windowlistenerdemo.java

这是清华大学编写的JAVA教材中所有题目的源代码！

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

class WindowListenerDemo extends Frame implements WindowListener
{
	public WindowListenerDemo(String title) 
	{
		super(title);
		addWindowListener(this);
		setSize(300,200);
		setVisible(true);		
	}
	
	//实现接口中定义的监听器事件
	public void windowClosing(WindowEvent e)
	{
		System.exit(0);
	}
	public void windowOpened(WindowEvent e) {}
	public void windowIconified(WindowEvent e) {}
	public void windowDeiconified(WindowEvent e) {}
	public void windowClosed(WindowEvent e) {}
	public void windowActivated(WindowEvent e) {}
	public void windowDeactivated(WindowEvent e) {}
	
	public static void main(String args[])
	{
		new WindowListenerDemo("窗口监听器示例");
	}
}