testwindowlistener.java

来自「疯狂Java讲义_源码(含Java设计模式CHM」· Java 代码 · 共 61 行

import java.awt.*;
import java.awt.event.*;
/**
 * Description:
 * <br/>Copyright (C), 2005-2008, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [e-mail]
 * @version  1.0
 */
public class TestWindowListener
{
	private Frame f = new Frame("测试");
	private TextArea ta = new TextArea(6 , 40);
	public void init()
	{
		f.addWindowListener(new MyListener());
		f.add(ta);
		f.pack();
		f.setVisible(true);
	}
	class MyListener implements WindowListener
	{
		public void windowActivated(WindowEvent e)
		{
			ta.append("窗口被激活！\n");
		}
		public void windowClosed(WindowEvent e) 
		{
			ta.append("窗口被成功关闭！\n");
		}
		public void windowClosing(WindowEvent e) 
		{
			ta.append("用户试图关闭窗口！\n");
			System.exit(0);
		}
		public void windowDeactivated(WindowEvent e) 
		{
			ta.append("窗口失去焦点！\n");
		}
		public void windowDeiconified(WindowEvent e) 
		{
			ta.append("窗口被恢复！\n");
		}
		public void windowIconified(WindowEvent e)
		{
			ta.append("窗口被最小化！\n");
		}
		public void windowOpened(WindowEvent e) 
		{
			ta.append("窗口初次被打开！\n");
		}
	}
	public static void main(String[] args) 
	{
		new TestWindowListener().init();
	}
}