Jcheckbox problem...

hi all ..
i wrote an application in swing to generate a Html form dynamically and save to a folder,but in my application,i could only generate and save only one name from the listbox
Now all that is i need a checkbox besides each formname in the listbox and when i check the names and click generate button,multiple forms should be generated and saved....can any one please throw their knowledge on this and solve for me...
Thanks in advance
*********** here is my applicaiton
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.lang.*;
import java.sql.*;
public class MyAppFrame extends JFrame implements ActionListener{
     //-- class members
     JTextField jtf_Text;
     JButton jb_Button,G_Button;
     JList j1_List;
     JCheckBox Jb;
     Vector v;
private JScrollPane jpane;
Connection con;
Statement st,st1;
ResultSet rs,rs1;
final JFileChooser fc = new JFileChooser();
String temp = "";
String FormCode;
String SectionCode;
String SQL_sectionCode;
int i;
MyAppFrame(String title) {
     super(title);
     setSize(600,500);
     Container contentPane = getContentPane();
     contentPane.setLayout(new BorderLayout());
          JPanel panel = new JPanel();
     panel.setLayout(new FlowLayout());
          panel.add(new JLabel("Target Folder: "));
panel.add(jtf_Text = new JTextField(10));
jb_Button=new JButton("List");
jb_Button.addActionListener(this);
panel.add(jb_Button);
G_Button=new JButton("Generate");
panel.add(G_Button);
G_Button.addActionListener(this);
contentPane.add(panel,BorderLayout.NORTH);
panel = new JPanel();
          panel.setLayout(new GridLayout(2,1));
          panel.add(new JLabel("Selected Forms:"));
v=new Vector();
panel.add(j1_List = new JList());
//j1_List.setCellRenderer(new CheckListRenderer());
j1_List.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
j1_List.setBorder(new EmptyBorder(0,4,0,0));
// j1_List.addMouseListener(new MouseAdapter();
jpane = new JScrollPane();
jpane.getViewport().add(j1_List);
contentPane.add(panel, BorderLayout.CENTER);
panel.add(jpane);
          addWindowListener(new ExitListener());
     setVisible(true);
     public static void main(String[] args) {
     MyAppFrame maf = new MyAppFrame("Form Selection");
class ExitListener extends WindowAdapter{
public void windowClosing(WindowEvent event) {
System.exit(0);
private void con(JList ref){
     try{
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     con = DriverManager.getConnection("jdbc:odbc:satya");
     System.out.println("Set Connection");
     st=con.createStatement();
     st1=con.createStatement();
     String query="select form_name from form";
     System.out.println(query);
rs=st.executeQuery(query);
while(rs.next()){
          String name = rs.getString("form_name");
          v.add(name);
               j1_List.setListData(v);
               rs.close();
               catch(Exception e)
e.printStackTrace();
public void actionPerformed(ActionEvent e) {
String flag = e.getActionCommand();
if(flag.equals("List")){
this.con(j1_List);
jb_Button.setEnabled(false);
else
     try{
rs=st.executeQuery("select title,form_code from form where form_name='"+(String)j1_List.getSelectedValue()+"'");
     while(rs.next()){
     temp=rs.getString(1);
     FormCode=rs.getString(2);
rs.close();
}catch(Exception e3){System.out.println("here"+e3);}
     //rs=st.executeQuery("SELECT form_section_rel.form_code, section.section_title, form_section_rel.section_code, form_section_rel.order_id FROM section INNER JOIN form_section_rel ON section.section_code = form_section_rel.section_code where form_code = '" + FormCode + "'ORDER BY form_section_rel.form_code, form_section_rel.order_id");
     //rs1=st1.executeQuery("
     StringBuffer sb = new StringBuffer();
     sb.append("<html>");
     sb.append("<style>");
     sb.append("td{");
     sb.append("font-family : Arial,Helvetica,Sans-serif");
     sb.append("font-size : 12px");
     sb.append("color : #000000");
     sb.append("}");
     sb.append("</style>");
     sb.append("<HEAD><META HTTP-EQUIV=\"PRAGMA\" CONTENT=\"NO-CACHE\">");
     sb.append("<META HTTP-EQUIV=\"EXPIRES\" CONTENT=\"0\">");
     sb.append("<TITLE>Service Window Document </TITLE>");
     sb.append("<link rel=\"stylesheet\" href=\"main.css\">");
     sb.append("</HEAD><body bgcolor=\"#ffffff\" bgproperties=\"fixed\" text=\"#000000\" leftmargin=\"0\" topmargin=\"0\" margin width=\"0\" margin height=\"0\">");
sb.append("<TABLE width=\"100%\" border=\"0\" cell spacing=\"0\" cell padding=\"0\">");
     sb.append("<TR>");
     sb.append("<TD bgcolor=\"#ffffff\" align=\"top\">");
     sb.append("<TABLE align=\"left\" width=\"100%\">");
     sb.append("<TR align=\"top\">");
     sb.append("<the><font color=\"#ff0000\"></font></th>");
     sb.append("</TR>");
     sb.append("<TR align=\"top\">");
     sb.append("<TD row span=\"2\">");
     sb.append("<form name=\"sw_form\" method= post action=\"post\">");
     sb.append("<table border=0 cell spacing=\"0\" cell padding=\"0\" border color=\"#000000\" width=\"450\">");
     sb.append("<tr><td>");
     sb.append("<table border=0 cell spacing=\"0\" cell padding=\"0\" border color=\"#000000\" width=\"450\">");
     sb.append("<div align=\"center\">");
     sb.append("<tr>");
     sb.append("<td colspan=\"2\">");
     sb.append("<table border=\"1\" border color=\"#ffffff\" width=\"450\" cell spacing =\"0\" cell padding=\"3\">");
     sb.append("<tr>");
     sb.append("<th align=\"center\" bgcolor=\"#990000\"><font color=\"#ffcc00\"><b>"+temp+"</b></font></th>");
sb.append("</tr>");
     sb.append("</table>");
     sb.append("</td>");
     sb.append("</tr>");
     sb.append("</table>");
     sb.append("</td></tr>");
try{
rs=st.executeQuery("SELECT form_section_rel.form_code, section.section_title, form_section_rel.section_code, form_section_rel.order_id FROM section INNER JOIN form_section_rel ON section.section_code = form_section_rel.section_code where form_code = '" + FormCode + "'ORDER BY form_section_rel.form_code, form_section_rel.order_id");
rs.next();
do{
     sb.append("<table width=\"\">");
     sb.append("<tr><td bordercolor=\"#FFFFCC\"> </td></tr>");
     sb.append("<tr><td colspan=2 width=450>");
     sb.append("<fieldset><legend>");
     sb.append(rs.getString("section_title"));
     SectionCode = rs.getString("section_code");
     System.out.println(SectionCode);
     i=Integer.parseInt(SectionCode);
     sb.append("</legend>");
     sb.append("<table width=\"\">");
     sb.append("<tr><td bordercolor=\"#FFFFCC\"> </td></tr>");
     SQL_sectionCode ="SELECT SectionUI_Rel.SectionCode, SectionUI_Rel.OrderID, ui_components.* FROM ui_components INNER JOIN SectionUI_Rel ON ui_components.pid = SectionUI_Rel.ComponentID WHERE (((SectionUI_Rel.SectionCode)='"+SectionCode+"'))";
     rs1 =st1.executeQuery(SQL_sectionCode);
     while(rs1.next())
     String type=rs1.getString("ui_type");
     String val=rs1.getString("validationtype");
     int len=val.length();
     val=val.substring(3,len);
     String man=rs1.getString("mandatory");
     if(type.equals("textbox") && man.equals("1")){
     sb.append("<TR><TD>"+rs1.getString("labelname")+":</TD><TD><input type="+type+" name="+rs1.getString("fieldname")+" maxlength ="+val +"> <font color=\"#ff0000\">*</font></TD></TR>");
     else if(man.equals("0")) {
sb.append("<TR><TD>"+rs1.getString("labelname")+":</TD><TD><input type="+type+" name="+rs1.getString("fieldname")+" maxlength ="+val +"></TD></TR>");
else if(type.equals("dropdown")){
     sb.append("<TR><TD>"+rs1.getString("labelname")+":</TD><TD><select name="+type+" name="+rs1.getString("fieldname")+" </select></TD></TR>");
     else if(type.equals("static")){
     sb.append("<TR><TD>"+rs1.getString("labelname")+":</TD></TR>");
else if(type.equals("textarea")){
     sb.append("<TR><TD>"+rs1.getString("labelname")+":</TD><TD><textarea name="+rs1.getString("fieldname")+"></textarea></TD></TR>");
else if(type.equals("radio")){
     sb.append("<TR><TD>"+rs1.getString("labelname")+":</TD><TD><input type="+type+" name="+rs1.getString("fieldname")+"></TD></TR>");
else if(type.equals("checkbox")){
     sb.append("<TR><TD>"+rs1.getString("labelname")+":</TD><TD><input type="+type+" name="+rs1.getString("fieldname")+"></TD></TR>");
     sb.append("</table>");
     sb.append("</fieldset>");
     sb.append("</td></tr>");
     sb.append("</table>");
     } while( rs.next());
//sb.append("</form></body></html>");
}catch(Exception e4){
System.out.println(e4);
sb.append("</form></body></html>");
     String formname=(String)j1_List.getSelectedValue();
     String Dir=jtf_Text.getText();
     Dir +="/"+formname+".html";
     if(formname!=null && Dir !=null)
     try
     PrintWriter out= new PrintWriter(new FileWriter(Dir));
BufferedWriter br=new BufferedWriter(out);
     out.println(sb +"\n");
     out.close();
catch(Exception e1)
System.out.println(e1);
//jb_Button.setEnabled(false);

Huh?
1) If you want to use a method, you shouldn't override it
2) I don't see any reason to extend JCheckBox at all
3) What do you want your method to do that isSelected() doesn't already do?
4) if (box.isSelected()) suffices - no reason to compare true or false with true.
5) in this case "return box.isSelected()" suffices for the entire method.
I totally don't understand your problem. Updating the table can be done with or without a SwingWorker in the button's ActionListener.

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hi
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public class SECOND extends javax.swing.JFrame {
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initComponents();
setSize(500, 500);
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
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jTextField1 = new javax.swing.JTextField();
jCheckBox1 = new javax.swing.JCheckBox();
jButton1 = new javax.swing.JButton();
getContentPane().setLayout(null);
addWindowListener(new java.awt.event.WindowAdapter() {
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getContentPane().add(jTextField1);
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jButton1.setText("OK");
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jButton1.setBounds(100, 170, 90, 25);
pack();
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private javax.swing.JButton jButton1;
private javax.swing.JCheckBox jCheckBox1;
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Hi,
There's a number of ways to deal with this problem:
1. Write an anonymous class that overides paintComponent() in the JCheckBox.
2. Write an explicit class that extends JCheckBox and overrides paintComponent().
3. Write a class that extends BasicCheckBoxUI and overrides paintFocus(). Tell the UIManager to use this class for all JCheckBoxes.
Which method should you use?
1 if there is only one JCheckBox in the whole application that you wish to have this functionality. (I personally prefer not to use anonymous classes).
2 if there is a number of places you need this behaviour.
3 If you would like every instance of JCheckBox (even its subclasses) to have this functionality.
Hope that helps,
Muel.

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Hi,
I have a column of JCheckBox in a JTable. The JTable is only used to layout the controls(for lagecy reason). The JCheckBox has an item change listener attached. The problem is that OCCASIONALLY when the JCheckBox[i] was clicked, the debug in itemStateChanged show the source object was NOT JChechBox, it was JCheckBox[i+1] or JCheckBox[i-1]. In other word, it was the check box in the previous or next row changed state.
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Thanks

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http://forum.java.sun.com/thread.jsp?forum=57&thread=425540

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            System.out.println("true");
        } else{
            rvf.setAlwaysOnTop(false);
            System.out.println("false");
    }    Cheers,
J
Edited by: J.T on Jan 30, 2008 3:10 AM

sorry guys i'm just being stupid hehe
if(jRadioButtonMenuItem2.isSelected()){this should be jCheckBoxMenuItem2............. i'm sorry for posting a stupid question.
thanks anyways.
j.

Problem with JTable with JCheckBox as Header

Hi,
We have a JCheckBox as JTable Header. And respective data in that column also check boxes. For data check boxes, just i am sending Boolean object to object[][] data array. I am getting check Boxes as data components.
For Header, i have create a TableRender object which is returning JCheckBox.
Here my problem is,
1) When i select a Header check box, all the check boxes are getting selected.
2) Now we can reselect an data Check Box. When i reselect any data checkBox, Header CheckBox should be reselected. This is not happening. I was tried lot. Can any body give a solution to solve this problem.
Please .... Please ...
Thanks
Mohan

just call this method with null param on the JTable
table.setTableHeader(null);
cheers
krishna

JCheckBox rollback problem.. Urgent

Hi All,
I hv 2 JChkbox and 2JTextField. I want the prev state of the JCheckBox when the cancel button is clicked.
Ex:
I hv Maximum value and Minimumvalue checkboxes.
When the checkbox is not selected I'm enabling the corresponding textboxes.
The problem is, When i open my panel and the Chk boxes is selected and i deselect both the chkboxes. I enter min valu = 10 and max val = 5 and i click the cancel button. Now when i click the cancel the chkboxes sh go to prev state as they are when the panel is opened.
Is there any way to trace it out or any methods to it.
Kindly help me. As it is very Urgent.
Thnks in advance
SS

Isn't it a simple matter of remembering the state of the check boxes etc (in other words their 'model' data) when the dialog is popped up and then restoring them to that state if cancel is pressed?

Problem with Jcheckbox

Hi friends;
I need a small help. I want to change the property of a button based on the checkbox selected or deselected value.
My problem is :
if checkbox is selected then disable the button else
if checkbox is deselected then enable the button.
if(createLoginCKB.setEnabled(true)
button1.setEnabled(false)
else
button1.setEnabled(true)
But i am getting an error in the first line saying cannot convert void to boolean.
Please help
thanks
Ad

Use the isSelected() method to check if your checkbox is selected:
if( createLoginCKB.isSelected() )
...."How to Use Check Boxes":
http://java.sun.com/docs/books/tutorial/uiswing/components/button.html#checkbox

JCheckBox as nodes in JTree having problems with custom renderer and editor

Ok, let me give some background. I have an XML document that I am parsing and reading in as a JTree. Works fine.
Next, I have overwritten the DefaultTreeCellEditor to return a JCheckBox and in this implementation of the getTreeCellEditorComponent(), I actually tell the node that he is selected. Works great.
Next, I have overwritten the DefaultTreeCellRenderer to return a JCheckBox and in the implementation of the getTreeCellEditorComponenet, I actually check to see if the Node is selected in the tree based upon the isSelected state of the actual Tree Node set in the tree cell editor, and if so, I set the JCheckBox to selected(true).Works Great.
Now, here is the issue. If a node in the tree is selected that contains children, then I want all of the children of that node to also be selected. However, when I select a node with children only the selected node is changed, and then a few moments later, the system repaints the entire tree and ALL nodes int the tree are set to a selected state. Strange? Yes. Any ideas?? WONDERFUL!! :)
Here is the TreeCellEditor code:
public Component getTreeCellEditorComponent(JTree tree,
Object value,
boolean isSelected,
boolean expanded,
boolean leaf,
int row)
elementCheckBox_ = new JCheckBox();
Component result = null;
System.out.println("isSelected? Editor = " + isSelected);
TreePath newPath = tree.getPathForRow(row);
System.out.println("value = " + value.getClass().toString());
if(value instanceof IMarketTreeNodeElement)
if(isSelected)
if(((IMarketTreeNodeElement)value).isSelected())
((IMarketTreeNodeElement)value).setSelected(false);
else
((IMarketTreeNodeElement)value).setSelected(true);
elementCheckBox_.setSelected(isSelected);
return elementCheckBox_;
Here is the TreeCellRenderer code:
public Component getTreeCellRendererComponent(JTree tree,
Object value,
boolean selected,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus)
Color colSelBorderCol = UIManager.getColor
("Tree.selectionBorderColor");
selBorder_ = BorderFactory.createLineBorder(colSelBorderCol, 1);
normBorder_ = BorderFactory.createEmptyBorder(1,1,1,1);
elementCheckBox_.setText(value.toString());
if(selected)
elementCheckBox_.setSelected(selected);
elementCheckBox_.setForeground(Color.YELLOW);
elementCheckBox_.setBackground(Color.RED);
else
elementCheckBox_.setForeground(tree.getForeground());
elementCheckBox_.setBackground(tree.getBackground());
if (hasFocus)
elementCheckBox_.setBorder(selBorder_);
else
elementCheckBox_.setBorder(normBorder_);
return elementCheckBox_;
Here is the Node Code setting all child nodes to selected:
public void setSelected(boolean selected)
isSelected_ = selected;
if(isSelected_)
if((this.getTagName() == "MARKET") ||
(this.getTagName() == "TIER") &&
(this.getChildCount() != 0))
selectChildren(true);
else
if((this.getTagName() == "MARKET") ||
(this.getTagName() == "TIER") &&
(this.getChildCount() != 0))
selectChildren(false);
public boolean isSelected()
return isSelected_;
public void selectChildren(boolean selected)
int children = getChildCount();
for(int i = 0; i < children; i++)
IMarketTreeNodeElement elem = (IMarketTreeNodeElement)
this.getChildNodes().item(i);
isSelected_ = selected;
Thanks for any help! :-)

I tried to run your sample code and it won't compile. The header files:
#include
#include
#include
#include
#include
do not exist on my install of MeasurementStudio. I am a bit suspicous that I don't have the latest and greatest (loading the dialong resouce gave version warnings). Here is one of my header file headers:
//==============================================================================
// Title : NiAxes3d.h
// Copyright : National Instruments 1999. All Rights Reserved.
// Purpose : Defines the CNiAxes3D class.
//==============================================================================
I
looked on your updates site and don't really see an update that applies to ComponentWorks or MeasurementStudio. My version per the MAX program for 3DControls is 3.5.549.
Do I need a newer version? What do I have to do to get the updated version? What does it cost?
Chuck

Problem in Adding JCheckBox Object to JTable

I want to add a JCheckBox Object to A JTbale Coloumn but it shows the following message in JTable Coloumn-
javax.swing.JCheckBox[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.5,border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@f9f9d8,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=2,bottom=2,right=2],paintBorder=false,paintFocus=true,pressedIcon=,rolloverEnabled=true,rolloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=].
Help Me in solving this problem

Hi,
All the thing you have to do is to return a boolean for the column. JTable will use a checkbox (as default) to show boolean values.

Java Swing application problem in Windows vista

When we execute the Swing application in windows vista environment.
The look and feel of the swing components are displayed improperly.
Do we need to put any specific look and feel for windows vista environment or any specific hardware configuration is required to setup windows vista environment.
Please give some inputs to solve the problem.
We have tried with the following sample code to run in windows vista.
* Vista.java
* Created on December 5, 2006, 5:39 PM
public class Vista extends javax.swing.JFrame {
/** Creates new form Vista */
public Vista() {
initComponents();
pack();
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
private void initComponents() {
jButton1 = new javax.swing.JButton();
jToggleButton1 = new javax.swing.JToggleButton();
jPanel1 = new javax.swing.JPanel();
jCheckBox1 = new javax.swing.JCheckBox();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jTextField1 = new javax.swing.JTextField();
getContentPane().setLayout(null);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jButton1.setText("Button 1");
getContentPane().add(jButton1);
jButton1.setBounds(20, 20, 170, 30);
jToggleButton1.setText("Togle btn");
getContentPane().add(jToggleButton1);
jToggleButton1.setBounds(100, 80, 90, 20);
jPanel1.setLayout(null);
jCheckBox1.setText("jCheckBox1");
jCheckBox1.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0, 0));
jCheckBox1.setMargin(new java.awt.Insets(0, 0, 0, 0));
jPanel1.add(jCheckBox1);
jCheckBox1.setBounds(10, 40, 130, 13);
getContentPane().add(jPanel1);
jPanel1.setBounds(10, 150, 200, 130);
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.setViewportView(jTextArea1);
getContentPane().add(jScrollPane1);
jScrollPane1.setBounds(210, 150, 164, 94);
jTextField1.setText("jTextField1");
getContentPane().add(jTextField1);
jTextField1.setBounds(240, 30, 140, 30);
pack();
}// </editor-fold>//GEN-END:initComponents
* @param args the command line arguments
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Vista().setVisible(true);
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jButton1;
private javax.swing.JCheckBox jCheckBox1;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
private javax.swing.JToggleButton jToggleButton1;
// End of variables declaration//GEN-END:variables
}

When we execute the Swing application in windows
vista environment.
The look and feel of the swing components are
displayed improperly.Improperly means what? You must be aware that Vista's native L&F certainly isn't supported yet.

Jcheckbox problem...

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