windowlistenerdemo.java

来自「java 完全探索的随书源码」· Java 代码 · 共 61 行

// WindowListenerDemo.java

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

class WindowListenerDemo extends Frame implements WindowListener
{
   WindowListenerDemo (String title)
   {
      super (title);

      addWindowListener (this);

      setSize (100, 100);

      setVisible (true);
   }

   public void windowOpened (WindowEvent e)
   {
      System.out.println ("window opened");
   }

   public void windowClosing (WindowEvent e)
   {
      System.out.println ("window closing");
      dispose ();
   }

   public void windowClosed (WindowEvent e)
   {
      System.out.println ("window closed");
      System.exit (0);
   }

   public void windowIconified (WindowEvent e)
   {
      System.out.println ("window iconified");
   }

   public void windowDeiconified (WindowEvent e)
   {
      System.out.println ("window deiconified");
   }

   public void windowActivated (WindowEvent e)
   {
      System.out.println ("window activated");
   }

   public void windowDeactivated (WindowEvent e)
   {
      System.out.println ("window deactivated");
   }

   public static void main (String [] args)
   {
      new WindowListenerDemo ("Window Listener Demo");
   }
}