testactionevent.java

该文件在eclipse环境上运行

package test.gui;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class TestActionEvent {

	public static void main(String[] args) {
		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.setVisible(true);
	}
}