I need help withButtonHandler, getActionCommand
I trying to write a GUI app. I have to convert Celsius to Fahrenheit and vice versa.
This is what I got so far, but when I press any of the two buttons I got an error message
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.JOptionPane;
import javax.swing.JLabel;
public class Conversion extends JFrame
private JTextField textField1;
private JTextField textField2;
private JButton buttonF;
private JButton buttonC;
private JLabel label1;
public Conversion()
super("Converting Farenheit and Celcius degrees");
setLayout( new FlowLayout() );
label1 = new JLabel( "Enter number" );
//label1 = setVerticalTextPosition(swingConstants.TOP);
//label1 = setHorizontalTextPosition(swingConstants.LEFT);
add( label1 );
textField1 = new JTextField( 10 );
add( textField1 );
textField2 = new JTextField( 10 );
add( textField2 );
buttonC = new JButton("Celcius" );
add( buttonC );
buttonF = new JButton("Farenheit");
add( buttonF );
ButtonHandler handler = new ButtonHandler();
buttonF.addActionListener( handler );
buttonC.addActionListener( handler );
} // end constructor
private class ButtonHandler implements ActionListener
public void actionPerformed( ActionEvent event )
String num = "";
double result;
if( event.getSource() == buttonF ){
num = event.getActionCommand();
double c = Double.parseDouble(num);
result = getFarenheit(c);
textField2.setText("" + result);
else if( event.getSource() == buttonC ){
num = event.getActionCommand();
double f = Double.parseDouble(num);
result = getCelcius(f);
textField2.setText(result + "");
public double getFarenheit(double c)
double result = 9 / 5.0 * c + 32;
return result;
public double getCelcius(double f)
double result = 5.0/9 * (f - 32);;
return result;
}// end class ConversionFrame
I was about to post it.
This is the error I got when I try to run it
Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: "Celcius"
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1224)
at java.lang.Double.parseDouble(Double.java:482)
at ConversionFrame$ButtonHandler.actionPerformed(ConversionFrame.java:69)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1882)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2202)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:5583)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
at java.awt.Component.processEvent(Component.java:5348)
at java.awt.Container.processEvent(Container.java:2010)
at java.awt.Component.dispatchEventImpl(Component.java:4050)
at java.awt.Container.dispatchEventImpl(Container.java:2068)
at java.awt.Component.dispatchEvent(Component.java:3885)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
at java.awt.Container.dispatchEventImpl(Container.java:2054)
at java.awt.Window.dispatchEventImpl(Window.java:1791)
at java.awt.Component.dispatchEvent(Component.java:3885)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
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Warning this is very long code but i need help to see if I am on right trac
I have done all the following code myself and it is the buisiness layer for my application. I have tried to follow recommendations on previous posts and I would like to be told where I can clean up my code and how? This is not complete and it looks very long to me but I need help in order to be better. There are 4 button vlivks and I have not completed them all. The criteria for application is that phonebook will accept new entries if they have names surnames and phone numbers that are not longer than 10 characters for display purposes but can change this. No duplicates are allowed. No editing of a existing entry must lead to a duplicate entry either. No new entry or edit may result in a new contact having no phone numbers.
Many thanks for your time in advance,.....
import javax.swing.JOptionPane;
import java.util.ArrayList;
public class Contact
{// Start of the Contact class
ArrayList<ContactDetails> phoneList = new ArrayList<ContactDetails>(); // To hold all the contacts
ArrayList<ContactDetails> searchList = new ArrayList<ContactDetails>(); // To hold all contacts that return true on search
ArrayList<ContactDetails> list = new ArrayList<ContactDetails>();
String newName; // To hold the new name
String newSurname; // to hold the new surname
String newHome; // To hold the new home number if any
String newWork; // To hold the new work number
String newCell; // To hold the new cell number
final int MAX_LENGTH = 10;
public boolean addToPhoneList; // Sets to false if there is an invalid entry
public boolean addToSearchList; // Sets to false if there is an invlid search
public boolean modifyContact; // Sets to false if there is an invalid modification
// Method to create a new contact
public void createNew()
{// Start of create new()
addToPhoneList = true; // Set boolean to true each time the method is executed
getNewContactsName(); // Get new name
if(addToPhoneList == false)
createNew();
return;
getNewContactsSurname(); //Get new surname
if(addToPhoneList == false)
createNew();
return;
String checkName = newName; //Creates copies to be used in the checkIfDuplicate method
String checkSurname = newSurname;
addToPhoneList = checkIfDuplicate(checkName, checkSurname); //Check if the entries are duplicate
if(addToPhoneList == false)
createNew();
return;
getNewContactsHomeNum(); // Get new home number
if(addToPhoneList == false)
createNew();
return;
getNewContactsWorkNum(); // Get new work number
if(addToPhoneList == false)
createNew();
return;
getNewContactsCellNum(); // Get new cell number
if(addToPhoneList == false)
createNew();
return;
checkAtLeastOneNumEntered(); // Check that at least one phone number was entered
if(addToPhoneList == true)
updateListWithNew();
}// End of createNew()
// Method to search for an existing contact
public void searchExisting()
{// Start of searchExisting()
addToSearchList = true; // Set the boolean true
searchList.clear(); // Clear list from any previous searches
if(phoneList.size() > 0) // Check if any contacts are in the list
getExistingDetailsAndSearch(); // If there are entries then continue to search
else
JOptionPane.showMessageDialog(null,"There are no contacts to search for. Please use this option when you have added a contact to the list.","Error",JOptionPane.ERROR_MESSAGE);
}// End of searchExisting()
// Method to modify an existing contact
public void modifyExisting()
{// Start of modifyExisting()
modifyContact = true; // Set the boolean to true
if(phoneList.size() <= 0) // Check if the phonelist is not empty
JOptionPane.showMessageDialog(null,"There are no contacts to modify. Please use this option when there have been contacts added to the list.","Error",JOptionPane.ERROR_MESSAGE);
else
getExistingDetailsAndModify(); // If phonelist not emty continue to modify method
}// End of modifyExisting()
//Method to delete a contact from the list
public void deleteExisting()
//Method to get new contacts name
public void getNewContactsName()
newName = JOptionPane.showInputDialog("Please enter the new contacts name or press cancel to exit without saving.");
if(newName == null)
finish();
if(newName.trim().length()<=0)
JOptionPane.showMessageDialog(null,"You have not entered a name. Please try again.","Error",JOptionPane.ERROR_MESSAGE);
addToPhoneList = false;
return;
addToPhoneList = checkLengthValid(newName, "name");
//Method to get a new contacts surname
public void getNewContactsSurname()
newSurname = JOptionPane.showInputDialog("Please enter the new contacts surnname or press cancel to exit without saving.");
if(newSurname == null)
finish();
addToPhoneList = checkLengthValid(newSurname, "surname");
//Method to get a new contacts home number
public void getNewContactsHomeNum()
newHome = JOptionPane.showInputDialog("Please enter the new contacts home number or press cancel to exit without saving.");
if(newHome == null)
finish();
if(newHome.trim().length() > 0)
try
Long homeNum = Long.parseLong(newHome);
catch(Exception e)
JOptionPane.showMessageDialog(null,"You may only use numbers for a valid phone number. Please try again.","Error",JOptionPane.ERROR_MESSAGE);
addToPhoneList = false;
return;
addToPhoneList = checkLengthValid(newHome, "home number");
//Method to get a new contacst work number
public void getNewContactsWorkNum()
newWork = JOptionPane.showInputDialog("Please enter the new contacts work number or press cancel to exit without saving");
if(newWork == null)
finish();
if(newWork.trim().length()> 0)
try
Long workNum = Long.parseLong(newWork);
catch(Exception e)
JOptionPane.showMessageDialog(null,"You may only use numbers for a valid number. Please try again.","Error",JOptionPane.ERROR_MESSAGE);
addToPhoneList = false;
return;
addToPhoneList = checkLengthValid(newWork, "work number");
//Method to get a new contacts cell number
public void getNewContactsCellNum()
newCell = JOptionPane.showInputDialog("Please enter the new contacts cell number or press cancel to exit without saving");
if(newCell == null)
finish();
if(newCell.trim().length() > 0)
try
Long cellNum = Long.parseLong(newCell);
catch(Exception e)
JOptionPane.showMessageDialog(null,"You may only use numbers for a valid number. Please try again.","Error",JOptionPane.ERROR_MESSAGE);
addToPhoneList = false;
return;
addToPhoneList = checkLengthValid(newCell, "cell number");
//Method to get the details for an existing contact
public void getExistingDetailsAndSearch()
String existingName = getExistingName("search for");
if(existingName == null)
addToSearchList = false;
return;
if(existingName.length()<=0)
JOptionPane.showMessageDialog(null,"You have not entered a name please try again","Error",JOptionPane.ERROR_MESSAGE);
addToSearchList = false;
searchExisting();
String existingSurname = getExistingSurname();
if(existingSurname == null)
return;
if(addToSearchList == true)
searchAndAddIfFound(existingName, existingSurname);
//Method to get existing details and modify contact
public void getExistingDetailsAndModify()
String existingName = getExistingName("modify");
if(existingName == null)
modifyContact = false;
return;
if(existingName.length()<=0)
JOptionPane.showMessageDialog(null,"You have not entered a name please try again","Error",JOptionPane.ERROR_MESSAGE);
modifyContact = false;
modifyExisting();
String existingSurname = getExistingSurname();
if(existingSurname == null)
return;
if(modifyContact == true)
getContactBySearch(existingName.trim().toUpperCase(), existingSurname.trim().toUpperCase());
//Method to get the contact from list and modify details
public void getContactBySearch(String currentName, String currentSurname)
int count = 0;
int numFound = 0;
for(ContactDetails cd: phoneList)
cd = phoneList.get(count);
if((cd.name.equals(currentName))&&(cd.surname.equals(currentSurname)))
numFound ++;
changeDetails(cd);
count ++;
if(numFound <= 0)
JOptionPane.showMessageDialog(null,"No contacts matching the name and surname you entered found. Press the modify button to try again.","Information",JOptionPane.INFORMATION_MESSAGE);
//Method to get existing contacts name
public String getExistingName(String whatWasClicked)
String name = JOptionPane.showInputDialog("Please enter the contacts name that you wish to "+whatWasClicked);
return name;
//Method to get an existing contacts surname
public String getExistingSurname()
String surname = JOptionPane.showInputDialog("Please enter the contacts surname.");
return surname;
//Method to change the details of contact
public void changeDetails(ContactDetails conToChange)
String currentName = conToChange.name;
String currentSurname = conToChange.surname;
String currentHome = conToChange.home;
String currentWork = conToChange.work;
String currentCell = conToChange.cell;
String newNameForContact = getNewModName(currentName);
if(modifyContact == false)
modifyExisting();
return;
String newSurnameForContact = getNewModSurname(currentSurname);
if(modifyContact == false)
modifyExisting();
return;
String newHomeForContact = getNewModHome(currentHome);
if(modifyContact == false)
modifyExisting();
return;
String newWorkForContact = getNewModWork(currentWork);
if(modifyContact == false)
modifyExisting();
return;
String newCellForContact = getNewModCell(currentCell);
if(modifyContact == false)
modifyExisting();
return;
if(modifyContact == true)
conToChange.name = newNameForContact;
//Method to get the modified name
public String getNewModName(String currentName)
String newModifiedName = JOptionPane.showInputDialog("Please enter the new name for contact or press cancel to keep it as is.");
if(newModifiedName == null)
return currentName;
if(newModifiedName.trim().length() <= 0)
JOptionPane.showMessageDialog(null,"You may not replace the existing name with a blank name. Please try again.","Error",JOptionPane.ERROR_MESSAGE);
modifyContact = false;
return currentName;
modifyContact = checkLengthValid(newModifiedName, "modified name");
return newModifiedName;
//Method to get the modified surname
public String getNewModSurname(String currentSurname)
String newModifiedSurname = JOptionPane.showInputDialog("Please enter the new surname for the contact or press cancel to keep it as is.");
if(newModifiedSurname == null)
return currentSurname;
modifyContact = checkLengthValid(newModifiedSurname, "modified surname");
if(modifyContact == false)
JOptionPane.showMessageDialog(null,"Surname not changed.","Information",JOptionPane.INFORMATION_MESSAGE);
return currentSurname;
modifyContact = checkLengthValid(newModifiedSurname, "modified surname");
return newModifiedSurname;
//Method to search and update the list with a succesfull search
private void searchAndAddIfFound(String name, String surname)
int count = 0;
int numFound = 0;
for(ContactDetails cd: phoneList)
cd = phoneList.get(count);
if(cd.name.equals(name.trim().toUpperCase()))
numFound ++;
searchList.add(cd);
count ++;
if(numFound <= 0)
JOptionPane.showMessageDialog(null,"No contacts were found matching the dat you entered.","Information",JOptionPane.INFORMATION_MESSAGE);
else
list.clear();
list.addAll(searchList);
//Method that check all entries are a valid logical length
//Method is based on assumption that a normal name, surname, and phone numbers are not longer than 10 characters long.
//IF This method is changed please change the layout in the GUI as this is also set to fit with the layout that gives a neat //apperance
private boolean checkLengthValid(String detailEntered, String whatWasEntered)
boolean validLength = true;
if(detailEntered.trim().length() >= MAX_LENGTH)
JOptionPane.showMessageDialog(null,"The " +whatWasEntered+" you entered is too long. Please try again and use a "+whatWasEntered+" that is less than "+MAX_LENGTH+" characters long.","Error",JOptionPane.ERROR_MESSAGE);
validLength = false;
return validLength;
private void finish()
System.exit(0);
//Method to update the list with a new entry
private void updateListWithNew()
try
ContactDetails cd = new ContactDetails();
cd.name = newName.trim().toUpperCase();
cd.surname = newSurname.trim().toUpperCase();
cd.home = newHome.trim();
cd.work = newWork.trim();
cd.cell = newCell.trim();
phoneList.add(cd);
JOptionPane.showMessageDialog(null,"Contact succesfully entered. To save this change press exit to save or use the save option in the toolbar menu.","Information",JOptionPane.INFORMATION_MESSAGE);
catch(Exception e)
JOptionPane.showMessageDialog(null,"Failed to add contact to list. If problem persists please contact the software developer.","Error",JOptionPane.ERROR_MESSAGE);
list.clear();
list.addAll(phoneList);
//Method to check for duplicate
public boolean checkIfDuplicate(String nameToCheck, String surnameToCheck)
int count = 0;
boolean valid = true;
for(ContactDetails cd : phoneList)
cd = phoneList.get(count);
if(((nameToCheck.trim().toUpperCase()).equals(cd.name))&&((surnameToCheck.trim().toUpperCase()).equals(cd.surname)))
JOptionPane.showMessageDialog(null,"You may not enter a duplicate contact. Please try again and change the name and surname.","Error",JOptionPane.ERROR_MESSAGE);
valid = false;
break;
count ++;
return valid;
//Method to check that at least one phone number exists for contact
public void checkAtLeastOneNumEntered()
if((newHome.trim().length()<=0)&&(newWork.trim().length()<=0)&&(newCell.trim().length()<=0))
JOptionPane.showMessageDialog(null,"You have not entered any phone number at all. You must enter at least one phone number for a new contact.","Error",JOptionPane.ERROR_MESSAGE);
addToPhoneList = false;
//Method that returns the list to the GUI
public ArrayList<ContactDetails> getList()
return list;
}Should I start over from scratch? Can I get help with links to tutorials on following? How to create a java CRUD application (google not useful) and how to layer in java(google not useful)
This is my pres layer as is is this wrong too?
Filename: ContactsListInterface.java
Date: 16 March 2008
Programmer: Yucca Nel
Purpose: Provides a GUI for entering names and contact numbers into a telephone directory.
Also allows options for searching for a specific name and deleting of data from the record
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
import java.io.*;
import java.util.*;
import java.text.*;
public class Phonebook1 extends JFrame implements ActionListener
{ //start of class
// construct fields, buttons, labels,text boxes, ArrayLists etc
JTextPane displayPane = new JTextPane();
JLabel listOfContacts = new JLabel("List Of Contacts"); // creates a label for the scrollpane
JButton createButton = new JButton("Create");
JButton searchButton = new JButton("Search");
JButton modifyButton = new JButton("Modify");
JButton deleteButton = new JButton("Delete");
Contact c = new Contact();
ArrayList<ContactDetails> contactList = c.getList();
// create an instance of the ContactsListInterface
public Phonebook1()
{ // start of cli()
super("Phonebook Interface");
} // end of cli()
public JMenuBar createMenuBar()
{ // start of the createMenuBar()
// construct and populate a menu bar
JMenuBar mnuBar = new JMenuBar(); // creates a menu bar
setJMenuBar(mnuBar);
JMenu mnuFile = new JMenu("File",true); // creates a file menu in the menu bar which is visible
mnuFile.setMnemonic(KeyEvent.VK_F);
mnuFile.setDisplayedMnemonicIndex(0);
mnuFile.setToolTipText("File Options");
mnuBar.add(mnuFile);
JMenuItem mnuFileExit = new JMenuItem("Save And Exit"); // creates an exit option in the file menu
mnuFileExit.setMnemonic(KeyEvent.VK_X);
mnuFileExit.setDisplayedMnemonicIndex(1);
mnuFileExit.setToolTipText("Close Application");
mnuFile.add(mnuFileExit);
mnuFileExit.setActionCommand("Exit");
mnuFileExit.addActionListener(this);
JMenu mnuEdit = new JMenu("Edit",true); // creates a menu for editing options
mnuEdit.setMnemonic(KeyEvent.VK_E);
mnuEdit.setDisplayedMnemonicIndex(0);
mnuEdit.setToolTipText("Edit Options");
mnuBar.add(mnuEdit);
JMenu mnuEditSort = new JMenu("Sort",true); // creates an option for sorting entries
mnuEditSort.setMnemonic(KeyEvent.VK_S);
mnuEditSort.setDisplayedMnemonicIndex(0);
mnuEdit.add(mnuEditSort);
JMenuItem mnuEditSortByName = new JMenuItem("Sort By Name"); // to sort entries by name
mnuEditSortByName.setMnemonic(KeyEvent.VK_N);
mnuEditSortByName.setDisplayedMnemonicIndex(8);
mnuEditSortByName.setToolTipText("Sort entries by first name");
mnuEditSortByName.setActionCommand("Name");
mnuEditSortByName.addActionListener(this);
mnuEditSort.add(mnuEditSortByName);
JMenuItem mnuEditSortBySurname = new JMenuItem("Sort By Surname"); // to sort entries by surname
mnuEditSortBySurname.setMnemonic(KeyEvent.VK_R);
mnuEditSortBySurname.setDisplayedMnemonicIndex(10);
mnuEditSortBySurname.setToolTipText("Sort entries by surname");
mnuEditSortBySurname.setActionCommand("Surname");
mnuEditSortBySurname.addActionListener(this);
mnuEditSort.add(mnuEditSortBySurname);
JMenu mnuHelp = new JMenu("Help",true); // creates a menu for help options
mnuHelp.setMnemonic(KeyEvent.VK_H);
mnuHelp.setDisplayedMnemonicIndex(0);
mnuHelp.setToolTipText("Help options");
mnuBar.add(mnuHelp);
JMenuItem mnuHelpHelp = new JMenuItem("Help"); // creates a help option for help topic
mnuHelpHelp.setMnemonic(KeyEvent.VK_P);
mnuHelpHelp.setDisplayedMnemonicIndex(3);
mnuHelpHelp.setToolTipText("Help Topic");
mnuHelpHelp.setActionCommand("Help");
mnuHelpHelp.addActionListener(this);
mnuHelp.add(mnuHelpHelp);
JMenuItem mnuHelpAbout = new JMenuItem("About"); // creates a about option for info about api
mnuHelpAbout.setMnemonic(KeyEvent.VK_T);
mnuHelpAbout.setDisplayedMnemonicIndex(4);
mnuHelpAbout.setToolTipText("About this program");
mnuHelpAbout.setActionCommand("About");
mnuHelpAbout.addActionListener(this);
mnuHelp.add(mnuHelpAbout);
return mnuBar;
} // end of the createMenuBar()
// create the content pane
public Container createContentPane()
{ // start of createContentPane()
//construct and populate panels and content pane
JPanel labelPanel = new JPanel(); // panel is only used to put the label for the textpane in
labelPanel.setLayout(new FlowLayout());
labelPanel.add(listOfContacts);
JPanel displayPanel = new JPanel();// panel is used to display all the contacts and thier numbers
setTabsAndStyles(displayPane);
displayPane = addTextToTextPane();
displayPane.setEditable(false);
JScrollPane scrollPane = new JScrollPane(displayPane);
scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS); // pane is scrollable vertically
scrollPane.setWheelScrollingEnabled(true);// pane is scrollable by use of the mouse wheel
scrollPane.setPreferredSize(new Dimension(400,320));
displayPanel.add(scrollPane);
JPanel workPanel = new JPanel();// panel is used to enter, edit and delete data
workPanel.setLayout(new FlowLayout());
workPanel.add(createButton);
createButton.setToolTipText("Create a new entry");
createButton.addActionListener(this);
workPanel.add(searchButton);
searchButton.setToolTipText("Search for an entry by name number or surname");
searchButton.addActionListener(this);
workPanel.add(modifyButton);
modifyButton.setToolTipText("Modify an existing entry");
modifyButton.addActionListener(this);
workPanel.add(deleteButton);
deleteButton.setToolTipText("Delete an existing entry");
deleteButton.addActionListener(this);
labelPanel.setBackground(Color.red);
displayPanel.setBackground(Color.red);
workPanel.setBackground(Color.red);
// create container and set attributes
Container c = getContentPane();
c.setLayout(new BorderLayout(30,30));
c.add(labelPanel,BorderLayout.NORTH);
c.add(displayPanel,BorderLayout.CENTER);
c.add(workPanel,BorderLayout.SOUTH);
c.setBackground(Color.red);
// add a listener for the window closing and save
addWindowListener(
new WindowAdapter()
public void windowClosing(WindowEvent e)
int answer = JOptionPane.showConfirmDialog(null,"Are you sure you would like to save all changes and exit?","File submission",JOptionPane.YES_NO_OPTION);
if(answer == JOptionPane.YES_OPTION)
System.exit(0);
return c;
} // end of createContentPane()
protected void setTabsAndStyles(JTextPane displayPane)
{ // Start of setTabsAndStyles()
// set Font style
Style fontStyle = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
Style regular = displayPane.addStyle("regular", fontStyle);
StyleConstants.setFontFamily(fontStyle, "SansSerif");
Style s = displayPane.addStyle("bold", regular);
StyleConstants.setBold(s,true);
} // End of setTabsAndStyles()
public JTextPane addTextToTextPane()
{ // start of addTextToTextPane()
int numberOfEntries = contactList.size();
int count = 0;
Document doc = displayPane.getDocument();
try
{ // start of tryblock
// clear previous text
doc.remove(0,doc.getLength());
// insert titles of columns
doc.insertString(0,"NAME\tSURNAME\tHOME NO\tWORK NO\tCELL NO\n",displayPane.getStyle("bold"));
for(ContactDetails cd : contactList)
cd = contactList.get(count);
doc.insertString(doc.getLength(),cd.name+"\t"+cd.surname+"\t"+cd.home+"\t"+cd.work+"\t"+cd.cell+"\n",displayPane.getStyle("regular"));
count ++;
} // end of try block
catch(BadLocationException ble)
{ // start of ble exception handler
System.err.println("Could not insert text.");
} // end of ble exception handler
return displayPane;
} // end of addTextToTextPane()
// code to process user clicks
public void actionPerformed(ActionEvent e)
{ // start of actionPerformed()
String arg = e.getActionCommand();
// user clicks create button
if(arg.equals("Create"))
c.createNew(); // method to create a new Contact
addTextToTextPane();
if(arg.equals("Search"))
c.searchExisting(); // method to search for an existing entry
addTextToTextPane();
if(arg.equals("Modify"))
c.modifyExisting(); // method to modify contact
addTextToTextPane();
if(arg.equals("Delete"))
c.deleteExisting();
addTextToTextPane();
if(arg.equals("Exit"))
} // end of actionPerformed()
// method to create a new contact
public static void main(String[] args)
{ // start of main()
// Set look and feel of interface
try
{ // start of try block
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
} // end of try block
catch(Exception e)
{ // start of catch block
JOptionPane.showMessageDialog(null,"There was an error in setting the look and feel of this application","Error",JOptionPane.INFORMATION_MESSAGE);
} // end of catch block
Phonebook1 pb = new Phonebook1();
pb.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
pb.setJMenuBar(pb.createMenuBar());
pb.setContentPane(pb.createContentPane());
pb.setSize(520,500);
pb.setVisible(true);
pb.setResizable(false);
} // end of main()
} //end of class -
Hi all I'm working on a project and need help.
I want the "New" button to clear all the fields.
Any help?
=======================================================
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Message extends JFrame implements ActionListener {
public Message() {
super("Write a Message - by Kieran Hannigan");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(370,270);
FlowLayout flo = new FlowLayout(FlowLayout.RIGHT);
setLayout(flo);
//Make the bar
JMenuBar bar = new JMenuBar();
//Make "File" on Menu
JMenu File = new JMenu("File");
JMenuItem f1 = new JMenuItem("New");
JMenuItem f2 = new JMenuItem("Open");
JMenuItem f3 = new JMenuItem("Save");
JMenuItem f4 = new JMenuItem("Save As");
JMenuItem f5 = new JMenuItem("Exit");
File.add(f1);
File.add(f2);
File.add(f3);
File.add(f4);
File.add(f5);
bar.add(File);
//Make "Edit" on menu
JMenu Edit = new JMenu("Edit");
JMenuItem e1 = new JMenuItem("Cut");
JMenuItem e2 = new JMenuItem("Paste");
JMenuItem e3 = new JMenuItem("Copy");
JMenuItem e4 = new JMenuItem("Repeat");
JMenuItem e5 = new JMenuItem("Undo");
Edit.add(e5);
Edit.add(e4);
Edit.add(e1);
Edit.add(e3);
Edit.add(e2);
bar.add(Edit);
//Make "View" on menu
JMenu View = new JMenu("View");
JMenuItem v1 = new JMenuItem("Bold");
JMenuItem v2 = new JMenuItem("Italic");
JMenuItem v3 = new JMenuItem("Normal");
JMenuItem v4 = new JMenuItem("Bold-Italic");
View.add(v1);
View.add(v2);
View.add(v3);
View.addSeparator();
View.add(v4);
bar.add(View);
//Make "Help" on menu
JMenu Help = new JMenu("Help");
JMenuItem h1 = new JMenuItem("Help Online");
JMenuItem h2 = new JMenuItem("E-mail Programmer");
Help.add(h1);
Help.add(h2);
bar.add(Help);
setJMenuBar(bar);
//Make Contents of window.
//Make "Subject" text field
JPanel row2 = new JPanel();
JLabel sublabel = new JLabel("Subject:");
row2.add(sublabel);
JTextField text2 = new JTextField("RE:",24);
row2.add(text2);
//Make "To" text field
JPanel row1 = new JPanel();
JLabel tolabel = new JLabel("To:");
row1.add(tolabel);
JTextField text1 = new JTextField(24);
row1.add(text1);
//Make "Message" text area
JPanel row3 = new JPanel();
JLabel Meslabel = new JLabel("Message:");
row3.add(Meslabel);
JTextArea text3 = new JTextArea(6,22);
messagearea.setLineWrap(true);
messagearea.setWrapStyleWord(true);
JScrollPane scroll = new JScrollPane(text3,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
row3.add(scroll);
add(row1);
add(row2);
add(row3);
setVisible(true);
public static void main(String[] arguments) {
Message Message = new Message();
}Ok, given that I may have not been the kindest to you on the other thread (and I'm still annoyed that you went and cross-posted this), and that you did actually use code tags, I'm going to post some code here:
Please take the following advice onboard though.
1. When you are naming your artifacts, please use the java coding standard as your guide. So if you are naming a class you use a capital letter first, and use camel case thereafter. All method names begin with a lower case letter, and all variable names begin with a lower case letter (and again camel case after that)
2. Please use self explanitory names (for everything), so no more row1, row2, or text1, text2, etc.
3. The example I am giving below makes use of a single class to handle all actions, this is not really the best way to do this, and a better way would be to have a class to handle each action (that would remove the massive if() else if() in the action handler class.
4. When you are using class variables they should be private (no exceptions, ever!), if you need to access them from other classes use accessors (eclipse and other IDE tools can generate these methods for you in seconds)
5. Notice the naming convention for my constants (final statics), they are all upper case (again from the java coding standards document, which you are going to look for with google right?)
6. I have hived some of the creation work to helper methods (the getSubjectTextField() etc), although it isn't advisable to be calling other methods from the constructor, since this is a GUI, and you want it to appear as soon as you create the class, we won't worry about this, but perhaps as an execrise you could work out a better way to do this?
7. Personally, I don't like classes that implement listeners, unless they are specifically designed to do that job. So a Frame that is set up as an action listener is fine, provided the actions it listens for are associated with the frame, not its contents. If the actions are related to its contents, then a dedicated class is better.
8. Another personal opinion, but I feel it makes code clearer, but others may disagree. If you are creating a variable solely to hold the result of a calculation, to be passed to a method in the very next line, then don't create the variable, just pass the method as the argument to the method (feel free to ignore this advice if the method call is extremely long, and a local would make it easier to read)
Anyway, here is the code. I have removed most of the menu items, and leave this as an exercise for you. Also I have only created 2 methods (new and exit), I'll again leave it as an exercise for you to complete this.
package jdc;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.ScrollPaneConstants;
public class Message extends JFrame {
/** Constant for the new action command. */
private static final String NEW_COMMAND = "New";
/** Constant for the exit action command. */
private static final String EXIT_COMMAND = "Exit";
/** Subject text field. */
private JTextField subjectTextField;
/** Recipient text field. */
private JTextField toTextField;
/** Message text area. */
private JTextArea messageTextArea;
public Message() {
super("Write a Message - by Kieran Hannigan");
setSize(370, 270);
FlowLayout flo = new FlowLayout(FlowLayout.RIGHT);
setLayout(flo);
setJMenuBar(createMenuBar());
// Add "Subject" text field
JPanel subjectRow = new JPanel();
subjectRow.add(new JLabel("Subject:"));
subjectRow.add(getSubjectTextField());
// Add "To" text field
JPanel toRow = new JPanel();
toRow.add(new JLabel("To:"));
toRow.add(getToTextField());
// Make "Message" text area
JPanel messageRow = new JPanel();
JScrollPane scroll = new JScrollPane(getMessageTextArea(), ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
messageRow.add(scroll);
add(toRow);
add(subjectRow);
add(messageRow);
setVisible(true);
* Clear all the fields.
public void createNewMessage() {
getSubjectTextField().setText("");
getToTextField().setText("");
getMessageTextArea().setText("");
* Exit the application.
public void exitApplication() {
if (JOptionPane.showConfirmDialog(this, "Are you sure you would like to exit now?", "Exit",
JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
System.exit(0);
* @return The subject text field, (creates a new one if it doesn't already exist)
private JTextField getSubjectTextField() {
if (this.subjectTextField == null) {
this.subjectTextField = new JTextField("RE:", 24);
return this.subjectTextField;
* @return The to text field, (creates a new one if it doesn't already exist)
private JTextField getToTextField() {
if (this.toTextField == null) {
this.toTextField = new JTextField(24);
return this.toTextField;
* @return The message text area, (creates a new one if it doesn't already exist
private JTextArea getMessageTextArea() {
if (this.messageTextArea == null) {
this.messageTextArea = new JTextArea(6, 22);
this.messageTextArea.setLineWrap(true);
this.messageTextArea.setWrapStyleWord(true);
return this.messageTextArea;
* Helper method to create the menu bar.
* @return Menu bar with all menus and menu items added
private JMenuBar createMenuBar() {
JMenuBar bar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
fileMenu.add(new JMenuItem(new MenuItemAction(this, NEW_COMMAND)));
fileMenu.add(new JMenuItem(new MenuItemAction(this, EXIT_COMMAND)));
bar.add(fileMenu);
// TODO add all other menu's and menu items here....
return bar;
* Private static class to handle all menu item actions.
private static class MenuItemAction extends AbstractAction {
/** Instance of the message class. */
private Message message;
* @param actionName
public MenuItemAction(Message messageFrame, String actionName) {
super(actionName);
this.message = messageFrame;
* @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand().equals(NEW_COMMAND)) {
this.message.createNewMessage();
} else if (e.getActionCommand().equals(EXIT_COMMAND)) {
this.message.exitApplication();
// TODO Add the other event handlers here
public static void main(String[] arguments) {
Message messageFrame = new Message();
messageFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}If you have any questions, please let me know, as there are a number of new areas introduced that you may not have come across before. -
Java using GUI's mixed with opengl... needs help...urgent....
guys, i need help.... is anyone there have an idea about opengl...? ill attach 4 files that needs to be enhanced or debug for possible errors. to see the canvas... you should have atleast all the needed lib and jar of opengl in your pc.
its urgent, its for our thesis actually....ill be dividing the codes with the use of (" **** ")sign...
* Main.java
* Created on 29 January 2007, 08:12
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package longgong;
* @author welcome
public class Main {
/** Creates a new instance of Main */
public Main() {
* @param args the command line arguments
public static void main(String[] args) {
// TODO code application logic here
frmMain f = new frmMain();
* frmMain.java
* Created on November 10, 2006, 10:52 AM
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package longgong; // create a floder named longgong and add the class inside
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
* @author all user
public class frmMain extends JFrame implements ActionListener, ChangeListener, ItemListener{
JPanel pnlWest, pnlEast, pnlCenter, pnlSouth, pnlTitle, pnlSlider, pnlPlayers;
JSlider slrSpeed;
JList lstResults;
String varResults [] = new String[31];
JLabel lblPlayers, lblTitle;
JCheckBox lblPlayer1, lblPlayer2, lblPlayer3, lblPlayer4, lblPlayer5, lblPlayer6;
ImageIcon imgDice1;
MyCanvas canvas;
JButton btnStart, btnStop;
JMenuBar menuBar;
JMenu menuFile, menuView, menuHelp;
JMenuItem menuNew, menuExit, menuIn, menuOut, menuHigh, menuPlay, menuAbout;
boolean isNew = false;
/** Creates a new instance of frmMain */
public frmMain() {
setLayout(new BorderLayout());
setTitle("Longgong");
setSize(780,600);
canvas = new MyCanvas(getSize().width, getSize().height);
imgDice1 = new ImageIcon("c:\\java\\images\\one.png");
menuBar = new JMenuBar();
menuFile = new JMenu("File");
menuView = new JMenu("View");
menuHelp = new JMenu("Help");
menuNew = new JMenuItem ("New Game");
menuNew.addActionListener(this);
menuExit = new JMenuItem ("Exit");
menuExit.addActionListener(this);
menuIn = new JMenuItem ("Zoom In");
menuIn.addActionListener(this);
menuOut = new JMenuItem ("Zoom Out");
menuOut.addActionListener(this);
menuHigh = new JMenuItem ("High Score");
menuPlay = new JMenuItem ("How To Play");
menuPlay.addActionListener(this);
menuAbout = new JMenuItem ("About");
menuAbout.addActionListener(this);
menuFile.add(menuNew);
menuFile.add(menuExit);
menuView.add(menuIn);
menuView.add(menuOut);
menuView.add(menuHigh);
menuHelp.add(menuPlay);
menuHelp.add(menuAbout);
menuBar.add(menuFile);
menuBar.add(menuView);
menuBar.add(menuHelp);
setJMenuBar(menuBar);
varResults[0] = "Dice Results";
varResults[1] = "1. 3-4-2";
varResults[2] = "2. 3-1-4";
varResults[3] = "3. 3-6-5";
slrSpeed = new JSlider(0, 100, 0);
slrSpeed.setPaintTicks(true);
slrSpeed.setMinorTickSpacing(1);
slrSpeed.setPaintLabels(true);
slrSpeed.setSnapToTicks(true);
slrSpeed.addChangeListener(this);
slrSpeed.setEnabled(false);
btnStart = new JButton("Start");
btnStart.addActionListener(this);
btnStop = new JButton("Stop");
btnStop.addActionListener(this);
pnlWest = new JPanel();
pnlEast = new JPanel();
pnlCenter = new JPanel();
pnlSouth = new JPanel();
pnlTitle = new JPanel();
pnlSlider = new JPanel();
pnlPlayers = new JPanel();
pnlWest.setLayout(new BorderLayout());
pnlEast.setLayout(new BorderLayout());
pnlEast.setPreferredSize(new Dimension(100,400));
pnlCenter.setLayout(new BorderLayout());
pnlSouth.setLayout(new FlowLayout());
pnlTitle.setLayout(new FlowLayout());
pnlSlider.setLayout(new FlowLayout());
pnlPlayers.setLayout(new BoxLayout(pnlPlayers,BoxLayout.Y_AXIS));
pnlPlayers.setPreferredSize(new Dimension(150,400));
lblPlayers = new JLabel(" Players: Choice (s)");
lblPlayer1 = new JCheckBox("None");
lblPlayer1.addItemListener(this);
lblPlayer2 = new JCheckBox("None");
lblPlayer2.addItemListener(this);
lblPlayer3 = new JCheckBox("None");
lblPlayer3.addItemListener(this);
lblPlayer4 = new JCheckBox("None");
lblPlayer4.addItemListener(this);
lblPlayer5 = new JCheckBox("None");
lblPlayer5.addItemListener(this);
lblPlayer6 = new JCheckBox("None");
lblPlayer6.addItemListener(this);
lstResults = new JList(varResults);
pnlPlayers.add(lblPlayers);
pnlPlayers.add(lblPlayer1);
pnlPlayers.add(lblPlayer2);
pnlPlayers.add(lblPlayer3);
pnlPlayers.add(lblPlayer4);
pnlPlayers.add(lblPlayer5);
pnlPlayers.add(lblPlayer6);
pnlSlider.add(slrSpeed);
pnlSlider.add(btnStart);
pnlSlider.add(btnStop);
pnlEast.add(BorderLayout.CENTER, lstResults);
pnlCenter.add(BorderLayout.SOUTH, pnlSlider);
pnlCenter.add(BorderLayout.CENTER, canvas);
lblTitle = new JLabel("LONGGONG DICE GAME SIMULATION");
pnlTitle.add(lblTitle);
getContentPane().add(BorderLayout.NORTH,pnlTitle);
getContentPane().add(BorderLayout.WEST,pnlPlayers);
getContentPane().add(BorderLayout.EAST,pnlEast);
getContentPane().add(BorderLayout.CENTER, pnlCenter);
getContentPane().add(BorderLayout.SOUTH,pnlSouth);
setResizable(false);
canvas.start();
show();
//name change when player is selected
public void itemStateChanged(ItemEvent e) {
Object source = e.getItemSelectable();
int choice;
if (source == lblPlayer1) {
if (lblPlayer1.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer1);
if (source == lblPlayer2) {
if (lblPlayer2.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer2);
if (source == lblPlayer3) {
if (lblPlayer3.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer3);
if (source == lblPlayer4) {
if (lblPlayer4.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer4);
if (source == lblPlayer5) {
if (lblPlayer5.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer5);
if (source == lblPlayer6) {
if (lblPlayer6.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer6);
// if (e.getStateChange() == ItemEvent.DESELECTED)
//...make a note of it...
//slider speed change
public void stateChanged(ChangeEvent e){
canvas.speed(slrSpeed.getValue());
public void actionPerformed (ActionEvent e){
if (e.getActionCommand().equals ("Exit")){
System.exit (0);
//connects to frmNew
if (e.getActionCommand().equals ("New Game")){
frmNew n = new frmNew(this);
lblPlayer1.setText("None");
lblPlayer2.setText("None");
lblPlayer3.setText("None");
lblPlayer4.setText("None");
lblPlayer5.setText("None");
lblPlayer6.setText("None");
isNew = true;
lblPlayer1.setSelected(false);
lblPlayer2.setSelected(false);
lblPlayer3.setSelected(false);
lblPlayer4.setSelected(false);
lblPlayer5.setSelected(false);
lblPlayer6.setSelected(false);
if (e.getActionCommand().equals ("Start")){
slrSpeed.setEnabled(true);
canvas.setRandomDicePosition();
if (e.getActionCommand().equals ("Stop")){
slrSpeed.setValue(0);
slrSpeed.setEnabled(false);
//ADDED
if (e.getActionCommand().equals ("New Game")){
frmNew n = new frmNew(this);
if (e.getActionCommand().equals ("Zoom In")){
canvas.zoomIn();
if (e.getActionCommand().equals ("Zoom Out")){
canvas.zoomOut();
if (e.getActionCommand().equals ("How To Play")){
frmPlay p = new frmPlay();
if (e.getActionCommand().equals ("About")){
frmAbout a = new frmAbout();
package longgong;
// Java classes
import java.awt.*;
import java.awt.event.*;
import java.net.URL;
// GL4Java classes
import gl4java.GLContext;
import gl4java.awt.GLAnimCanvas;
import gl4java.utils.textures.*;
class MyCanvas extends GLAnimCanvas implements KeyListener, MouseListener
// holds information on which keys are held down.
boolean[] keys=new boolean[256];
float xrot; // X Rotation ( NEW )
float yrot; // Y Rotation ( NEW )
float zrot; // Z Rotation ( NEW )
float[] diceRotX = new float[3];
float[] diceRotY = new float[3];
float[] diceRotZ = new float[3];
float[] diceTranX = new float[3];
float[] diceTranY = new float[3];
float[] diceTranZ = new float[3];
float speedValue;
Dice[] D;
float zoom = -15.0f;
public MyCanvas(int w, int h)
super(w, h);
//Registers this canvas to process keyboard events, and Mouse events
addKeyListener(this);
addMouseListener(this);
setAnimateFps(60); // seemed to be essential in getting any performance
speedValue=0.0f;
diceTranX[0] = -2.0f;
diceTranY[0] = 2.0f;
diceTranZ[0] = zoom;
diceTranX[1] = 2.0f;
diceTranY[1] = 1.0f;
diceTranZ[1] = zoom;
diceTranX[2] = 0.0f;
diceTranY[2] = -2.0f;
diceTranZ[2] = zoom;
public void zoomIn(){
zoom=zoom+1.0f;
public void zoomOut(){
zoom=zoom-1.0f;
public void speed(float s){
speedValue=s/100;
/** void reshape(int width, int height) Called after the first paint command. */
public void reshape(int width, int height)
if(height==0)height=1;
gl.glViewport(0, 0, width, height); // Reset The Current Viewport And Perspective Transformation
gl.glMatrixMode(GL_PROJECTION); // Select The Projection Matrix
gl.glLoadIdentity(); // Reset The Projection Matrix
glu.gluPerspective(45.0f, width / height, 0.1f, 100.0f); // Calculate The Aspect Ratio Of The Window
gl.glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix
gl.glLoadIdentity(); // Reset The ModalView Matrix
/** void preInit() Called just BEFORE the GL-Context is created. */
public void preInit()
{ doubleBuffer = true; stereoView = false; // buffering but not stereoview
public void setRandomDicePosition(){
for (int i=0; i<3; i++){
D.setCoordinates(diceRotX[i],diceRotY[i],diceRotZ[i],diceTranX[i],diceTranY[i],diceTranZ[i]);
D[i].getRandomDice();
/** void init() Called just AFTER the GL-Context is created. */
public void init()
//float width = (float)getSize().width;
//float height = (float)getSize().height;
D = new Dice[5];
D[0] = new Dice(this);
D[1] = new Dice(this);
D[2] = new Dice(this);
//initialize dice location
for (int i=0; i<3; i++){
D[i].setCoordinates(diceRotX[i],diceRotY[i],diceRotZ[i],diceTranX[i],diceTranY[i],diceTranZ[i]);
D[i].getRandomDice();
gl.glEnable(GL_TEXTURE_2D); //Enable Texture Mapping ( NEW )
gl.glShadeModel(GL_SMOOTH); //Enables Smooth Color Shading
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); //This Will Clear The Background Color To Black
gl.glClearDepth(1.0); //Enables Clearing Of The Depth Buffer
gl.glEnable(GL_DEPTH_TEST); //Enables Depth Testing
gl.glDepthFunc(GL_LEQUAL); //The Type Of Depth Test To Do
gl.glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); //Really Nice Perspective Calculations
public void DrawBoundaries(){
double x,y;
double radius = 5.0f;
gl.glLoadIdentity(); // Reset The View
gl.glTranslatef(0.0f,0.0f,zoom-1.0f);
gl.glRotatef(90.0f,0.0f,0.0f,1.0f);
gl.glColor3f(0.6f,0.3f,0.3f);
gl.glBegin(gl.GL_POLYGON);
// angle is
// x = radius * (cosine of angle)
// y = radius * (sine of angle)
for (double a=0; a<360; a++) {
x = radius * (Math.cos(a));
y = radius * (Math.sin(a));
gl.glVertex3d(x, y, 0.0f);
gl.glEnd();
gl.glColor3f(1.0f,1.0f,1.0f);
public void DrawGLScene()
gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
DrawBoundaries();
for (int i=0; i<3; i++){
D[i].startDiceMovement();
D[i].setTz(zoom);
D[i].setSpeed(speedValue);
D[i].drawDice();
for (int i=0; i<3; i++){
//start of loop
if(i!=0){
if (D[0].getMoveLeft()==true){
if ( (D[0].getTx()>=D[i].getTx()-1.0f) && (D[0].getTx()<=D[i].getTx()) ){
if (D[0].getMoveLeft()== true) D[0].setMoveLeft(false);
else D[0].setMoveLeft(true);
}else{
if ( (D[0].getTx()-1<=D[i].getTx()) && (D[0].getTx()-1>=D[i].getTx()-1) ){
if (D[0].getMoveLeft()== true) D[0].setMoveLeft(false);
else D[0].setMoveLeft(true);
if (D[0].getMoveUp()==true){
if ( (D[0].getTy()>=D[i].getTy()-1.0f) && (D[0].getTy()<=D[i].getTy()) ){
if (D[0].getMoveUp()== true) D[0].setMoveUp(false);
else D[0].setMoveUp(true);
}else{
if ( (D[0].getTy()-1<=D[i].getTy()) && (D[0].getTy()-1>=D[i].getTy()-1) ){
if (D[0].getMoveUp()== true) D[0].setMoveUp(false);
else D[0].setMoveUp(true);
}//end of if i!=0
if(i!=1){
if (D[1].getMoveLeft()==true){
if ( (D[1].getTx()>=D[i].getTx()-1.0f) && (D[1].getTx()<=D[i].getTx()) ){
if (D[1].getMoveLeft()== true) D[1].setMoveLeft(false);
else D[1].setMoveLeft(true);
}else{
if ( (D[1].getTx()-1<=D[i].getTx()) && (D[1].getTx()-1>=D[i].getTx()-1) ){
if (D[1].getMoveLeft()== true) D[1].setMoveLeft(false);
else D[1].setMoveLeft(true);
if (D[1].getMoveUp()==true){
if ( (D[1].getTy()>=D[i].getTy()-1.0f) && (D[1].getTy()<=D[i].getTy()) ){
if (D[1].getMoveUp()== true) D[1].setMoveUp(false);
else D[1].setMoveUp(true);
}else{
if ( (D[1].getTy()-1<=D[i].getTy()) && (D[1].getTy()-1>=D[i].getTy()-1) ){
if (D[1].getMoveUp()== true) D[1].setMoveUp(false);
else D[1].setMoveUp(true);
}//end of if i!=1
if(i!=2){
if (D[2].getMoveLeft()==true){
if ( (D[2].getTx()>=D[i].getTx()-1.0f) && (D[2].getTx()<=D[i].getTx()) ){
if (D[2].getMoveLeft()== true) D[2].setMoveLeft(false);
else D[2].setMoveLeft(true);
}else{
if ( (D[2].getTx()-1<=D[i].getTx()) && (D[2].getTx()-1>=D[i].getTx()-1) ){
if (D[2].getMoveLeft()== true) D[2].setMoveLeft(false);
else D[2].setMoveLeft(true);
if (D[2].getMoveUp()==true){
if ( (D[2].getTy()>=D[i].getTy()-1.0f) && (D[2].getTy()<=D[i].getTy()) ){
if (D[2].getMoveUp()== true) D[2].setMoveUp(false);
else D[2].setMoveUp(true);
}else{
if ( (D[2].getTy()-1<=D[i].getTy()) && (D[2].getTy()-1>=D[i].getTy()-1) ){
if (D[2].getMoveUp()== true) D[2].setMoveUp(false);
else D[2].setMoveUp(true);
}//end of if i!=2
//end of loop for i
/** void display() Draw to the canvas. */
// Purely a Java thing. Simple calls DrawGLScene once GL is Initialized
public void display()
for(int i=0;i<3;i++){
glj.gljMakeCurrent(); //Ensure GL is initialised correctly
DrawGLScene();
glj.gljSwap(); //Swap buffers
glj.gljFree(); // release GL
// Key Listener events
public void keyTyped(KeyEvent e){
public void keyPressed(KeyEvent e){
switch(e.getKeyCode())
//Kill app
case KeyEvent.VK_ESCAPE:
System.exit(0);
break;
default :
if(e.getKeyCode()<250) // only interested in first 250 key codes, are there more?
keys[e.getKeyCode()]=true;
break;
public void keyReleased(KeyEvent e){
if(e.getKeyCode()<250) // only interested in first 250 key codes, are there more?
keys[e.getKeyCode()]=false;
// mouse listener events
public void mouseEntered( MouseEvent evt )
Component comp = evt.getComponent();
if( comp.equals(this ) )
//requestFocus();
public void mouseExited( MouseEvent evt ){
public void mousePressed( MouseEvent evt ){
public void mouseReleased( MouseEvent evt ){
public void mouseClicked( MouseEvent evt )
Component comp = evt.getComponent();
if( comp.equals(this ) )
requestFocus();
* Dice.java
* Created on 08 February 2007, 22:26
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package longgong;
import java.net.URL;
import gl4java.GLContext;
import gl4java.awt.GLAnimCanvas;
import gl4java.utils.textures.*;
* @author welcome
public class Dice {
GLAnimCanvas glCanvas ;
URL codeBase;
int[]texture1 = new int[1]; //Storage for one texture ( NEW )
int[]texture2 = new int[1]; //Storage for one texture ( NEW )
int[]texture3 = new int[1]; //Storage for one texture ( NEW )
int[]texture4 = new int[1]; //Storage for one texture ( NEW )
int[]texture5 = new int[1]; //Storage for one texture ( NEW )
int[]texture6 = new int[1]; //Storage for one texture ( NEW )
float rx;
float ry;
float rz;
float tx;
float ty;
float tz;
float speed;
boolean txMoveLeft;
boolean tyMoveUp;
boolean tzMoveFront;
/** Creates a new instance of Dice */
public Dice(GLAnimCanvas g) {
glCanvas = g;
if(!LoadGLTexture("c:\\java\\images\\one.png",texture1)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\two.png",texture2)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\three.png",texture3)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\four.png",texture4)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\five.png",texture5)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\six.png",texture6)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
txMoveLeft = true;
tyMoveUp = true;
public boolean inCircleBoundaries(float x, float y, float radius)
float r;
r = (float)Math.sqrt((x*x) + (y*y));
if (r <= radius)
return true;
else
return false;
public void setCoordinates(float corRx,float corRy,float corRz,float corTx,float corTy,float corTz){
rx = corRx;
ry = corRy;
rz = corRz;
tx = corTx;
ty = corTy;
tz = corTz;
public void getRandomDice(){
int num = (int)(Math.random() * 6);
if (num==1){
rx=0.0f;
ry=0.0f;
rz=0.0f;
else if (num==2){
rx=90.0f;
ry=0.0f;
rz=0.0f;
else if (num==3){
rx=0.0f;
ry=-90.0f;
rz=0.0f;
else if (num==4){
rx=0.0f;
ry=90.0f;
rz=0.0f;
else if (num==5){
rx=-90.0f;
ry=0.0f;
rz=0.0f;
else{
rx=180.0f;
ry=0.0f;
rz=0.0f;
public float getTx(){
return tx+0.5f;
public float getTy(){
return ty+0.5f;
public float getTz(){
return tz+0.5f;
public void setTz(float z){
tz=z;
public boolean getMoveLeft(){
return txMoveLeft;
public boolean getMoveUp(){
return tyMoveUp;
public void setMoveLeft(boolean m){
txMoveLeft = m;
public void setMoveUp(boolean m){
tyMoveUp = m;
public void startDiceMovement(){
if (txMoveLeft==true) {
tx+=speed;
else {
tx-=speed;
if (tyMoveUp==true) {
ty+=speed;
else {
ty-=speed;
ry+=(speed*4);
rx+=(speed*4);
//rz+=(speed*2);
//tx+=speed;
//ty+=speed;
//tz+=speed;
if (inCircleBoundaries(tx,ty,3.5f)==false) {
if (tx>=3.0f) txMoveLeft = false;
if (tx<=-3.0f) txMoveLeft = true;
if (ty>=3.0f) tyMoveUp = false;
if (ty<=-3.0f) tyMoveUp = true;
public void setSpeed(float s){
speed = s;
public void drawDice(){
glCanvas.gl.glLoadIdentity(); // Reset The View
glCanvas.gl.glTranslatef(tx,ty,tz);
glCanvas.gl.glRotatef(rx,1.0f,0.0f,0.0f);
glCanvas.gl.glRotatef(ry,0.0f,1.0f,0.0f);
glCanvas.gl.glRotatef(rz,0.0f,0.0f,1.0f);
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture1[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Front Face
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, 1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture6[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Back Face
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, -1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture2[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Top Face
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, -1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture5[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Bottom Face
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, 1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture3[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Right face
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, 1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture4[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Left Face
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, -1.0f);
glCanvas.gl.glEnd();
public boolean LoadGLTexture(String fileName, int textureNumber[])
PngTextureLoader texLoader = new PngTextureLoader(glCanvas.gl, glCanvas.glu);
if(codeBase!=null)
texLoader.readTexture(codeBase, fileName);
else
texLoader.readTexture(fileName);
if(texLoader.isOk())
//Create Texture
glCanvas.gl.glGenTextures(1, textureNumber);
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, textureNumber[0]);
glCanvas.gl.glTexParameteri(glCanvas.gl.ill attach 4 files that needs to be
enhanced or debug for possible errors. i hate to break it to you, but even if you post this for the seventh time, finding and fixing errors in your code remains your task. -
Need help with my addressbook program
hi,
i need help with my program here. this one should works as:
- saves user input into a txt file
- displays name of the saved person on the jlist whenever i run the program
- displays info about the person when clicked via textboxes given by reading the txt file where the user inputs are
- should scroll when the list exceeds the listbox
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.JList;
import java.awt.event.ActionListener;
import java.io.*;
import javax.swing.event.*;
import java.io.FilterInputStream;
public class AddressList extends JPanel implements ActionListener
JTextField txt1 = new JTextField();
JTextField txt2 = new JTextField();
JTextField txt3 = new JTextField();
DefaultListModel mdl = new DefaultListModel();
JList list = new JList();
JScrollPane listScroller = new JScrollPane(list);
ListSelectionModel listSelectionModel;
File fob = new File("Address3.txt");
String name;
char[] chars;
public void ListDisplay()
try
RandomAccessFile rand = new RandomAccessFile(fob,"rw");
BufferedReader br = new BufferedReader(new FileReader("Address3.txt"));
if(fob.exists())
while((name = rand.readLine()) != null)
chars = name.toCharArray();
if(chars[0] == '*')
mdl.addElement(name);
list.setModel(mdl);
if(chars[0] == '#')
continue;
else
System.out.println("No such file..");
catch(IOException a)
System.out.println(a.getMessage());
public AddressList()
this.setLayout(null);
listSelectionModel = list.getSelectionModel();
listSelectionModel.addListSelectionListener(new ListInfo());
list.setBounds(10,40,330,270);
listScroller.setBounds(320,40,20,100);
add(list);
add(listScroller);
JLabel lbl4 = new JLabel("Name: ");
lbl4.setBounds(400,10,80,30);
add(lbl4);
JLabel lbl5 = new JLabel("Cellphone #: ");
lbl5.setBounds(400,50,80,30);
add(lbl5);
JLabel lbl6 = new JLabel("Address: ");
lbl6.setBounds(400,90,80,30);
add(lbl6);
JLabel lbl7 = new JLabel("List ");
lbl7.setBounds(10,10,100,30);
add(lbl7);
txt1.setBounds(480,10,200,30);
add(txt1);
txt2.setBounds(480,50,200,30);
add(txt2);
txt3.setBounds(480,90,200,30);
add(txt3);
JButton btn1 = new JButton("Add");
btn1.setBounds(480,130,100,30);
btn1.addActionListener(this);
btn1.setActionCommand("Add");
add(btn1);
JButton btn2 = new JButton("Save");
btn2.setBounds(480,170,100,30);
btn2.addActionListener(this);
btn2.setActionCommand("Save");
add(btn2);
JButton btn3 = new JButton("Cancel");
btn3.setBounds(480,210,100,30);
btn3.addActionListener(this);
btn3.setActionCommand("Cancel");
add(btn3);
JButton btn4 = new JButton("Close");
btn4.setBounds(480,250,100,30);
btn4.addActionListener(this);
btn4.setActionCommand("Close");
add(btn4);
public static void main(String[]args)
JFrame frm = new JFrame("Address List");
AddressList panel = new AddressList();
frm.getContentPane().add(panel,"Center");
frm.setSize(700,350);
frm.setVisible(true);
panel.ListDisplay();
public void actionPerformed(ActionEvent e)
String cmd;
cmd = e.getActionCommand();
if(cmd.equals("Add"))
txt1.setText("");
txt2.setText("");
txt3.setText("");
else if(cmd.equals("Save"))
mdl.addElement(txt1.getText());
list.setModel(mdl);
try
RandomAccessFile rand = new RandomAccessFile(fob,"rw");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
LineNumberReader line = new LineNumberReader(br);
if(fob.exists())
rand.seek(fob.length());
rand.writeBytes("* " + txt1.getText());
rand.writeBytes("\r\n" + "# " + txt2.getText());
rand.writeBytes("\r\n" + "# " + txt3.getText() + "\r\n");
else
System.out.println("No such file..");
txt1.setText("");
txt2.setText("");
txt3.setText("");
catch(IOException a)
System.out.println(a.getMessage());
else if(cmd.equals("Cancel"))
txt1.setText("");
txt2.setText("");
txt3.setText("");
else if(cmd.equals("Close"))
System.exit(0);
class ListInfo implements ListSelectionListener
public void valueChanged(ListSelectionEvent e)
ListSelectionModel lsm = (ListSelectionModel)e.getSource();
int minIndex = lsm.getMinSelectionIndex();
int maxIndex = lsm.getMaxSelectionIndex();
try //*this one should display the info of the person whenever i click the person's name at the list box via textbox.. but i cant seem to get it right since it always display the info of the first person inputed.. i tried to get the program to display them whenever it reads lines with * on them....
File fob = new File("Address3.txt");
RandomAccessFile rand = new RandomAccessFile(fob,"rw");
BufferedReader br = new BufferedReader(new FileReader("Address3.txt"));
LineNumberReader line = new LineNumberReader(br);
if(fob.exists())
for(int i = minIndex; i<=maxIndex; i++)
if(lsm.isSelectedIndex(i))
while((name = rand.readLine()) != null)
chars = name.toCharArray();
if(chars[0] == '#')
continue;
if(chars[0] == '*')
txt1.setText(rand.readLine());
txt2.setText(rand.readLine());
txt3.setText(rand.readLine());
else
System.out.println("No such file..");
catch(IOException a)
System.out.println(a.getMessage());
}the only problem now is about how it should display the right info about the person whenever i click its name on the list.. something about file reading or something, i just cant figure it out.
and also about how to make it scroll once it exceeds the list.. i cant make it work, maybe something about wrong declaration..
thanks in advance..
Edited by: syder on Mar 14, 2008 2:26 AMLike said before, do one thing at a time. At startup, something like:
//put all the content in a list
ArrayList<String> lines = new ArrayList<String>();
while(String line=rand.readLine()!=null) {
lines.add(line);
}If you follow the good advice to create a class to encapsulate the entries, you could populate a list of such entries like this:
static final int ENTRY_SIZE = 3;//you have 3 fields now, better to have a constant if that changes
ArrayList<Entry> entries = new ArrayList<Entry>();
for(int i=0; i<lines.size(); i+=ENTRY_SIZE) {
Entry entry = new Entry(lines.get(i), lines.get(i+1), lines.get(i+2);
entries.add(newEntry);
}You could also do both of the above in one run, but I think you will understand better what's happening if you do one thing at a time.
If you don't want to put the entries in an encapsulating class, you can still access this without looping:
int listStartIdx = <desired_entry_index>*ENTRY_SIZE;
String att1 = lines.get(listStartIdx).substring(1);
String att2 = lines.get(listStartIdx+1).substring(1);
String att3 = lines.get(listStartIdx+2).substring(1); -
Need help with method... wrote an addition program... have most of it
Writing an addition program... have most of it below. Need help in getting the program to work.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Ch10program2 extends JFrame implements ActionListener
private static final int FRAME_WIDTH = 750;
private static final int FRAME_HEIGHT = 150;
private static final int BUTTON_HEIGHT = 50;
private static final int BUTTON_WIDTH = 50;
private static final int BUTTON_Y_POSITION = 50;
private static final String EMPTY_STRING = "";
private int XbuttonPosition = 15;
private JButton[] button;
private String[] buttonLabels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "+", "=", "c"};
private JTextField mytextfield;
private int[] numberOne;
private int[] numberTwo;
private int[] sum;
private int numberCounter = 0;
private boolean adding = false;
public static void main (String[] args)
Ch10program2 frame = new Ch10program2 ();
frame.setVisible (true);
public Ch10program2 ()
Container contentPane = getContentPane ();
// set the frame properties
setSize (FRAME_WIDTH, FRAME_HEIGHT);
setLocation (200, 200);
setTitle ("Big Integer Adder");
setResizable (false);
//set the content pane properties
contentPane.setLayout (null);
//creating each button
button = new JButton [13];
for (int i = 0 ; i < button.length ; i++)
button = new JButton (buttonLabels [i]);
button [i].setBounds (XbuttonPosition, BUTTON_Y_POSITION, BUTTON_WIDTH, BUTTON_HEIGHT);
XbuttonPosition += 55;
button [i].setForeground (Color.blue);
if (i > 9)
button [i].setForeground (Color.red);
contentPane.add (button [i]);
button [i].addActionListener (this);
//set the arrays
numberOne = new int [50];
numberTwo = new int [50];
//set the needed textfield
mytextfield = new JTextField ("");
mytextfield.setBounds (10, 10, 720, 25);
mytextfield.setBorder (BorderFactory.createLoweredBevelBorder ());
mytextfield.setHorizontalAlignment (JTextField.RIGHT);
contentPane.add (mytextfield);
setDefaultCloseOperation (EXIT_ON_CLOSE);
public void actionPerformed (ActionEvent event)
JButton clickedButton = (JButton) event.getSource ();
String oldText = mytextfield.getText ();
if ((event.getActionCommand ()).equals ("+"))
mytextfield.setText (oldText + " + ");
adding = true;
numberCounter = 0;
else if ((event.getActionCommand ()).equals ("="))
mytextfield.setText (oldText + " = ");
addArrays ();
displayArray ();
else if ((event.getActionCommand ()).equals ("c"))
clearText ();
else if (adding == false)
mytextfield.setText (oldText + event.getActionCommand ());
if (numberCounter == 0)
numberOne [numberCounter] = Integer.parseInt (event.getActionCommand ());
else
for (int i = numberOne.length - 1 ; i > 0 ; i--)
numberOne [i] = numberOne [i - 1];
numberOne [0] = Integer.parseInt (event.getActionCommand ());
numberCounter++;
else
mytextfield.setText (oldText + event.getActionCommand ());
if (numberCounter == 0)
numberTwo [numberCounter] = Integer.parseInt (event.getActionCommand ());
else
for (int i = numberTwo.length - 1 ; i > 0 ; i--)
numberTwo [i] = numberTwo [i - 1];
numberTwo [0] = Integer.parseInt (event.getActionCommand ());
numberCounter++;
oldText = mytextfield.getText ();
public void addArrays ()
int temp = 0;
int carriedDigit = 0;
for (int i = 0 ; i < 50 ; i++)
temp = carriedDigit + numberOne [i] + numberTwo [i];
if (temp > 10)
sum [i] = (temp - 10);
carriedDigit = 1;
else
sum [i] = temp;
public void displayArray ()
private void clearText ()
mytextfield.setText (EMPTY_STRING);I don't know what you want to do
but i have taken your program to get the GUI then the logic is your's
You try solving it.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Ch10program2 extends JFrame implements ActionListener
private static final int FRAME_WIDTH = 750;
private static final int FRAME_HEIGHT = 150;
private static final int BUTTON_HEIGHT = 50;
private static final int BUTTON_WIDTH = 50;
private static final int BUTTON_Y_POSITION = 50;
private static final String EMPTY_STRING = "";
private int XbuttonPosition = 15;
private JButton[] button;
private String[] buttonLabels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "+", "=", "c"};
private JTextField mytextfield;
private int[] numberOne;
private int[] numberTwo;
private int[] sum;
private int numberCounter = 0;
private boolean adding = false;
public static void main (String[] args)
Ch10program2 frame = new Ch10program2 ();
frame.setVisible (true);
public Ch10program2 ()
Container contentPane = getContentPane ();
// set the frame properties
setSize (FRAME_WIDTH, FRAME_HEIGHT);
setLocation (200, 200);
setTitle ("Big Integer Adder");
setResizable (false);
//set the content pane properties
contentPane.setLayout (null);
//creating each button
button = new JButton [13];
for (int i = 0 ; i < button.length ; i++)
button[i] = new JButton (buttonLabels);
button[i].setBounds (XbuttonPosition, BUTTON_Y_POSITION, BUTTON_WIDTH, BUTTON_HEIGHT);
XbuttonPosition += 55;
button[i].setForeground (Color.blue);
if (i > 9)
button[i].setForeground (Color.red);
contentPane.add (button[i]);
button[i].addActionListener (this);
//set the arrays
numberOne = new int [50];
numberTwo = new int [50];
//set the needed textfield
mytextfield = new JTextField ("");
mytextfield.setBounds (10, 10, 720, 25);
mytextfield.setBorder (BorderFactory.createLoweredBevelBorder ());
mytextfield.setHorizontalAlignment (JTextField.RIGHT);
contentPane.add (mytextfield);
setDefaultCloseOperation (EXIT_ON_CLOSE);
public void actionPerformed (ActionEvent event)
JButton clickedButton = (JButton) event.getSource ();
String oldText = mytextfield.getText ();
if ((event.getActionCommand ()).equals ("+"))
mytextfield.setText (oldText + " + ");
adding = true;
numberCounter = 0;
else if ((event.getActionCommand ()).equals ("="))
mytextfield.setText (oldText + " = ");
addArrays ();
displayArray ();
else if ((event.getActionCommand ()).equals ("c"))
clearText ();
else if (adding == false)
mytextfield.setText (oldText + event.getActionCommand ());
if (numberCounter == 0)
numberOne [numberCounter] = Integer.parseInt (event.getActionCommand ());
else
for (int i = numberOne.length - 1 ; i > 0 ; i--)
numberOne[i] = numberOne [i - 1];
numberOne [0] = Integer.parseInt (event.getActionCommand ());
numberCounter++;
else
mytextfield.setText (oldText + event.getActionCommand ());
if (numberCounter == 0)
numberTwo [numberCounter] = Integer.parseInt (event.getActionCommand ());
else
for (int i = numberTwo.length - 1 ; i > 0 ; i--)
numberTwo[i] = numberTwo [i - 1];
numberTwo [0] = Integer.parseInt (event.getActionCommand ());
numberCounter++;
oldText = mytextfield.getText ();
public void addArrays ()
int temp = 0;
int carriedDigit = 0;
for (int i = 0 ; i < 50 ; i++)
temp = carriedDigit + numberOne[i] + numberTwo[i] ;
if (temp > 10)
sum[i] = (temp - 10);
carriedDigit = 1;
else
sum[i] = temp;
public void displayArray ()
private void clearText ()
mytextfield.setText (EMPTY_STRING);
All The Best -
Hi every one..
I need help in this class. I want to do a modification to the project AddGUI so that it will do subtraction, multiplication and division of two integre numbers, in addition to addition.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class GUIAddition extends JFrame {
private String output;
private int number1, number2, sum;
private JLabel number1Label, number2Label, sumLabel;
private JTextField number1TextField, number2TextField;
private JButton addButton, exitButton;
private JTextArea textArea;
public GUIAddition() {
super("Sum of Two Integer Numbers");
// Create an instance of inner class ActionEventHandler
ActionEventHandler handler = new ActionEventHandler();
// set up GUI
Container container = getContentPane();
container.setLayout( new FlowLayout() );
// set up Label Fields and Text Fields for number1
number1Label = new JLabel( "Number1" );
number1TextField = new JTextField( 10 );
number1TextField.addActionListener( handler );
container.add( number1TextField );
container.add( number1Label );
// for number2
number2Label = new JLabel( "Number2" );
number2TextField = new JTextField( 10 );
number2TextField.addActionListener( handler );
container.add( number2TextField );
container.add( number2Label );
// for sum
sumLabel = new JLabel( "Sum" );
textArea = new JTextArea( 1,10 ); // only output, no addAction
textArea.setEditable( false );
container.add( textArea );
container.add( sumLabel );
// set up Add Button
addButton = new JButton( "Add" );
addButton.addActionListener( handler );
container.add( addButton );
// set up Exit Button
exitButton = new JButton( "Exit" );
exitButton.addActionListener( handler );
container.add( exitButton );
}// end constructor
// Display The Sum of the Two Numbers in displayfield
public void displayAddition() {
textArea.setText(output);
}// end display method
public static void main( String args[] ) {
GUIAddition window = new GUIAddition();
window.setSize(500, 100);
window.setVisible( true );
}// end main
private class ActionEventHandler implements ActionListener {
public void actionPerformed(ActionEvent event) {
// process Text Fields: number1 and number2 as well as Add Button events
if (event.getSource() == number1TextField)
number1 = Integer.parseInt(event.getActionCommand());
else if (event.getSource() == number2TextField)
number2 = Integer.parseInt(event.getActionCommand());
else if (event.getSource() == addButton){
sum = number1 + number2;
output = "" + sum;
System.out.println("The Result of adding number1: " + number1 +
" and number2: " + number2 + " is: " + sum);
// process Exit Button event
else if (event.getSource() == exitButton) System.exit(0);
// Display Information
displayAddition();
} // end method actionPerformed
}// end inner class ActionEventHandler
} // end Class GUIAdditionI try to do it for subtraction, but it didn't work correctly.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class GUIAddition extends JFrame {
private String output;
private int number1, number2, sum, sub;
private JLabel number1Label, number2Label, sumLabel, subLabel;
private JTextField number1TextField, number2TextField;
private JButton addButton, subButton, exitButton;
private JTextArea textArea;
public GUIAddition() {
super("Sum of Two Integer Numbers");
// Create an instance of inner class ActionEventHandler
ActionEventHandler handler = new ActionEventHandler();
// set up GUI
Container container = getContentPane();
container.setLayout( new FlowLayout() );
// set up Label Fields and Text Fields for number1
number1Label = new JLabel( "Number1" );
number1TextField = new JTextField( 10 );
number1TextField.addActionListener( handler );
container.add( number1TextField );
container.add( number1Label );
// for number2
number2Label = new JLabel( "Number2" );
number2TextField = new JTextField( 10 );
number2TextField.addActionListener( handler );
container.add( number2TextField );
container.add( number2Label );
// for sum
sumLabel = new JLabel( "Sum" );
textArea = new JTextArea( 1,10 ); // only output, no addAction
textArea.setEditable( false );
container.add( textArea );
container.add( sumLabel );
// for sub
subLabel = new JLabel( "Subtraction" );
textArea = new JTextArea( 1,10 ); // only output, no addAction
textArea.setEditable( false );
container.add( textArea );
container.add( subLabel );
// set up Add Button
addButton = new JButton( "Add" );
addButton.addActionListener( handler );
container.add( addButton );
// set up Sub Button
subButton = new JButton( "Subtraction" );
subButton.addActionListener( handler );
container.add( subButton );
// set up Exit Button
exitButton = new JButton( "Exit" );
exitButton.addActionListener( handler );
container.add( exitButton );
}// end constructor
// Display The Sum of the Two Numbers in displayfield
public void displayAddition() {
textArea.setText(output);
}// end display method
public static void main( String args[] ) {
GUIAddition window = new GUIAddition();
window.setSize(500, 100);
window.setVisible( true );
}// end main
private class ActionEventHandler implements ActionListener {
public void actionPerformed(ActionEvent event) {
// process Text Fields: number1 and number2 as well as Add Button events
if (event.getSource() == number1TextField)
number1 = Integer.parseInt(event.getActionCommand());
else if (event.getSource() == number2TextField)
number2 = Integer.parseInt(event.getActionCommand());
else if (event.getSource() == addButton){
sum = number1 + number2;
output = "" + sum;
System.out.println("The Result of adding number1: " + number1 +
" and number2: " + number2 + " is: " + sum);
else if (event.getSource() == subButton){
sub = number1 - number2;
output = "" + sub;
System.out.println("The Result of subtraction number1: " + number1 +
" and number2: " + number2 + " is: " + sub);
// process Exit Button event
else if (event.getSource() == exitButton) System.exit(0);
// Display Information
displayAddition();
} // end method actionPerformed
}// end inner class ActionEventHandler
} // end Class GUIAddition -
wazap guys ? long time not 2 see U :)
i need help , this application that will follow is supposed to count the words lengths
i.e if typed "I am poprage" the program will output :
the word length the occurence
1 1
2 1
3
4
5
6
7 1
compile it & u will understand it.
the problem is that it makes a table for each damen word
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class Application2 extends JFrame{
private JLabel label;
private JTextField field;
private JTextArea area;
private JScrollPane scroll;
private int count;
public Application2(){
super("Application 2 / Word Length");
Container c = getContentPane();
c.setLayout(new FlowLayout());
label = new JLabel("Enter The Text Here");
c.add(label);
field = new JTextField(30);
field.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
StringTokenizer s = new StringTokenizer(e.getActionCommand());
count = s.countTokens();
while(s.hasMoreTokens()){
count--;
pop(s.nextToken());
c.add(field);
area = new JTextArea(10,30);
area.setEditable(false);
c.add(area);
scroll = new JScrollPane(area);
c.add(scroll);
setSize(500,500);
show();
public void pop (String s){
String poprage = "";
int count1 = 0;
int count2 = 0;
int count3 = 0;
int count4 = 0;
int count5 = 0;
int count6 = 0;
int count7 = 0;
int count8 = 0;
int count9 = 0;
int count10 = 0;
int count11 = 0;
int count12 = 0;
int count13 = 0;
int count14 = 0;
int count15 = 0;
int count16 = 0;
int count17 = 0;
int count18 = 0;
int count19 = 0;
int count20 = 0;
int count21 = 0;
int count22 = 0;
int count23 = 0;
int count24 = 0;
int count25 = 0;
for(int i = 0; i < s.length(); i++){
if(s.length() == 1) count1 += 1;
else if(s.length() == 2) count2 += 1;
else if(s.length() == 3) count3 += 1;
else if(s.length() == 4) count4 += 1;
else if(s.length() == 5) count5 += 1;
else if(s.length() == 6) count6 += 1;
else if(s.length() == 7) count7 += 1;
else if(s.length() == 8) count8 += 1;
else if(s.length() == 9) count9 += 1;
else if(s.length() == 10) count10 += 1;
else if(s.length() == 11) count11 += 1;
else if(s.length() == 12) count12 += 1;
else if(s.length() == 13) count13 += 1;
else if(s.length() == 14) count14 += 1;
else if(s.length() == 15) count15 += 1;
else if(s.length() == 16) count16 += 1;
else if(s.length() == 17) count17 += 1;
else if(s.length() == 18) count18 += 1;
else if(s.length() == 19) count19 += 1;
else if(s.length() == 20) count20 += 1;
else if(s.length() == 21) count21 += 1;
else if(s.length() == 22) count22 += 1;
else if(s.length() == 23) count23 += 1;
else if(s.length() == 24) count24 += 1;
else if(s.length() == 25) count25 += 1;
poprage += "The Length\t"+"The Occurence\n"+
"1\t"+count1+"\n"+
"2\t"+count2+"\n"+
"3\t"+count3+"\n"+
"4\t"+count4+"\n"+
"5\t"+count5+"\n"+
"6\t"+count6+"\n"+
"7\t"+count7+"\n"+
"8\t"+count8+"\n"+
"9\t"+count9+"\n"+
"10\t"+count10+"\n"+
"11\t"+count11+"\n"+
"12\t"+count12+"\n"+
"13\t"+count13+"\n"+
"14\t"+count14+"\n"+
"15\t"+count15+"\n"+
"16\t"+count16+"\n"+
"17\t"+count17+"\n"+
"18\t"+count18+"\n"+
"19\t"+count19+"\n"+
"20\t"+count20+"\n"+
"21\t"+count21+"\n"+
"22\t"+count22+"\n"+
"23\t"+count23+"\n"+
"24\t"+count24+"\n"+
"25\t"+count25+"\n";
area.append(poprage);
public static void main (String ar[]){
Application2 a = new Application2();
a.addWindowListener(
new WindowAdapter(){
public void windowClosing( WindowEvent e ){
System.exit(0);
can any one fix it ???????
REGARDS.Okay, so I took a look at it, where you are having the problem is that your pop() method not only updated the count variable, but then displays the result each time you call it. and since you call it in the loop, guess what it will give you a "table" for each "damen word"...
Any way, I was bored enough to "fix" the program and included comments as to what I did and the relative "why"...
So here goes...
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class Application2 extends JFrame{
private JLabel label;
private JTextField field;
private JTextArea area;
private JScrollPane scroll;
private int count;
// moved these up here so that all methods in this class
// can see and modify them, and more importantly so that they would not go
// out of scope and end up zero'd out before we display the values
// in the "table", once that done, then we can zero them out.
// although an array would be better and easier to use... -MaxxDmg...
private int count1 = 0;private int count2 = 0;
private int count3 = 0;private int count4 = 0;
private int count5 = 0;private int count6 = 0;
private int count7 = 0;private int count8 = 0;
private int count9 = 0;private int count10 = 0;
private int count11 = 0;private int count12 = 0;
private int count13 = 0;private int count14 = 0;
private int count15 = 0;private int count16 = 0;
private int count17 = 0;private int count18 = 0;
private int count19 = 0;private int count20 = 0;
private int count21 = 0;private int count22 = 0;
private int count23 = 0;private int count24 = 0;
private int count25 = 0;
// end move int count variable declarations - MaxxDmg...
public Application2(){
super("Application 2 / Word Length");
Container c = getContentPane();
c.setLayout(new FlowLayout());
label = new JLabel("Enter The Text Here");
c.add(label);
field = new JTextField(30);
field.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
String poprage = ""; // move this here, once pop() loop is done, then this string
// will be constructed and displayed - MaxxDmg...
StringTokenizer s = new StringTokenizer(e.getActionCommand());
count = s.countTokens();
while(s.hasMoreTokens()){ // this is the "pop() loop" since it calls pop() to count the words - MaxxDmg...
count--;
pop(s.nextToken()); // runs pop which only increments the count variable as needed - MaxxDmg...
}// end "pop() loop" - MaxxDmg...
// string poprage constructed one pop() loop is done to display the proper results - MaxxDmg...
poprage += "The Length\t"+"The Occurence\n"+"1\t"+count1+"\n"+
"2\t"+count2+"\n" + "3\t"+count3+"\n" + "4\t"+count4+"\n" +
"5\t"+count5+"\n" + "6\t"+count6+"\n" + "7\t"+count7+"\n" +
"8\t"+count8+"\n" + "9\t"+count9+"\n" + "10\t"+count10+"\n" +
"11\t"+count11+"\n" + "12\t"+count12+"\n" + "13\t"+count13+"\n" +
"14\t"+count14+"\n" + "15\t"+count15+"\n" + "16\t"+count16+"\n" +
"17\t"+count17+"\n" + "18\t"+count18+"\n" + "19\t"+count19+"\n" +
"20\t"+count20+"\n" + "21\t"+count21+"\n" + "22\t"+count22+"\n"+
"23\t"+count23+"\n" + "24\t"+count24+"\n" + "25\t"+count25+"\n";
area.append(poprage);
// end string construction and area update... - MaxxDmg...
// all int count variable set to 0 for next usage - MaxxDmg...
count = 0;
count1 = 0;count2 = 0;count3 = 0;count4 = 0;count5 = 0;
count6 = 0;count7 = 0;count8 = 0;count9 = 0;count10 = 0;
count11 = 0;count12 = 0;count13 = 0;count14 = 0;count15 = 0;
count16 = 0;count17 = 0;count18 = 0;count19 = 0;count20 = 0;
count21 = 0;count22 = 0;count23 = 0;count24 = 0;count25 = 0;
// end count variable reset... - MaxxDmg...
c.add(field);
area = new JTextArea(10,30);
area.setEditable(false);
c.add(area);
scroll = new JScrollPane(area);
c.add(scroll);
setSize(500,500);
show();
public void pop (String s){
// now all this method does is increment the count variables - MaxxDmg...
// which will eliminate the "making a table" for each "damen word" - MaxxDmg...
if(s.length() == 1) count1 += 1;
else if(s.length() == 2) count2 += 1;
else if(s.length() == 3) count3 += 1;
else if(s.length() == 4) count4 += 1;
else if(s.length() == 5) count5 += 1;
else if(s.length() == 6) count6 += 1;
else if(s.length() == 7) count7 += 1;
else if(s.length() == 8) count8 += 1;
else if(s.length() == 9) count9 += 1;
else if(s.length() == 10) count10 += 1;
else if(s.length() == 11) count11 += 1;
else if(s.length() == 12) count12 += 1;
else if(s.length() == 13) count13 += 1;
else if(s.length() == 14) count14 += 1;
else if(s.length() == 15) count15 += 1;
else if(s.length() == 16) count16 += 1;
else if(s.length() == 17) count17 += 1;
else if(s.length() == 18) count18 += 1;
else if(s.length() == 19) count19 += 1;
else if(s.length() == 20) count20 += 1;
else if(s.length() == 21) count21 += 1;
else if(s.length() == 22) count22 += 1;
else if(s.length() == 23) count23 += 1;
else if(s.length() == 24) count24 += 1;
else if(s.length() == 25) count25 += 1;
}// end modified pop() method - MaxxDmg...
public static void main (String ar[]){
Application2 a = new Application2();
a.addWindowListener(
new WindowAdapter(){
public void windowClosing( WindowEvent e ){
System.exit(0);
}So read the comments, look at the code and compare it to the original. You will see why the original did not give you the results you wanted, while the fixed version will...
- MaxxDmg...
- ' He who never sleeps... ' -
Need Help with MemoSaver2 with pop up and reverse method
I am working on this program and need help bad. I cant get the pop up work. I know I have the JOption method wrong and I also need my reverse button to print in reverse. I keep getting errors with these portions.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MemoSaver2 extends JFrame implements ActionListener
public static final int WIDTH = 700;
public static final int HEIGHT = 300;
public static final int LINES = 10;
public static final int CHAR_PER_LINE = 40;
private JTextArea theText;
private String memo1 = "No Memo 1.";
private String memo2 = "No Memo 2.";
private String memo3 = "No Memo 3.";
private String reverse = "Reverse";
public MemoSaver2()
setSize(WIDTH, HEIGHT);
WindowDestroyer listener = new WindowDestroyer();
addWindowListener(listener);
setTitle("Memo Saver 2");
Container contentPane = getContentPane();
contentPane.setLayout(new BorderLayout());
JPanel buttonPanel = new JPanel();
buttonPanel.setBackground(Color.white);
buttonPanel.setLayout(new GridLayout(3,3));
JButton memo1Button = new JButton("Save Memo 1");
memo1Button.addActionListener(this);
buttonPanel.add(memo1Button);
JButton memo2Button = new JButton("Save Memo 2");
memo2Button.addActionListener(this);
buttonPanel.add(memo2Button);
JButton clearButton = new JButton("Clear");
clearButton.addActionListener(this);
buttonPanel.add(clearButton);
JButton get1Button = new JButton("Get Memo 1");
get1Button.addActionListener(this);
buttonPanel.add(get1Button);
JButton get2Button = new JButton("Get Memo 2");
get2Button.addActionListener(this);
buttonPanel.add(get2Button);
JButton exitButton = new JButton("Exit");
exitButton.addActionListener(this);
buttonPanel.add(exitButton);
JButton reverseButton = new JButton("Reverse");
reverseButton.addActionListener(this);
buttonPanel.add(reverseButton);
JButton myNameButton = new JButton("My Name");
myNameButton.addActionListener(this);
buttonPanel.add(myNameButton);
JButton myInfoButton = new JButton("My Info");
myInfoButton.addActionListener(this);
buttonPanel.add(myInfoButton);
contentPane.add(buttonPanel, BorderLayout.SOUTH);
JPanel textPanel = new JPanel();
textPanel.setBackground(Color.blue);
theText = new JTextArea(LINES, CHAR_PER_LINE);
theText.setBackground(Color.white);
theText.setLineWrap(true);
textPanel.add(theText);
contentPane.add(textPanel, BorderLayout.CENTER);
public void actionPerformed(ActionEvent e)
String actionCommand = e.getActionCommand();
if (actionCommand.equals("Save Memo 1"))
memo1 = theText.getText();
theText.setText("Memo 1 saved.");
else if (actionCommand.equals("Save Memo 2"))
memo2 = theText.getText();
theText.setText("Memo 2 saved.");
else if (actionCommand.equals("Clear"))
theText.setText("");
else if (actionCommand.equals("Get Memo 1"))
theText.setText(memo1);
else if (actionCommand.equals("Get Memo 2"))
theText.setText(memo2);
else if (actionCommand.equals("Exit"))
System.exit(0);
else if(actionCommand.equals(" Get reverse"))
memo3 = theText.getText();
theText.setText("");
else if(actionCommand.equals("Get My Name"))
String memo4;
String=JOption.showInputDialog("Kim Clark");
/*theText = theText.getText();*/
else if(actionCommand.equals("My Info"))
theText.setText("Kim Clark [email protected]");
else
theText.setText("Error in memo interface");
private String reverse(String reverseMe);
StringBufffer sb = new StringBuffer(reverseMe);
return sb.reverse().toString();
public static void main(String[] args)
MemoSaver2 guiMemo = new MemoSaver2();
guiMemo.setVisible(true);
public class WindowDestroyer extends WindowAdapter
public void windowClosing(WindowEvent e)
System.exit(0);
}... I keep getting errors with these portions.Darn, that's a shame. Good luck with that. In the meantime, you might want to consider asking specific questions other than just plopping your code here and sitting idly hoping someone just fixes it for you.
-
I need help getting my program to run a different java program through the command prompt using the runtime.exec() method. This is my code so far:
import javax.swing.JOptionPane;
import javax.swing.JDialog;
import javax.swing.JButton;
import javax.swing.JRadioButton;
import javax.swing.ButtonGroup;
import javax.swing.JLabel;
import javax.swing.ImageIcon;
import javax.swing.BoxLayout;
import javax.swing.Box;
import javax.swing.BorderFactory;
import javax.swing.border.Border;
import javax.swing.JTabbedPane;
import javax.swing.JPanel;
import javax.swing.JFrame;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.*;
//import java.Original.*;
//import java.Turtle.*;
//import jav.Turtle.galapagos.*;
public class JavaMenu extends JPanel
JFrame frame;
JLabel label;
JButton select;
String labDescription = "Java labs created in class.";
String turtleDescription = "Turtle labs created in class";
String creationDescription = "Java programs created on my own.";
public JavaMenu(JFrame frame)
super(new BorderLayout());
JPanel lab = labDialog();
//JPanel turtle = turtleDialog();
//JPanel creation = creationDialog();
label = new JLabel("Click Select Program to run the program.", JLabel.CENTER);
this.frame = frame;
Border padding = BorderFactory.createEmptyBorder(20,20,5,20);
lab.setBorder(padding);
//turtle.setBorder(padding);
//creation.setBorder(padding);
JTabbedPane tab = new JTabbedPane();
tab.addTab("Java Labs", null, lab, labDescription);
//tab.addTab("Turtle Labs", null, turtle, turtleDescription);
//tab.addTab("Java Programs", null, creation, creationDescription);
add(tab, BorderLayout.CENTER);
add(label, BorderLayout.PAGE_END);
label.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
void setLabel(String newText)
label.setText(newText);
protected static ImageIcon createImageIcon(String path)
java.net.URL imgURL = JavaMenu.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
private JPanel labDialog()
final int numButtons = 25;
JRadioButton[] javalabs = new JRadioButton[numButtons];
final ButtonGroup group = new ButtonGroup();
select = null;
final String messageCommand2 = "Lab 02";
final String messageCommand3 = "Lab 03";
final String messageCommand4 = "Lab 04";
final String messageCommand41 = "Lab 04 Extra Credit 1";
final String messageCommand42 = "Lab 04 Extra Credit 2";
final String messageCommand5 = "Lab 05";
final String messageCommand51 = "Lab 05 Extra Credit";
final String messageCommand6 = "Lab 06";
final String messageCommand6b = "Lab 06";
final String messageCommand7 = "Lab 07";
final String messageCommand71 = "Lab 07 Extra Credit";
final String messageCommand8 = "Lab 08";
final String messageCommand8b = "Lab 08";
final String messageCommand81 = "Lab 08 Extra Credit";
final String messageCommand9 = "Lab 09";
final String messageCommand9b = "Lab 09";
final String messageCommand91 = "Lab 09 Extra Credit 1";
final String messageCommand92 = "Lab 09 Extra Credit 2";
final String messageCommand93 = "Lab 09 Extra Credit 3";
final String messageCommand9a = "Lab 09 American Flag";
final String messageCommand9t = "Lab 09 Texas Flag";
final String messageCommand0 = "Lab 10";
final String messageCommand0b = "Lab 10 Hi Lo Game";
final String messageCommand01 = "Lab 10 Extra Credit 1";
final String messageCommand02 = "Lab 10 Extra Credit 2";
javalabs[0] = new JRadioButton("Lab 02 100 Point Version");
javalabs[0].setActionCommand(messageCommand2);
javalabs[1] = new JRadioButton("Lab 03 100 Point Version");
javalabs[1].setActionCommand(messageCommand3);
javalabs[2] = new JRadioButton("Lab 04 100 Point Version");
javalabs[2].setActionCommand(messageCommand4);
javalabs[3] = new JRadioButton("Lab 04 Extra Credit 1");
javalabs[3].setActionCommand(messageCommand41);
javalabs[4] = new JRadioButton("Lab 04 Extra Credit 2");
javalabs[4].setActionCommand(messageCommand42);
javalabs[5] = new JRadioButton("Lab 05 100 Point Version");
javalabs[5].setActionCommand(messageCommand5);
javalabs[6] = new JRadioButton("Lab 05 Extra Credit");
javalabs[6].setActionCommand(messageCommand51);
javalabs[7] = new JRadioButton("Lab 06A 100 Point Version");
javalabs[7].setActionCommand(messageCommand6);
javalabs[8] = new JRadioButton("Lab 06B 100 Point Version");
javalabs[8].setActionCommand(messageCommand6b);
javalabs[9] = new JRadioButton("Lab 07 100 Point Version");
javalabs[9].setActionCommand(messageCommand7);
javalabs[10] = new JRadioButton("Lab 07 Extra Credit");
javalabs[10].setActionCommand(messageCommand71);
javalabs[11] = new JRadioButton("Lab 08A 100 Point Version");
javalabs[11].setActionCommand(messageCommand8);
javalabs[12] = new JRadioButton("Lab 08B 100 Point Version");
javalabs[12].setActionCommand(messageCommand8b);
javalabs[13] = new JRadioButton("Lab 08 Extra Credit");
javalabs[13].setActionCommand(messageCommand81);
javalabs[14] = new JRadioButton("Lab 09A 100 Point Version");
javalabs[14].setActionCommand(messageCommand9);
javalabs[15] = new JRadioButton("Lab 09B 100 Point Version");
javalabs[15].setActionCommand(messageCommand9b);
javalabs[16] = new JRadioButton("Lab 09 Texas Flag");
javalabs[16].setActionCommand(messageCommand9t);
javalabs[17] = new JRadioButton("Lab 09 American Flag");
javalabs[17].setActionCommand(messageCommand9a);
javalabs[18] = new JRadioButton("Lab 09 Extra Credit 1");
javalabs[18].setActionCommand(messageCommand91);
javalabs[19] = new JRadioButton("Lab 09 Extra Credit 2");
javalabs[19].setActionCommand(messageCommand92);
javalabs[20] = new JRadioButton("Lab 09 Extra Credit 3");
javalabs[20].setActionCommand(messageCommand93);
javalabs[21] = new JRadioButton("Lab 10 A 100 Point Version");
javalabs[21].setActionCommand(messageCommand0);
javalabs[22] = new JRadioButton("Lab 10 B 100 Point Version");
javalabs[22].setActionCommand(messageCommand0b);
javalabs[23] = new JRadioButton("Lab 10 Extra Credit 1");
javalabs[23].setActionCommand(messageCommand01);
javalabs[24] = new JRadioButton("Lab 10 Extra Credit 2");
javalabs[24].setActionCommand(messageCommand02);
for (int k = 0; k < numButtons; k++)
group.add(javalabs[k]);
javalabs[0].setSelected(true);
select = new JButton("Select Program");
select.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
String command = group.getSelection().getActionCommand();
if (command == messageCommand2)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
try
Runtime.getRuntime().exec(new String[] {"cmd", "set classpath=D:/Documents and Settings/Yinon Michaeli/My Documents/CS/java/Labs02", "path C:/j2sdk1.4.0/bin", "java Lab020"});
//File file = new File("java/Labs02");
//Runtime.getRuntime().exec(new String[] {"rundll32", "url.dll,FileProtocolHandler","file:///" + file.getAbsolutePath()});
catch (Exception a)
JOptionPane.showMessageDialog(frame, "Error: Exception.", "Error", JOptionPane.ERROR_MESSAGE);
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand3)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand4)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand41)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand42)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand5)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand51)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand6)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand6b)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand7)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand71)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand8)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand8b)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand81)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand9)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand91)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand9t)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand9a)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand9b)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand92)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand93)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand0)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand0b)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand01)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
if (command == messageCommand02)
int confirm = JOptionPane.showConfirmDialog(frame, "You are about to run the program, o.k.?", "Confirmation", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (confirm == JOptionPane.YES_OPTION)
setLabel("Awesome!");
else if(confirm == JOptionPane.NO_OPTION)
setLabel("You've got to be kidding!");
return;
return create2ColPane(labDescription + ":", javalabs, select);
private JPanel createPane(String description, JRadioButton[] radioButtons, JButton showButton)
int numChoices = radioButtons.length;
JPanel box = new JPanel();
JLabel label = new JLabel(description);
box.setLayout(new BoxLayout(box, BoxLayout.PAGE_AXIS));
box.add(label);
for (int k = 0; k < numChoices; k++)
box.add(radioButtons[k]);
JPanel pane = new JPanel(new BorderLayout());
pane.add(box, BorderLayout.PAGE_START);
pane.add(showButton, BorderLayout.PAGE_END);
return pane;
private JPanel create2ColPane(String description, JRadioButton[] radioButtons, JButton showButton)
JLabel label = new JLabel(description);
int numPerColumn = radioButtons.length/2;
JPanel grid = new JPanel(new GridLayout(0, 2));
for (int k = 0; k < numPerColumn; k++)
grid.add(radioButtons[k]);
grid.add(radioButtons[k + numPerColumn]);
JPanel box = new JPanel();
box.setLayout(new BoxLayout(box, BoxLayout.PAGE_AXIS));
box.add(label);
grid.setAlignmentX(0.0f);
box.add(grid);
JPanel pane = new JPanel(new BorderLayout());
pane.add(box, BorderLayout.PAGE_START);
pane.add(showButton, BorderLayout.PAGE_END);
return pane;
private static void createAndShowGUI()
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame("Java Programs");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JavaMenu newContentPane = new JavaMenu(frame);
newContentPane.setOpaque(true);
frame.setContentPane(newContentPane);
frame.pack();
frame.setVisible(true);
public static void main(String[] args)
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}Why are you posting hundreds of lines of code not related to the problem??? 99.9% of the code you posted has absolutely nothing to do with using the Runtime.exec() method.
Create a simple test program that simply tries to invoke the Runtime.exec() method. Once you get that working, then you incoporate it into you real program. Don't clutter the forum with unnecessary code.
public class WindowsFileProtocolHandler
public static void main(String[] args)
throws Exception
String[] cmd = new String[4];
cmd[0] = "cmd.exe";
cmd[1] = "/C";
cmd[2] = "java";
cmd[3] = "YourClassHere";
Process process = Runtime.getRuntime().exec( cmd );
} -
Need help to develop Pythagoras theorem-
Hi i need help to develop proofs 2,3,4
of pythagoras theorems in java as demonstrations
These are applets can anyone help me with it or give me an idea of how to go about developing it -
the site is the following
http://www.uni-koeln.de/ew-fak/Mathe/Projekte/VisuPro/pythagoras/pythagoras.html
then double click on the screen to make it startPardon my ASCII art, but I've always liked the following, simple, geometric proof:
a b
---------------------------------------+
| | |
a| I | II |
| | |
---------------------------------------+
| | |
| | |
| | |
| | |
| | |
b| IV | III |
| | |
| | |
| | |
| | |
| | |
| | |
---------------------------------------+It almost goes without saying that I+II+III+IV == (a+b)^2, and II == IV == a*b,
I == a*a and III == b*b, showing that (a+b)^2 == a^2+a*b+a*b+b^2.
I hope the following sketch makes sense, stand back, ASCII art alert again: a b
---------------------------------------+
| . VI |
| . . |a
| V . |
| +
| |
| . |
b| . |
| |
| IX |
| . |
| . |b
| |
+ |
| . |
a| . . VII |
| VIII . |
---------------------------------------+
a bThe total area equals (a+b)^2 again and equals the sum of the smaller areas:
(a+b)^2 == V+VI+VII+VIII+IX. Let area IX be c^2 for whatever c may be.
V+VII == VI+VIII == a*b, so a^2+b^2+2*ab= c^2+2*a*b; IOW a^2+b^2 == c^2
Given this fundamental result, the others can easily be derived from this one,
or did I answer a question you didn't ask?
kind regards,
Jos -
I need help to find and open a job app that I exported, was able to fill out and sign and saved and now can't open it? What did I do wrong?
What file format did you export it to?
-
Need help to open audios attached in a PDF file
Hello
I just need help. I have ordered a reviewer online that has audios and texts in a pdf file. I was told to download the latest adobe reader on my computer. I have done the same thing on my ipad mini. I am not so technical with regards to these things. Therefore I need help. I can access the audios on my computer but not on my ipad.
I want to listen to audios with scripts or texts on them so i can listen to them when i am on the go. I was also informed that these files should work in any device. How come the audios doesnt work on my ipad.
Please help me on what to do.
ThanksAudio and video are not currently support on Adobe Reader. :-<
You need to buy a PDF reader that supports them. My suggestion is PDF Expert from Readdle ($US 9.99) -
Need help to open and look for file by name
Hi,
Im needing help to open a folder and look for a file (.txt) on this directory by his name ... The user ll type the partial name of file , and i need look for this file on the folder , and delete it ....
How can i look for the file by his name ?
Thx =)Hi ,
Sry ,, let me explain again ... I ll set the name of the files in the follow order ... Name_Serial_date_chanel.sxc ..
The user ll type the serial that he wants delete ...
I already figured out what i need guys .. thx for the help ^^
I used List Directory on advanced IO , to list all .. the Name is the same for all ... then i used Name_ concateneted with Serial(typed)* .. this command serial* ll list all serials equal the typed , in my case , ll exist only one , cuz its a count this serial .Then i pass the path to the delete , and its done !
Thx ^^ -
I need help, my ipod touch is not recognized by windows as a harddisk
i need help, my ipod touch is not recognized by windows like a memory card or a harddisk.
i would like to transfer the files from pc to my ipod touch without useing itunes.
as i see theres some people here that theires ipod touch are recongnzed as a digitl camra, mine is reconzied as nothing, some help plz.
Message was edited by: B0OmB0Om wrote:
ok but i still dont understed, only my itnes recongnize my ipod, when i go to " my cumputer, it dosent show up there, not even as a digital camra
Your Touch is working correctly. Currently, without unsupported third party hacks, the Touch has NO disc mode. It will only show up in iTunes.
how do i put programes and games in my ipod touch
Right now, you don't. The SDK is scheduled to be released in Feburary. Then developers will be able to write programs that will be loadable.
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