//notepad gg.java
// javac gg.java
// java gg
import java.awt.*;
import java.awt.event.*;
public class gg {
   Button c = new Button("bye");
   public static void main(String [ ] xxx) {
      new gg( );
   }
   gg( ) {
      Frame f = new Frame("2009");
      f.setSize(500, 300); f.setVisible(true);  // f.show( );
      Panel p = new Panel( );
      Button b = new Button("AAAAA");
      p.add(b); p.add(new Button("NoNameBBB"));
      f.add(p, "North"); 
      p.add(c);  // bye button
      Button s = new Button("Ha ha ha");
      f.add(s, "South"); s.setBackground(Color.red);
      f.validate( );
      YLau ar3 = new YLau(b);
      b.addActionListener(ar3);
      f.addWindowListener(ar3);
      c.addActionListener(ar3);
   }
 class YLau extends WindowAdapter implements ActionListener {
   Button x;  // call it this.x if necessary
   YLau(Button x) { this.x = x; }
   int tog = 0;
   public void actionPerformed(ActionEvent e) {
       System.out.print(" ActionEvent ");
       if(e.getSource( ) == x) {
           if(tog == 0) c.setBackground(Color.green);
           else c.setBackground(Color.blue);
           tog = 1 - tog;
       }
       if(e.getSource( ) == c) System.exit(0);
   }
   public void windowClosing(WindowEvent e) {
      Frame w = new Frame("Ha ha ha ... ");
      w.setSize(300,300); w.setVisible(true);
      w.addWindowListener(this);
   }//windowClosing
 }// YLau
} // class gg