dispactheventapplet.java

这是我自己照着书上敲的

import java.applet.Applet;
/*
 * Created on 2007-9-14
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
import java.awt.*;
import java.awt.event.*;
/**
 * @author Administrator
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class DispacthEventApplet extends Applet {
	Button first,second;
	public void init()
	{
		first=new Button("发送事件");
		second=new Button("处理事件");
		first.addActionListener(new Listener());
		second.addActionListener(new Listener());
		add(first);
		add(second);
		this.setBackground(Color.lightGray);
	}
	class Listener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			if(e.getSource()==first)
			{
				first.dispatchEvent(new ActionEvent(
						second,ActionEvent.ACTION_PERFORMED,""));
				showStatus("准备发送事件");
			}
			else
			{
				showStatus("正在处理事件");
				try
				{
					Thread.currentThread().sleep(2000);
				}
				catch(InterruptedException ex)
				{
					ex.printStackTrace();
				}
			}
		}
	}

}