How to reference the WindowListener in "class implements WindowListener"

Question

i need to remove a WindowListener but i dont know how to
reference Listeners implented by classes.
Thanks for any help in advance!
public class MyClass implements WindowListener{
public MyClass(){
frame.addWindowListener(this);
public static void RemoveIt(){
frame.removeWindowListener( ??? )
JFrame frame = new JFrame();
}

Answer 1

Looks like im just going to have to implement this
all much differently -
and maybe in a less lazy manner, haha.Hi! Sorry for my late reply.
Let me help you a little;
===============================================================
1.) You can create a class that will be shared by each of your frame.
===============================================================
The shared class will contain the following:
1.) The number of your alive frame.
2.) The information of your alive frame. ie. name, if it is the main, etc.
Then your frame should look at that shared class so that it will know when to
invoke System.exit(int);
===============================================================
2.) You can use java.util.prefs.Preferences
===============================================================
Use preference to put and get information about your frame.
===============================================================
3.) You can extends my class below.
===============================================================
NOTE: This example may or may not help the OP. I'm sorry.
* @(#)AbstractExitableJFrame.java     05/06/25
* 2005 Tunay na pag-aari ni Ronillo Ang.
package com.yahoo.ronilloang.cswingx;
import java.awt.GraphicsConfiguration;
import java.awt.event.WindowEvent;
import java.awt.event.WindowFocusListener;
import java.awt.event.WindowListener;
import java.awt.event.WindowStateListener;
import javax.swing.JFrame;
* Use this at your own risks.
* @version     1.4.2
* @author     Ronillo Ang
public abstract class AbstractExitableJFrame extends JFrame implements WindowFocusListener, WindowListener, WindowStateListener{
     private static int frameCount = 0; // how many are we?
      * @see          javax.swing.JFrame constructor.
     public AbstractExitableJFrame(){
          super();
          ++frameCount;
      * @see          javax.swing.JFrame constructor.
     public AbstractExitableJFrame(GraphicsConfiguration gc){
          super(gc);
          ++frameCount;
      * @see          javax.swing.JFrame constructor.
     public AbstractExitableJFrame(String title){
          super(title);
          ++frameCount;
      * @see          javax.swing.JFrame constructor.
     public AbstractExitableJFrame(String title, GraphicsConfiguration gc){
          super(title, gc);
          ++frameCount;
      * Called by the constructors to init the <code>AbstractExitableJFrame</code> properly.
     protected final void frameInit(){
          super.frameInit();
          addWindowFocusListener(this);
          addWindowListener(this);
          addWindowStateListener(this);
     public final void windowGainedFocus(WindowEvent we){
          exitableJFrameGainedFocus(we);
     public final void windowLostFocus(WindowEvent we){
          exitableJFrameLostFocus(we);
     public final void windowActivated(WindowEvent we){
          exitableJFrameActivated(we);
     public final void windowClosed(WindowEvent we){
          exitableJFrameClosed(we);
          --frameCount;
          if(frameCount <= 0 || isMain())
               System.exit(0);
     public final void windowClosing(WindowEvent we){
          exitableJFrameClosing(we);
     public final void windowDeactivated(WindowEvent we){
          exitableJFrameDeactivated(we);
     public final void windowDeiconified(WindowEvent we){
          exitableJFrameDeiconified(we);
     public final void windowIconified(WindowEvent we){
          exitableJFrameIconified(we);
     public final void windowOpened(WindowEvent we){
          exitableJFrameOpened(we);
     public final void windowStateChanged(WindowEvent we){
          exitableJFrameStateChanged(we);
      * Invoked when {@link #windowGainedFocus(WindowEvent)} is invoked.
     public abstract void exitableJFrameGainedFocus(WindowEvent we);
      * Invoked when {@link #windowLostFocus(WindowEvent)} is invoked.
     public abstract void exitableJFrameLostFocus(WindowEvent we);
      * Invoked when {@link #windowActivated(WindowEvent)} is invoked.
     public abstract void exitableJFrameActivated(WindowEvent we);
      * Invoked when {@link #windowClosed(WindowEvent)} is invoked.
     public abstract void exitableJFrameClosed(WindowEvent we);
      * Invoked when {@link #windowClosing(WindowEvent)} is invoked.
     public abstract void exitableJFrameClosing(WindowEvent we);
      * Invoked when {@link #windowDeactivated(WindowEvent)} is invoked.
     public abstract void exitableJFrameDeactivated(WindowEvent we);
      * Invoked when {@link #windowDeiconified(WindowEvent)} is invoked.
     public abstract void exitableJFrameDeiconified(WindowEvent we);
      * Invoked when {@link #windowIconified(WindowEvent)} is invoked.
     public abstract void exitableJFrameIconified(WindowEvent we);
      * Invoked when {@link #windowOpened(WindowEvent)} is invoked.
     public abstract void exitableJFrameOpened(WindowEvent we);
      * Invoked when {@link #windowStateChanged(WindowEvent)} is invoked.
     public abstract void exitableJFrameStateChanged(WindowEvent we);
      * Tests if this frame is the main frame.
     public abstract boolean isMain();
Take care and God bless you all. Thank you. -Ronillo