windowClosed

import java.awt.*;
import java.awt.event.*;

public class CloseableFrame extends Frame implements WindowListener {
  public CloseableFrame() { this.addWindowListener(this); }
  public void windowClosing(WindowEvent e) {
	  System.out.println("aeee eu fui fechado!!!");
	  this.dispose();
  }
  public void windowOpened(WindowEvent e) {}
  public void windowClosed(WindowEvent e) {}
  public void windowIconified(WindowEvent e) {}
  public void windowDeiconified(WindowEvent e) {}
  public void windowActivated(WindowEvent e) {}
  public void windowDeactivated(WindowEvent e) {}

  public static void main(String [ ] args){
	  CloseableFrame cf = new CloseableFrame();

	  cf.setSize(300, 300);

         cf.setVisible(true);
  }
}