你自己说的不是很明白了么
就是因为ActionListener中有actionPerformed()方法
原理和你的程序一样呀,也是在Button添加ActionListener之后,会调用该监听器的方法。
这种授权的事件监听方式都是基于MVC模式的
就是因为ActionListener中有actionPerformed()方法
原理和你的程序一样呀,也是在Button添加ActionListener之后,会调用该监听器的方法。
这种授权的事件监听方式都是基于MVC模式的
调试欢乐多
* @(#)ActionListener.java 1.14 01/12/03
*
* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/package java.awt.event;import java.util.EventListener;/**
* The listener interface for receiving action events.
* The class that is interested in processing an action event
* implements this interface, and the object created with that
* class is registered with a component, using the component's
* <code>addActionListener</code> method. When the action event
* occurs, that object's <code>actionPerformed</code> method is
* invoked.
*
* @see ActionEvent
* @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/eventmodel.html">Tutorial: Java 1.1 Event Model</a>
* @see <a href="http://www.awl.com/cp/javaseries/jcl1_2.html">Reference: The Java Class Libraries (update file)</a>
*
* @author Carl Quinn
* @version 1.14 12/03/01
* @since 1.1
*/
public interface ActionListener extends EventListener { /**
* Invoked when an action occurs.
*/
public void actionPerformed(ActionEvent e);}