testactionevent.java

自己做的一个QQ聊天系统

package test.gui;

import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class TestActionEvent {


	public static void main(String[] args) {
		// TODO Auto-generated method stub
        JFrame frame = new JFrame();
        JButton b = new JButton("test action event");
        frame.add(b);
        b.addActionListener(new ActionListener(){
        	public void actionPerformed(ActionEvent e) {
        		Component c = (Component) e.getSource();
        		c.setBackground(Color.BLUE);       		
        	}
        });
        frame.setSize(400,400);
        //frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
        
	}

}