Re: closing a specific JF

"Knute Johnson" <knute.johnson@THRWHITE.remove-dii-this>
Wed, 27 Apr 2011 15:27:33 GMT
William Z. wrote:

I have a JFrame that, when I click "new" in the menu bar, creates
another JFrame like that of the first. It just runs the following code

EventQueue.invokeLater(new Runnable() {
   public void run() {
      MyApp app = new MyApp();

And inside the createGUI() method is this ...

addWindowListener(new WindowListener() {
   public void windowOpened(WindowEvent arg0) {}
   public void windowClosed(WindowEvent arg0) {}
   public void windowIconified(WindowEvent arg0) {}
   public void windowDeiconified(WindowEvent arg0) {}
   public void windowActivated(WindowEvent arg0) {}
   public void windowDeactivated(WindowEvent arg0) {}
   public void windowClosing(WindowEvent arg0) {

As it works right now, when I close a window, all the windows close and
I'd just like to close only that specific window in which the user
clicked the close button.

Any help much appreciated.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class test extends JFrame implements ActionListener {
     JButton openButton,closeButton;
     JFrame frame;

     public test() {
         setLayout(new FlowLayout());

         openButton = new JButton("Open");

         closeButton = new JButton("Close");

         frame = new JFrame("extra frame");
         frame.addWindowListener(new WindowAdapter() {
             public void windowClosing(WindowEvent we) {
                 test.this.actionPerformed(new ActionEvent(


     public void actionPerformed(ActionEvent ae) {
         String ac = ae.getActionCommand();

         if (ac.equals("Open")) {
         } else if (ac.equals("Close")) {

     public static void main(String[] args) {
         Runnable r = new Runnable() {
             public void run() {
                 new test();


Knute Johnson
email s/nospam/knute/

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