import javax.swing.JFrame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class MyFrame extends JFrame
{
    public MyFrame ()
    {
        MyWindowListener aWindowListener = new         
          MyWindowListener();
        this.addWindowListener(aWindowListener);
    }
      
    // Inner class defined within the MyFrame class.
    // Private because it's only used by the MyFrame class.
    private class MyWindowListener extends WindowAdapter
    {
        public void windowClosing (WindowEvent e)
        {
           JFrame aFrame = (JFrame) e.getWindow();
           aFrame.setTitle("Closing window...");
           delay();
           aFrame.setVisible(false);
           aFrame.dispose();
        }

      }
        private void delay()
        {
           try 
           {
              Thread.sleep(3000);
           }
           catch (InterruptedException ex) 
           {
              System.out.println("Pausing of program was" & 
                                 "unsuccesful and interrupted"); 
           }
           
        }
}