[RESOLVED] using an anonymous inner class

how do i use an anonymous inner class with this code:

Code:

---

class MyFrame extends JFrame{
MyListener listener = new MyListener();
public MyFrame(){
    addWindowListener(listener);
}
}

class MyListener extends WindowAdapter{
public void windowClosing(WindowEvent e){
    System.exit(0);
}
}

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If you want to exit the application when the main window frame closes, the usual way is to set the frame's default close operation to DISPOSE_ON_CLOSE (or for uncontrolled exit, EXIT_ON_CLOSE). See the JFrame API docs for details:

Code:

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frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

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Remember that (as we already told you) you should avoid using System.exit(), especially in GUI applications.

If you want to add a WindowListener using an anonymous class, it would go something like this:

Code:

---

public MyFrame(){
  addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.out.println("Window is closing");
      }
  });
}

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The problem is never how to get new, innovative thoughts into your mind, but how to get old ones out!
D. Hock