example15_8.java

不错的教程 适合中高级人员的使用

import java.applet.*;import java.awt.*;import java.awt.event.*;
public class Example15_8 extends Applet
{  Frame f,g;
   public void init()
   {  f=new Frame("音乐之窗");g=new Frame("体育之窗");
      f.setSize(150,150); f.setVisible(true);
      g.setSize(200,200); g.setVisible(false);
      f.addWindowListener(new WindowAdapter()
                  {  public void windowClosing(WindowEvent e)
                     { f.setVisible(false);
                       g.setVisible(true);
                     } 
                  } );         //适配器
      g.addWindowListener(new WindowAdapter()
                    {public void windowClosing(WindowEvent e)
                       {  g.setVisible(false);
                          f.setVisible(true);
                        }
                    } );
   }
}