPassword()
txtShopperId.setText("");
txtPassword.setText("");
public void resetShopper()
textShopperId.setText("");
textPassword.setText("");
textFirstName.setText("") ;
textLastName.setText("") ;
textEmailId.setText("") ;
textAddress.setText("") ;
textState.setText("") ;
textCountryId.setText("") ;
textZipCode.setText("") ;
textPhone.setText("") ;
textCreditCardNo.setText("") ;
public void resetOrder()
txtOrderNo.setText("");
txtToyId.setText("");
txtQty.setText("") ;
txtToyCost.setText("") ;
txtMsg.setText("") ;
public void focusLost(FocusEvent fe)
try{
Object obj = fe.getSource();
if (obj == textShopperId && validShopperId() == false)
//textShopperId.requestFocus();
return;
if (obj == textPassword && validPassword() == false)
//textPassword.requestFocus();
return;
if (obj == textFirstName && validFirstName() == false)
//textFirstName.requestFocus();
return;
if (obj == textEmailId && validEmailId() == false)
//textEmailId.requestFocus();
return;
if (obj == txtOrderNo && validOrderNo() == false)
//txtOrderNo.requestFocus();
return;
if (obj == txtToyId && validToyId() == false);
//txtToyId.requestFocus();
return;
catch(Exception e)
showStatus("error in LostFocus() Method");
public boolean validShopperId()
if (chkNullEntry(textShopperId,"Shopper Id")) return false;
return true;
public boolean validPassword()
if (chkNullEntry(textPassword,"Password")) return false;
return true;
public boolean validFirstName()
if (chkNullEntry(textFirstName,"First Name")) return false;
return true;
public boolean validLastName()
if (chkNullEntry(textLastName,"Last Name")) return false;
return true;
public boolean validAddress()
if (chkNullEntry(textAddress,"Address")) return false;
return true;
public boolean validState()
if (chkNullEntry(textState,"State")) return false;
return true;
public boolean validCountryId()
if (chkNullEntry(textCountryId,"Country")) return false;
return true;
public boolean validZipCode()
if (chkNullEntry(textZipCode,"Postal Code")) return false;
return true;
public boolean validCreditCardNo()
if (chkNullEntry(textCreditCardNo,"Credit Card No.")) return false;
return true;
public boolean validEmailId()
if (chkNullEntry(textEmailId,"Email Address")) return false;
String s1 = textEmailId.getText();
int abc = s1.indexOf("@");
if (abc == -1 || abc == 0 || abc == (s1.length()-1))
JOptionPane.showMessageDialog(sP,"Invalid Email Address","Error Message",JOptionPane.ERROR_MESSAGE);
//textEmailId.requestFocus();
return false;
return true;
public boolean validOrderNo()
if (chkNullEntry(txtOrderNo,"Order No.")) return false;
return true;
public boolean validToyId()
if (chkNullEntry(txtToyId,"Toy Id")) return false;
return true;
public boolean chkNullEntry(JTextField aObj,String sDef)
String s1 = aObj.getText();
if (s1.length() ==0)
try
JOptionPane.showMessageDialog(sP,sDef+" cannot be left blank","Error Message",JOptionPane.ERROR_MESSAGE);
//showStatus(sDef+" cannot be left blank");
// nbvvvv vcz z111111eeeefgggggggggg aObj.requestFocus();
catch(Exception e)
showStatus("Error in chkNullEntry() method");
return true ;
else
return false;
public boolean validPShopperId()
if (chkNullEntry(txtShopperId,"Shopper Id")) return false;
return true;
public boolean validPPassword()
if (chkNullEntry(txtPassword,"Password")) return false;
return true;
// end of code.Would it not be acceptable to check that each field has a value when Submit is pressed. If a field is found with no data then display the error message and return the focus to the empty field. This would solve the multiple cursors problem as you would not need any focusLost handler code.
If this is entirely out of the question then you will have to override some of the FocusManager methods to prevent the JVM from handling focus for you :
FocusManager.setCurrentManager(new DefaultFocusManager() {
// Override FocusManager methods here.
});Ronny. -
Hello, I have a problem with writing a file. My code is very simple..it takes a line from one file, a line from a second file, combines them, and writes them into the third file. However, the program never gets past the point where it creates the output file. Any help is appreciated.
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MergeFiles extends JApplet implements ActionListener
private final String filename = "mergedfiles.txt";
BufferedReader f1in, f2in;
FileOutputStream outputstream;
JTextField f1f = new JTextField("file1.txt", 20);
JTextField f2f = new JTextField("file2.txt", 20);
String F1text, F2text, F3text;
JLabel title = new JLabel("Merge files program! Press enter to merge!");
JButton merge = new JButton("MERGE! MERGE! MERGE!");
JLabel labelone = new JLabel("File one");
JLabel labeltwo = new JLabel("File two");
Container con = getContentPane();
JPanel pane = new JPanel();
GridBagConstraints c = new GridBagConstraints();
public void makedisplay()
Insets i = new Insets(10, 10, 10, 10);
pane.setLayout(new GridBagLayout());
pane.setBackground(Color.green);
con.setBackground(Color.green);
con.add(pane, BorderLayout.CENTER);
con.add(title, BorderLayout.NORTH);
c.weightx = 0;
c.insets = i;
c.gridy = 0;
c.gridx = 0;
pane.add(labelone, c);
c.gridx = 1;
pane.add(labeltwo, c);
c.gridx = 0;
c.gridy = 1;
c.ipadx = 50;
pane.add(f1f, c);
c.gridx = 1;
pane.add(f2f, c);
c.gridx = 0;
c.gridy = 2;
c.gridwidth = 3;
c.ipadx = 0;
pane.add(merge, c);
public void init()
makedisplay();
merge.addActionListener(this);
public void actionPerformed(ActionEvent e)
openfiles();
File f = new File("H://mergefiles//mergedfile.txt");
try {
title.setText("AAA");
BufferedWriter out = new BufferedWriter(new FileWriter(f));
F1text = f1in.readLine();
F2text = f2in.readLine();
title.setText("BBB");
F3text = "" + F1text + F2text;
out.write("" + F3text);
f1in.close();
f2in.close();
out.close();
catch (IOException ex)
public void openfiles()
try
BufferedReader f1in = new BufferedReader(new FileReader(f1f.getText()));
title.setText("file one opened");
catch (FileNotFoundException e)
title.setText("File one not found!");
try
BufferedReader f2in = new BufferedReader(new FileReader(f2f.getText()));
title.setText("File two opened");
catch (FileNotFoundException e)
title.setText("File two not found!");
}Nevermind, I've fixed the problem...for some reason you can't use the writer with an applet. I've written some new code that works:
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MergeFiles2
static String F1L = "", F2L = "";
static File file1 = new File("H://mergefiles//file1.txt");
static File file2 = new File("H://mergefiles//file2.txt");
public static void main(String[] args) throws IOException
PrintWriter out = new PrintWriter(new FileWriter("file3.txt"));
BufferedReader f1in = new BufferedReader(new FileReader(file1));
BufferedReader f2in = new BufferedReader(new FileReader(file2));
while (F1L != null)
F1L = f1in.readLine();
if (F1L != null)
out.println(F1L);
while (F2L != null)
F2L = f2in.readLine();
if (F2L != null)
out.println(F2L);
out.close();
} -
Hi everyone,
I have been trying to get this GUI built from the ground up and I have encountered a problem with the GridBag(exception error that the fields being added can not be done. Also, my method main seems to be off track, I have a working program which the display fields have been modified to display object and everything else is the same except that I can not get the GUI to run.
The following is the code and any suggestions as to what I can do to get this going will be appreciated. Thank you.
import javax.swing.JLabel; /* displays text and images*/
import javax.swing.SwingConstants; /* common constants used with Swing*/
import javax.swing.Icon; /* interface used to manipulate images*/
import javax.swing.ImageIcon; /* loads images*/
import javax.swing.JOptionPane;
import java.util.*;
import java.io.PrintStream;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.*;
import javax.swing.JFrame;/* provides basic window features*/
import java.util.Arrays;
import javax.swing.ImageIcon.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
public class FinalInventoryGUI extends JFrame
{//Private variables.
private GridBagLayout layout = new GridBagLayout();
private GridBagConstraints constraints = new GridBagConstraints();
//Private data from main program
private String productName;
private String itmeNumber;
private double unitPrice;
private int unitStock;
private double productValue;
private double inventoryValue;
private double reStkfee;
//Declaration of the JLabels.
private JLabel logoLabel;
private JLabel productNameLabel;
private JLabel itemNumberLabel;
private JLabel unitPriceLabel;
private JLabel unitStockLabel;
private JLabel productValueLabel;
private JLabel InventoryValueLabel;
private JLabel reStkfeeLabel;
//Declaration of the text Fields for data Entry.
private JTextField productNameText;
private JTextField itemNumberText;
private JTextField unitPriceText;
private JTextField unitStockText;
private JTextField productValueText;
private JTextField inventoryValueText;
private JTextField reStkfeeText;
private JTextField titleText;
//Declaration of the JButtons for user interface.
private JButton first;//To move to first element in the array.
private JButton next;//To move to next element in the array.
private JButton previous;//To move to next element in the array.
private JButton lastButton;//To move to the first element in the array.
private JButton addButton;//To add a product to the array.
private JButton modifyButton;//To modify an element in the array.
private JButton deleteButton;//To remove a product from the array.
private JButton saveButton;//To save the array elements to C:\.
private JButton searchButton;//To search for an element in the array.
private Product products[];//Declaration of array product[] for storing entries.
private int NumOfProducts;//Declaration of the variable defining the number of products.
private int Index=0;//Setting the counter index to initiate at "0".
//Constants
private final static int LOGO_WIDTH = 4;
private final static int LOGO_HEIGHT = 4;
private final static int LABEL_WIDTH = 1;
private final static int LABEL_HEIGHT = 1;
private final static int TEXT_WIDTH = LOGO_WIDTH-LABEL_WIDTH;
private final static int TEXT_HEIGHT = 1;
private final static int BUTTON_WIDTH = 1;
private final static int BUTTON_HEIGHT = 1;
private final static int LABEL_START_ROW = LABEL_HEIGHT+LABEL_WIDTH+1;
private final static int LABEL_COLUMN = 0;
private final static int TEXT_START_ROW = LABEL_START_ROW;
private final static int TEXT_COLUMN = LABEL_WIDTH+1;
private final static int BUTTON_START_ROW = LABEL_START_ROW+9*LABEL_HEIGHT;
private final static int BUTTON_COLUMN = LABEL_COLUMN;
private final static int SEARCH_START_ROW = BUTTON_START_ROW+3;
final static String EMPTY_ARRAY_MESSAGE = "Hit ADD to add a new PRODUCT";
//Constructor-New instance of the JLabelTextFieldView.
public FinalInventoryGUI( Product productsIn)
{//Passing the frame title to JFrame, set the IconImage.
super("Welcome To The Inventory Program");
setLayout(layout);
//Copy the input array(products).
setProduct(productsIn);//maybe the title?????
//Start the display with the first element of the array.
index = 0;
//Build the GUI
buildGUI();
//Values
updateAllTextFields();
}//End of the constructor for building the GUI.
//Methods for copying the input of Product array to the GUIs private array
//variable
private void setInventoryArray(Product productsIn[])
products = new Product[productIn.length];
for (int i = 0; i<products.length; i++)
{//Creates A Product array element from the input array.
prodcuts[i] = new Product(productIn);
products[i] = new Product(productIn[i].productName(), productIn[i].itemNumber(),
productIn[i].unitStock(), productIn[i].unitPrice());
//System prints out a ineof the productsIn array to a string.
}//End of the for statment.
}//End for copying the array.
//A method for updating each of the GUIs fields.
private void updateAllTextFields()
if(products.length > 0)//Then update the JTextField display.
{// Update the product name text field.
productNameText.setText(products[index].productName());
//Update the Update the itemNumber text field.
itemNumberText.set(String.format("%d", products[index].itemNumber()));
//Update the title text field.
titleText.setText(dvd[index].title());
//Update the unitStock text field.
unitStockText.setText(String.format("%d",products[index].unitStock()));
//Update the unit price textField.
unitPriceText.setText(String.format("$%.2f",products[index].unitPrice()));
//Update the productValue textField.
productValueText.setText(String.format("$%.2f", products[index].productValue()));
//Update the restocking fee text field.
reStkfeeText.setText(String.format("$%.2f",reStkfee()));
//Update the total value of the inventory text field.
inventoryValueText.setText(String.formtat("$%.2f",Product.productValue(products)));
}//End of the if statement.
else//Put a special message in the fields.
{//Update the productName textField.
productNameText.setText(EMPTY_ARRAY_MESSAGE);
//Update the itemNumber textField
itemNumberText.setText(EMPTY_ARRAY_MESSAGE);
//Update the title textField.
titleText.setText(EMPTY_ARRAY_MESSAGE);
//Update the units in stock textField.
unitStockText.setText(EMPTY_ARRAY_MESSAGE);
//Update the unitPrice textFied.
unitPriceText.setText(EMPTY_ARRAY_MESSAGE);
//Update the productValue textField.
productValueText.setText(EMPTY_ARRAY_MESSAGE);
//Update the restocking fee textField.
reStkfeeText.setText(EMPTY_ARRAY_MESSAGE);
//Update the totatl inventoryValue textField.
inventoryValueText.setText(EMPTY_ARRAY_MESSAGE);
}//End else
}//Set the appropriate fields editable or uneditable.
private void setModifiableTextFieldsEnabled(Boolean state)
{//The fields of the product name, item number, unit price,
// and stock can be editable or non editable.
itemNumber.setEditable(state);
productName.setEditable(state);
unitPrice.setEditable(state);
unitStock.setEditable(state);
}//End setting of the modifiable textFields.
//Methods for the JButton methods.
private class ButtonHandler implements ActionListener
public void actionPerformed(ActionEvent event)
{//This is the first button being pressed by the user.
if(event.getSource()==firstButton)
handleFirstButton();
}//End if
else if(event.getSource()==previousButton)//Button previous is pressed by user.
handlePreviousButton();
}//End else if
else if (event.getSource()==nextButton)//Button next is pressed by user.
handleNextButton();
}//End else if.
else if (event.getSource()==lastButton)//Button last is pressed by the user.
handleLastButton();
}//End else if.
else if(event.getSource()==firstButton)
handleFirstButton();
}//End else if.
}//End metod of actionPeformed.
}//End class ButtonHandler
//Displaying the first element of the Product array
private void handlerFirstButton()
{//Setting the index to the first element in the array.
index = 0;
//Update and disable modification
updateAllFields();
setModifiableTextFieldsEnabled(false);
}//End method for handling the first button.
//Displaying the next element of the products array or wrap to the first.
private void handleNextButton()
{//Incrementation of the index.
index++;
//If the index exceeds the last valid array element, wrap around to the first
//element of the array.
if(index > products.length-1)
index = 0;
}//End if statment.
//Update and disable the modification.
updateAllFields();
setModifiableTextFieldsEnabled(false);
}//End method of handleNextButton.
private void handlePreviousButton()
index--;
if(index < 0)
index = products.length -1;
}//End if statment.
//Update and disabe modification.
updateAllTextFields();
setModifiableTextFieldsEnabled(false);
}//End method of handlePreviousButton.
private void handleLastButton()
index--;
if(index < products.length -1)
index = 2;
}//End if statment.
updateAllTextFields();
setMdifiableTextFieldsEnabled(false);
}//End method for handleLatButton
//The textFieldHandler class - handling the events of the buttonsmethods
private class TextFieldHandler implements ActionListener
public void actionPerformed(ActionEvent event)
{//The user pressed "ENTER" in the JTextField "title" text.
if(event.getSource() == itemNumber)
//HandleItemNumberTextField()is fired.
}//End the if statement.
//The user pressed "ENTER" in the JTextField "title" text.
else if (event.getSource() == titleText)
//HandleTitleTextField() is fired.
}//End the if statement.
//The user pressed "ENTER" in the JTextField "unitStoc" text.
else if(event.getSource() == unitStockText)
//HandleUnitStockTextField() is fired.
}//End the if statment
//The user pressed "ENTER" in the JtextField "unitPrice" text.
else if (event.getSource() == unitPriceText)
//HandleUnitPriceTextField() is fired.
}//End the if statment.
//The user pressed "ENTER" in the JTextField "Search" text.
else if(event.getSource() == searchText)
//HandleSearchTextField() is fired.
}//End the if statment.
}//End the method actionPerformed.
}//End the inner class TextFieldhandler.
//The GUI methods.
//Building the GUI.
private void BuildGUI()
{//Mthod for adding the LOGO.
buildLogo();
//Add the text fields and their labels.
buildLabels();
buildTextFields();
//Add the navigation and other buttons.
buildMainButtons();
//Provide value to the Fields.
updateAllTextFields();
//provide some setup to the frame.
setSize(FRAME_LENGTH, FRAME_WIDTH);
setLocation(FRAME-XLOC, FRAME_YLOC);
setResizable(false);
//PACK(); IS THIS NOT PART OF THE GUI ADDED AT THE END OR IS WHAT
//FOLLOWS THE SAME AS SAYING ".PACK()".
setDefaultCloseOperation(EXIT_ON_CLOSE);//DOES IT MATTER WHERE THIS LINE FALLS?
//WHEN I TRIED TO USE IT IN THE MAIN I RECEIVED AN ERROR AND THE SAME WHEN I
//PLACED IT IN THE CONSTRUCTOR--WHY?.
setVisible(true);
}//End of building the GUI.
//Addin the LOGO to the Frame.
private void buildLogo()
constraints.weightx = 2;
constraints.weigthy = 1;
logoLabel = new JLabel(new ImageIcon("O2K.jpg"));
logoLabel.setText("Products Inventory");
constraints.fill = GridBagConstraints.BOTH;
addToGridbag(logoLabel,2,2,LOGO_WIDTH, LOGO_HEIGHT);
//Creating a vertical space.
addToGridBag(new JLabel(""),LOGO_HEIGHT+1,0, LOGO_WIDTH, LABEL_WIDTH);
}//End the method with building the LOGO.
//Build the panel just containing the text.
private void buildLabels()
{//Set up if for readability).
int rows = 0;
int column = 0;
int width = 0;
int height = 0;
column = LABEL_COLUMN;
width = LABEL_WIDTH;
height = LABEL_HEIGHT;
constraints.weightx = 1;
constraints.weighty = 0;
constraints.fill = GridbagConstraints.Both;
//Create the name labes and name the TextFields.
productNameLabel = new JLabel("Product Name:");
productnamelabel.setLabelfor(productNameField);
productNameLabel.setLabelFor(productNameText);
productNameLabel.setToolTipText("Enter The Product Name Here");
row = Label_START_ROW;
addToGridBag(productNameLabel, row, column, width, height);
//Create the itemNumberLabel and TextField.
itemNumberLabel = new JLabel("Product Id:");
itemNumberLabel.setLabelFor(itemNumberText);
row += LABEL_HEIGHT;
addToGridBag(itemNumber, row, column, width, height);
//Create the title label for the Product and the title text field.
titleLabel = new JLabel("Inventory Of Products:");
titleLabel.setLabelFor(titleText);
row += LABEL_HEIGHT;
addToGridBag(titleLabel,row,column,width,height);
//Create the unitStock label and textField.
unitStockLabel = new JLabel("Units In Stock:");
unitStockLabel.setLabelFor(unitStockLabel);
row += LABEL_HEIGHT;
addToGridBag(unitStocklabel, row, column, height);
//Creat the unitPrice label and textField.
unitPriceLabel = new JLabel("Unit Price");
unitPriceLabel.setLabelFor(unitPriceLabel);
unitPriceLabel.setToolTipText("The Cost Of The Product");
row += LABEL_HEIGHT;
addToGridBag(unitPriceLabel, row, column, height);
//Create the productValue label and textField.
productValueLabel = new JLabel("Total Product Value:");
productValueLabel.setLabelFor(productValueLabel);
row += LABEL_HEIGHT;
addToGridBag(productValue, row, column, height);
//Create the restocking fee of 1.05% Label and textField.
reStkfeeLabel = new JLabel("Product Restock Fee:");
reStkfeeLabel.setLabelFor(reStkfeeLabel);
row+= LABEL_HEIGHT;
addToGridBag(reStkfee, row, column, height);
//Create a vertical space.
row += LABEL_HEIGHT;
//Create the Total Inventory Value label and textField.
inventoryValueLabel = new JLabel("Total Inventory Value:");
inventoryValueLabel.setLabelFor(inventoryValueLabel);
row += LABEL_HEIGHT;
addToGridBag(inventoryValue, row, column, height);
}//End the method for building the labels
//Build the methods for the TextFields.
private void buildTextFields()
{//Defining the variables
int row = 0;
int column = 0;
int width = 0;
int height = 0;
column = TEXT_COLUMN;
width = TEXT_WIDTH;
height = TEXT_HEIGHT;
constraints.fill = GridBagConstraints.BOTH;
constraints.weightx = 1;
TextFieldHandler handler = new TextFieldHandler();
productNameText = new JTextField("Product Name");
productNameText.setEditable(false);
row = TEXT_START_ROW;
addToGridBag(productNameText, row, column, height);
itemNumberText = new JTextField("Product Id");
itemNumberText.setEditable(false);
row = TEXT_START_ROW;
addToGridBag(itemNumberText, row, column, height);
titleText = new JTextField("Title");
titleText.addActionListener(handler);
titleText.setEditable(false);
row += TEXT_HEIGHT;
addToGridBag(titleText, row, column, height);
unitPriceText = new JTextField("Unit Price");
unitPriceText.addActionListener(handler);
unitPrice.setEditable(false);
row += TEXT_START_ROW;
addToGridBag(unitPriceText, row, column, height);
unitStockText = new JTextField("Units In Stock");
unitStockText.addActionListener(handler);
unitStockText.setEditable(false);
row += TEXT_START_ROW;
addToGridBag(unitStockText, row, column, height);
productValueText =new TextField("Product Value");
productValueText.addActionListener(handler);
productValueText.setEditable(false);
row += TEXT_START_ROW;
addToGridBag(productValueText, row, cloumn, height);
reStkfeeText =new JTextField("Restock Fee");
reStkfeeText.addActionListener(handler);
reStkfeeText.setEditable(false);
row += TEXT_START_ROW;
addToGridBag(reStkfeeText, row, cloumn, height);
//Creat vertical space.
row += TEXT_HEIGHT;
addToGridBag(new JLabel(""),row, column, height);
inventoryValueText =new TextField("Inventory Value");
inventoryValueText.addActionListener(handler);
inventoryValueText.setEditable(false);
row += TEXT_START_ROW;
addToGridBag(inventoryValueText, row, cloumn, height);
}//End the methods for building the TextFields.
//Add the main buttons to the frame.
private void buildMainButtons()
{//Declaraing the variables.
int row = 0;
int column = 0;
int width = 0;
int height = 0;
row =BUTTON_START_ROW;
column = BUTTON_COLUMN;
width = BUTTON_WIDTH;
height = BUTTON_HEIGHT;
constraints.weightx = 1;
constraints.weighty = 0;
//The constraints.fill = GridBagConstraints.HORIZONTAL;
ButtonHandler handler = new ButtonHandler();
//Creat a veritical space.
addToGridbag(new JLabel(""), row, column, width, height);
firstButton = new JButton("First");
firstButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(firstButton, row, column, width, height);
previousButton = new JButton("Previous");
previousButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(previousButton, row, column, width, height);
nextButton = new JButton("Next");
nextButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(nextButton, row, column, width, height);
lastButton = new JButton("Last");
lastButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(lastButton, row, column, width, height);
addButton = new JButton("Add");
addButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(addButton, row, column, width, height);
deleteButton = new JButton("Delete");
deleteButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(deleteButton, row, column, width, height);
saveButton = new JButton("Save");
saveButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(saveButton, row, column, width, height);
searchButton = new JButton("Search");
searchButton.addActionListener(handler);
row += LABEL_HEIGHT;
addToGridBage(searchButton, row, column, width, height);
//End methods for building the main butt0ns.
private void addToGridBag(Component component, int row, int column, int width, int height)
{ //Set up the upper-left corner of the component gridx and gridy.
constraints.gridx = column;
constraints.gridy = row;
//Set the numbers of rows and columns the components occupies.
constraints.gridwidth = width;
constraints.gridheight = height;
//set the constraints
Layout.setConstraints(component, constraints);
//Add the component to the JFrame.
add(component);
}//End method for addGridBag.
//End class JLabelTextFieldViewGui.
class Invetnory4
public static void main(String args[])
{ //An array variable.
Product[]inventory;
inventory = new Product[10];
//Create and pass control to the GUI
FinalInventory gui = new FinaInventoryGUI(inventory);
}//End method main
}//End class Inventory4
/*Inventory.java*/
/*Means for importing program packages*/
/*Beginning of the class type Inventory*/Hi Bryan,
I took your advice and decided to take a different approach to the problem I am having, I decided to stay somewhat with the basics with little knowledge I have about coding. I am new to this and I am trying to learn through the fire but it's getting hot so if you don't mind, can you tell me what I need to do to fix the error messages I am getting.
1. "else" without "if',
2. can't load my icon-a JPG
3. exception in thread amin
process complete.
4.Text area for displaying an iteration of the input
the code is not as long as the other one! any help will be appreciated. Also I am attaching the code to the GUI that does work but I can not seem to get the actionListener aspect to work. Thanks again.
//this one works and it serves as a model for what I am //trying to do in the fields. as well as designate a text area //where a each entry per iteration of input is displayed
* @(#)InventoryGUIFrame.java
* @author
* @version 1.00 2008/2/2
package components;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.event.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.text.*;
import java.awt.*;
* FormattedTextFieldDemo.java requires no other files.
* It implements a mortgage calculator that uses four
* JFormattedTextFields.
public class InventoryGUIFrame extends JFrame
String productName;
String itemNumber;
double unitPrice;
double unitStock;
//Labels to identify the fields
private JLabel productNamelabel;
private JLabel itemNumberlabel;
private JLabel unitPricelabel;
private JLabel unitStocklabel;
//Fields for data Entry
private JTextField productNameField;
private JTextField itemNumberField;
private JTextField unitPriceField;
private JTextField unitStockField;
//Adding the JButtons
JButton firstButton;
JButton nextButton;
JButton previousButton;
JButton searchButton;
JButton addButton;
JButton deleteButton;
JButton saveButton;
//Constructor
public InventoryGUIFrame()
super("Welcome To The Inventory Program");
setLayout(new FlowLayout());
setDefaultCloseOperation(EXIT_ON_CLOSE);
JFrame Frame = new JFrame();
Frame JPanel = new Frame();
JPanel JLabel= new JPanel();
TextArea area = new TextArea();
productNamelabel = new JLabel("PRODUCT NAME");
productNamelabel.setToolTipText("Name of the item you wish to calculate");
add(productNamelabel);
productNameField= new JTextField(8);
add(productNameField);
itemNumberlabel = new JLabel("PRODUCT NUMBER");
itemNumberlabel.setToolTipText("Number identifying the product");
add(itemNumberlabel);
itemNumberField =new JTextField(5);
add(itemNumberField);
unitPricelabel=new JLabel("PRODUCT PRICE");
unitPricelabel.setToolTipText("What is the cost of the product?:");
add(unitPricelabel);
unitPriceField = new JTextField(5);
add(unitPriceField);
unitStocklabel = new JLabel("UNITS IN STOCK");
unitStocklabel.setToolTipText("How many products in inventory?:");
add(unitStocklabel);
unitStockField = new JTextField(5);
add(unitStockField);
firstButton =new JButton("First");
add(firstButton);
nextButton = new JButton("Next");
add(nextButton);
previousButton = new JButton("Previous");
add(previousButton);
addButton = new JButton("Add");
add(addButton);
deleteButton = new JButton("Delete");
add(deleteButton);
saveButton = new JButton("Save");
add(saveButton);
searchButton = new JButton("Search");
add(searchButton);
public static void main(String args[])
InventoryGUIFrame frame = new InventoryGUIFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(740,150);
frame.setVisible(true);
class InventorySystem6
{ /*Declaration of products[] and the maximum storing capacity*/
private Product products[] = new Product[MAX_NUM_OF_PRODUCTS];
/*Prompts user to make another selection or exit program*/
private static final String STOP_COMMAND = "stop";
/*parameters defining maximun numbers of products available for storing in */
private static final int MAX_NUM_OF_PRODUCTS = 100;
/*Declaration of the variables */
String name;
String item;
double stock;
double price;
double reStkfee=1.05;
double pValue;
double iValue;
public InventorySystem6()
/*Empty Constructor*/
}/*Beginning of product input by the user*/
public void inputProductInfo()
{ /*Declaration of currency format*/
DecimalFormat Currency = new DecimalFormat();
Scanner input = new Scanner(System.in);
/*Beginning of the Loop*/
JOptionPane.showMessageDialog(null,"Welcome to the Inventory Program\n","Welcome to the Inventory Program\n",
JOptionPane.PLAIN_MESSAGE);
for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
name = JOptionPane.showInputDialog( "What is the Product Name? ");
if(name.equalsIgnoreCase("stop"))
break;
String item = JOptionPane.showInputDialog("Enter the products ID");
String priceStr =JOptionPane.showInputDialog("Enter the products price");
double price=Double.parseDouble(priceStr);
String stockStr=JOptionPane.showInputDialog("Enter the units in stock " );
double stock = Double.parseDouble(stockStr);
double sum=price*stock;
JOptionPane.showMessageDialog(null,"The product value is:"+sum, "pValue",
JOptionPane.PLAIN_MESSAGE);
/* JOptionPane.showMessageDialog(null,"The Product Name is:"+productName, "productName"
,"\n","The Product Id is "+productId,"Product ID"
,"\n","The Unit Price is"+unitPrice,"Unit Price"
,"\n","The Units In Stock is"+unitStock,"UnitStock"
,"\n","The Product Value is"+productValue, "productValue"
,"\n","The Restocking Fee is "+reStockfee,"Restock Fee"
,"\n","The Inventory Value is"+inventoryValue,"Inventory Value"
,"\n","The Inventory Restock Fee is"+reStockfee,"Restock Fee"
,"\n",JOptionPane.PLAIN_MESSAGE);*/
//Product products[] = new Product[100];
products[i] = new Product();
products[i].setitem(item);
products[i].setname(name);
products[i].setprice(price);
products[i].setstock(stock);
products[i].setpValue(sum);
products[i].setreStkfee(reStkfee);
iValue += sum + products[i].getreStkfee();
public void displayProductInfo()
{ /*Initialization of the variable total inventory value*/
NumberFormat moneyFormat = NumberFormat.getCurrencyInstance();
for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
Product product = products[i];
if(product==null)
System.out.println(products[i]);
break;
System.out.printf("product name: %s\n ", product.getname());
System.out.printf("product ID: %s \n", product.getitem());
System.out.printf("Unit Price: %s \n", moneyFormat.format(product.getprice()));
System.out.printf("units in Stock: %s \n", product.getstock());
System.out.printf("Total product Value: %s \n", moneyFormat.format(product.getpValue()));
System.out.printf("Restocking fee: %s \n", moneyFormat.format(product.getreStkfee()));
System.out.printf("Inventory Value: %s \n", iValue);
}/*Beginning of method main*/
public static void main(String[] args)
{/*Message*/
/*Means for retrieving and storing new data input into inventory program*/
InventorySystem6 JTableImageCreator = new InventorySystem6();
JTableImageCreator.displayProductInfo();
JTableImageCreator.inputProductInfo();
class Product
/*Declaration of and default value of specified variables*/
//private Product products[] = new Product[100];
private String item;
String name;
private double stock;
private double price;
private double pValue;
private double reStkfee;
//private String productNames[] = new String[1000]; //declaration of array "productNames" to store Product Names
private double iValue;
/*method defining the get and set values of each individual variable*/
public String getname()
{/*Mean for storing and retrieving input of name*/
return name;
}/*Means for setting the product name*/
public void setname(String name)
{/*null pointer argument exception defining metod for obtainng product name*/
this.name = name;
}/*Means for getting the units identifcation number inputted by the user*/
public String getitem()
{/*Means for returning the user input*/
return item;
}/*Means for setting the units identifcation */
public void setitem(String item)
{/*null pointer argument exception for setting the product identification number*/
this.item = item;
}/*Means for getting the units value input*/
public double getstock()
{/*Means for returning the variable of the units*/
return stock;
}/*Means for setting the units value*/
public void setstock(double stock)
this.stock = stock;
public double getprice()
{/*Means for returning the dollar value of the price of the unit(s)*/
return price;
}/*Means for setting and requesting user to input + dollar amt*/
public void setprice(double price)
this.price = price ;
}/*Means for setting the value of the total product value*/
public void setpValue(double pValue)
this.pValue = pValue+(price*stock);
}/*Means for getting the value of the product*/
public double getpValue()
{/*Means for returning the value*/
return pValue;
}/*Means for getting the TtlInventoryValue of products entered*/
public void setiValue(double iValue)
{/*Condition Statement*/
this.iValue=iValue;
public double getiValue()
return iValue;
public void setreStkfee(double reStkfee)
this.reStkfee=stock*price*1.05;
/*Means for setting restockin fee of the total products*/
public double getreStkfee()
{/*Means for calculating the restocking fee of each products units nStock*/
return reStkfee;
}/*Method for string the elements in [i] for display*/
public String toString()
{/*Means for returning defined string of elements in [i]*/
return "Product{" +
"item="+ item +
", name="+ name +
", stock="+ stock +
", price="+price +
", pValue="+pValue +
", reStkfee="+ reStkfee +
", iValue="+iValue+
}/*End set and get method*/
}/*End of class Product*/
/*Delcaration of the class type sortproductNames*/
class sortproductNames extends Product
{/*Declaration of the variable productName*/
protected String name;
/*Means for setting and getting values of the variable productName*/
public void setname(String name)
this.name = name;
public String getname()
return name;
public int compareTo(Object object)
{ // for sorting by product name
Product anotherProduct = (Product) object;
return name.compareTo( anotherProduct.name);
g.drawImage(image,0,0,200,50,0,0,image.getWidth(null), image.getHeight(null),null);
else;
g.drawString("O2K", 10,10);
* @(#)InventoryGUIFrame.java
* @author
* @version 1.00 2008/2/2
package components;
import java.io.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.imagio.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.event.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.text.*;
import java.awt.*;
* FormattedTextFieldDemo.java requires no other files.
* It implements a mortgage calculator that uses four
* JFormattedTextFields.
public class InventoryGUIPanelFrameTextArea extends JFrame
String productName;
String itemNumber;
double unitPrice;
double unitStock;
//Labels to identify the fields
private JLabel productNamelabel;
private JLabel itemNumberlabel;
private JLabel unitPricelabel;
private JLabel unitStocklabel;
//Fields for data Entry
private JTextField productNameField;
private JTextField itemNumberField;
private JTextField unitPriceField;
private JTextField unitStockField;
private Product[] products;
private int unitStock;
private int currentIndex=0;
//Adding the JButtons
JButton firstButton;
JButton nextButton;
JButton previousButton;
JButton searchButton;
JButton addButton;
JButton deleteButton;
JButton saveButton;
//Constructor
public InventoryGUIPanelFrameTextArea()
super("Welcome To The Inventory Program");
this.products = products;
this.numOfProducts = products;
JFrame JPanel = new JFrame();
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLayout(new GridLayout());
showLogo();
showLabels();
showInputFields();
showButtons();
public void showLogo()
O2K myLogo = new O2K();
this.add(myLogo);
public void showLabels()
JPanel panel = new JPanel();
panel.add(new JLabel("PRODUCT NAME"));
panel.add(new JLabel("ITEM NUMBER"));
panel.add(new JLabel("UNIT PRICE"));
panel.add(new JLabel("UNITS IN STOCK"));
this.add(panel);
public void showInputFields()
itemNumber =new JTextField(5);
itemNumber.setEditable(false);
productName= new JTextField(10);
productName.setEditable(false);
unitPrice= new JTextField(5);
unitPrice.setEditable(false);
unitStock = new JTextField(10);
unitStock.setEditable(false);
panel.setEditable(false);
panel.add(itemNumber);
panel.add(productName);
panel.add(unitPrice);
panel.add(unitStock);
this.add(panel);
public void showButtons()
JPanel panel = new JPanel();
first = new JButton("First");
next = new JButton("Next");
previous = new JButton("Previous");
add = new JButton ("Add");
delete = new JButton ("Delete");
search = new JButton ("Search");
save = new JButton ("Save");
panel.add(first);
panel.add(next);
panel.add(previous);
panel.add(add);
panel.add(delete);
panel.add(search);
panel.add(save);
panel.add(this);
ButtonActionHandler handler = new ButtonActionHandler();
first.addActionListener(handler);
next.addActionListener(handler);
previous.addActionListener(handler);
add.addActionListener(handler);
delete.addActionListener(handler);
search.addActionListener(handler);
save.addActinListener(handler);
this.add(panel);
setFields(0);
protected void paintComponent (Graphics g)
public void setFields(int i)
setItemNumber(i);
setProductName(i);
setUnitPrice(i);
setUnitStock(i);
public void setItemNumber( int i)
itemNumber.setText(products[i].getItemNumber());
public void setProductName(int i)
productname.setText(products[i].getProductName());
public void setUnitPrice( int i)
unitPrice.setText(String.valueOf(products[i].getunitPrice()));
public void setUnitStock(int i)
unitStock.setText(String.valueOf(products[i].getunitStock()));
private class ButtonActionHandler implements ActionListener
public void actionPerformed(ActionEvent event)
if(event.getSource()==first)
currentIndex=0;
setFields(currentIndex);
else if(event.getSource()==next)
currentIndex++;
if(currentIndex==unitStock);
currentIndex--;
setFields(currentIndex);
else if (event.getSource()==previous)
currentIndex--;
if(curentIndex < 0)
currentIndex=0;
setFields(currentIndex);
else if(event.getSource()==last)
currentIndex = unitStock -1;
setFields(currentIndex);
else if(event.getSource()==add)
currentIndex = productName ++;
setFields(currentIndex);
else if(event.getSource()==delete)
currentIndex= productName -1;
setFields(currentIndex);
else if (event.getSource()==search)
currentIndex=productName ++;
setFields(currentIndex);
else if (event.getSource()==save)
currentIndex=productName ++;
setFields(currentIndex);
public static void main(String args[])
JFrame mainFrame = new JFrame();
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setSize(400,300);
mainFrame.setVisible(true);
class InventorySystem6
{ /*Declaration of products[] and the maximum storing capacity*/
private Product products[] = new Product[MAX_NUM_OF_PRODUCTS];
/*Prompts user to make another selection or exit program*/
private static final String STOP_COMMAND = "stop";
/*parameters defining maximun numbers of products available for storing in [i]*/
private static final int MAX_NUM_OF_PRODUCTS = 100;
/*Declaration of the variables */
String name;
String item;
double stock;
double price;
double reStkfee=1.05;
double pValue;
double iValue;
public InventorySystem6()
/*Empty Constructor*/
}/*Beginning of product input by the user*/
public void inputProductInfo()
{ /*Declaration of currency format*/
DecimalFormat Currency = new DecimalFormat();
Scanner input = new Scanner(System.in);
/*Beginning of the Loop*/
JOptionPane.showMessageDialog(null,"Welcome to the Inventory Program\n","Welcome to the Inventory Program\n",
JOptionPane.PLAIN_MESSAGE);
for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
name = JOptionPane.showInputDialog( "What is the Product Name? ");
if(name.equalsIgnoreCase("stop"))
break;
String item = JOptionPane.showInputDialog("Enter the products ID");
String priceStr =JOptionPane.showInputDialog("Enter the products price");
double price=Double.parseDouble(priceStr);
String stockStr=JOptionPane.showInputDialog("Enter the units in stock " );
double stock = Double.parseDouble(stockStr);
double sum=price*stock;
JOptionPane.showMessageDialog(null,"The product value is:"+sum, "pValue",
JOptionPane.PLAIN_MESSAGE);
/* JOptionPane.showMessageDialog(null,"The Product Name is:"+productName, "productName"
,"\n","The Product Id is "+productId,"Product ID"
,"\n","The Unit Price is"+unitPrice,"Unit Price"
,"\n","The Units In Stock is"+unitStock,"UnitStock"
,"\n","The Product Value is"+productValue, "productValue"
,"\n","The Restocking Fee is "+reStockfee,"Restock Fee"
,"\n","The Inventory Value is"+inventoryValue,"Inventory Value"
,"\n","The Inventory Restock Fee is"+reStockfee,"Restock Fee"
,"\n",JOptionPane.PLAIN_MESSAGE);*/
//Product products[] = new Product[100];
products[i] = new Product();
products[i].setItemNumber(itemNumber);
products[i].setPrdocutName(productName);
products[i].setUnitPrice(unitPrice);
products[i].setUnitStock(unitStock);
products[i].setProductValue(sum);
products[i].setReStkfee(reStkfee);
inventoryValue += sum + products[i].getreStkfee();
public void displayProductInfo()
{ /*Initialization of the variable total inventory value*/
NumberFormat moneyFormat = NumberFormat.getCurrencyInstance();
for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
Product product = products[i];
if(product==null)
System.out.println(products[i]);
break;
System.out.printf("product name: %s\n ", product.getproductName());
System.out.printf("product ID: %s \n", product.getitemNumber());
System.out.printf("Unit Price: %s \n", moneyFormat.format(product.getunitPrice()));
System.out.printf("units in Stock: %s \n", product.getunitStock());
System.out.printf("Total product Value: %s \n", moneyFormat.format(product.getproductValue()));
System.out.printf("Restocking fee: %s \n", moneyFormat.format(product.getreStkfee()));
System.out.printf("Inventory Value: %s \n", inventoryValue);
}/*Beginning of method main*/
public static void main(String[] args)
{/*Message*/
/*Means for retrieving and storing new data input into inventory program*/
InventorySystem6 JTableImageCreator = new InventorySystem6();
JTableImageCreator.displayProductInfo();
JTableImageCreator.inputProductInfo();
class Product
/*Declaration of and default value of specified variables*/
//private Product products[] = new Product[100];
protected String itemNumber;
protected String prodcutname;
protected double unitStock;
protected double unitPrice;
protected double productValue;
protected double reStkfee;
protected double inventoryValue;
//private String productNames[] = new String[1000]; //declaration of array "productNames" to store Product Names
/*method defining the get and set values of each individual variable*/
public String getproductName()
{/*Mean for storing and retrieving input of name*/
return productName;
}/*Means for setting the product name*/
public void setProductName(String productName)
{/*null pointer argument exception defining metod for obtainng product name*/
this.productName = ProductName;
}/*Means for getting the units identifcation number inputted by the user*/
public String getitemNumber()
{/*Means for returning the user input*/
return itemNumber;
}/*Means for setting the units identifcation */
public void setItemNumber(String itemNumber)
{/*null pointer argument exception for setting the product identification number*/
this.itemNumber = itemNumber;
}/*Means for getting the units value input*/
public double getunitStock()
{/*Means for returning the variable of the units*/
return unitStock;
}/*Means for setting the units value*/
public void setUnitStock(double unitStock)
this.unitStock = unitStock;
public double getunitPrice()
{/*Means for returning the dollar value of the price of the unit(s)*/
return unitPrice;
}/*Means for setting and requesting user to input + dollar amt*/
public void setUnitPrice(double unitPrice)
this.unitPrice = unitPrice ;
}/*Means for setting the value of the total product value*/
public void setProductValue(double prodcutValue)
this.prodcutValue = unitPrice*unitStock;
}/*Means for getting the value of the product*/
public double getproductValue()
{/*Means for returning the value*/
return productValue;
}/*Means for getting the TtlInventoryValue of products entered*/
public void setInvetnoryValue(double invetnoryValue)
{/*Condition Statement*/
this.inventoryValue=inventoryValue;
public double getinvetotyValue()
return productValue;
public void setReStkfee(double reStkfee)
this.reStkfee=stock*price*1.05;
/*Means for setting restockin fee of the total products*/
public double getreStkfee()
{/*Means for calculating the restocking fee of each products units nStock*/
return reStkfee;
}/*Method for string the elements in [i] for display*/
public String toString()
{/*Means for returning defined string of elements in [i]*/
return "Product{" +
"itemNumber="+ itemNumber +
", productName="+ productName +
", unitStock="+ unitStock +
", unitPrice="+unitPrice +
", productValue="+prodcutValue +
", reStkfee="+ reStkfee +
", inventoryValue="+inventoryValue+
}/*End set and get method*/
}/*End of class Product*/
/*Delcaration of the class type sortproductNames*/
class sortproductNames extends Product
{/*Declaration of the variable productName*/
protected String name;
/*Means for setting and getting values of the variable productName*/
public void setProdcutName(String productName)
this.productName = productName;
public String getproductName()
return productName;
public int compareTo(Object object)
{ // for sorting by product name
Product anotherProduct = (Product) object;
return productName.compareTo( anotherProduct.productName);
class myGraphics extends component
private BufferedImage image;
private boolean imageFound = true;
public myGraphics()
super();
try
image=ImageIO.read(new File("Logo.jpg"));
catch(IOException x)
x.printStackTrace();
imageFound = false;
public void paint(Graphics g)
g.drawImage(image,0,0,200,50,0,0,image.getWidth(null), image.getHeight(null),null);
else;
g.drawString("O2K", 10,10); -
i have a JFrame with layout set to null
i have one jpanel with border layout ,showing a jtree
another panel with gridbaglayout is attached to the frame
when a node on the tree is clicked , changes are made to the second panel with lots of components.but the change in the second panel is reflected only when the jframe is resized,ie its not displayed automatically.what can be the problem?im using jdk6.try panel.updateUI();No. That method is used for a Look and Feel change.
Use:
panel.add(...);
panel.revalidate(); -
I`ve managed to open a JFrame in fullscreen mode but I have problems with centering buttons. I want to have a menu that consists of a number of buttons and I want them to be centered (both vertically and horizontally). I have the buttons in a JPanel but how can I center it now?
EDIT:
public class MainMenu extends JPanel{
private static final long serialVersionUID = 1L;
private JButton newGame, quit;
private JPanel buttons;
public MainMenu(){
newGame = new JButton("New Game");
quit = new JButton("Quit");
newGame.setAlignmentX(Component.CENTER_ALIGNMENT);
quit.setAlignmentX(Component.CENTER_ALIGNMENT);
buttons = new JPanel();
buttons.setLayout( new BoxLayout(buttons, BoxLayout.Y_AXIS));
buttons.setAlignmentY(Component.CENTER_ALIGNMENT);
buttons.add(newGame);
buttons.add(quit);
add(buttons);
In a JFrame class I call this like that:
this.setContentPane( new MainMenu() );Firstly make sure that your JPanel is the same size as your screen, use a setsize method. Secondly, go to www.javaalmanac.com and search for gridbaglayout. A gridbaglayout is a way to organize components horizontally and vertically.
-
Hey everyone. I'm having some problems with creating a gridBagLayout for my application. I have a blank frame right now and I've been having problems setting it up with the gridBagLayout. I just want to have 4 TextFields with Labels and a submit and cancel button.
Would someone be able to post an example of this?public class Help extends javax.swing.JFrame
private javax.swing.JLabel label1;
private javax.swing.JLabel label2;
private javax.swing.JLabel label3;
private javax.swing.JLabel label4;
private javax.swing.JTextField textfield1;
private javax.swing.JTextField textfield2;
private javax.swing.JTextField textfield3;
private javax.swing.JTextField textfield4;
private javax.swing.JPanel panelForButtons;
private javax.swing.JButton buttonSubmit;
private javax.swing.JButton buttonCancel;
public Help()
super("Help");
initComponents();
pack();
private void initComponents()
label1 = new javax.swing.JLabel("Label1 :");
label2 = new javax.swing.JLabel("Label2 :");
label3 = new javax.swing.JLabel("Label3 :");
label4 = new javax.swing.JLabel("Label4 :");
textfield1 = new javax.swing.JTextField();
textfield2 = new javax.swing.JTextField();
textfield3 = new javax.swing.JTextField();
textfield4 = new javax.swing.JTextField();
panelForButtons = new javax.swing.JPanel();
buttonSubmit = new javax.swing.JButton("Submit");
buttonCancel = new javax.swing.JButton("Cancel");
getContentPane().setLayout(new java.awt.GridBagLayout());
java.awt.GridBagConstraints c1 = new java.awt.GridBagConstraints();
addWindowListener(new java.awt.event.WindowAdapter()
public void windowClosing(java.awt.event.WindowEvent evt)
System.exit(0);
c1.insets = new java.awt.Insets(5, 5, 5, 5);
c1.gridx = 0;
c1.gridy = 0;
getContentPane().add(label1, c1);
c1.gridx = 0;
c1.gridy = 1;
getContentPane().add(label2, c1);
c1.gridx = 0;
c1.gridy = 2;
getContentPane().add(label3, c1);
c1.gridx = 0;
c1.gridy = 3;
getContentPane().add(label4, c1);
textfield1.setPreferredSize(new java.awt.Dimension(150, 16));
c1.gridx = 1;
c1.gridy = 0;
getContentPane().add(textfield1, c1);
textfield2.setPreferredSize(new java.awt.Dimension(150, 16));
c1.gridx = 1;
c1.gridy = 1;
getContentPane().add(textfield2, c1);
textfield3.setPreferredSize(new java.awt.Dimension(150, 16));
c1.gridx = 1;
c1.gridy = 2;
getContentPane().add(textfield3, c1);
textfield4.setPreferredSize(new java.awt.Dimension(150, 16));
c1.gridx = 1;
c1.gridy = 3;
getContentPane().add(textfield4, c1);
panelForButtons.setLayout(new java.awt.GridBagLayout());
java.awt.GridBagConstraints c2 = new java.awt.GridBagConstraints();
c2.gridx = 0;
c2.gridy = 0;
panelForButtons.add(buttonSubmit, c2);
c2.gridx = 1;
c2.gridy = 0;
panelForButtons.add(buttonCancel, c2);
c1.gridx = 0;
c1.gridy = 4;
c1.gridwidth = 2;
c1.fill = java.awt.GridBagConstraints.HORIZONTAL;
getContentPane().add(panelForButtons, c1);
public static void main (String args[])
new Help().setVisible(true); -
Fill space in panel with GridBagLayout
Hello,
I have a class that extends JPanel and uses a GridBagLayout.
I would like the contents of this panel to occupy the whole available space.
However, I don't find how to do it with GridBagLayout (I know this is automatically done with BorderLayout but I want to use GridBagLayout for organizing internal components).
I have this small program to show the problem.
In this example, how could the button fill all the available space with GridBagLayout?
Note that setting GridBagConstraints fill to BOTH doesn't solve the issue.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.LayoutManager;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class TestBlankSpace {
private static int x = 200;
public static void main(String[] args) {
testPanel(new BorderLayout(), BorderLayout.CENTER);
testPanel(new GridBagLayout(), createGridBagConstraints());
private static void testPanel(LayoutManager manager, Object constraints) {
JPanel panel = new JPanel(manager);
JButton button = new JButton("button");
button.setBackground(Color.ORANGE);
panel.setBackground(Color.WHITE);
panel.add(button, constraints);
JFrame window = new JFrame("Test Panels");
window.add(panel);
window.setLocation(x, 200);
window.setSize(400, 300);
window.setVisible(true);
window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
x += 400;
private static GridBagConstraints createGridBagConstraints() {
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.BOTH;
return c;
}Thank youHi,
For better understanding the grid bag layout read this tutorial :
[http://java.sun.com/docs/books/tutorial/uiswing/layout/gridbag.html|http://java.sun.com/docs/books/tutorial/uiswing/layout/gridbag.html]
Olek
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