testactionevent.java

java程序设计源代码

import java.awt.*;
import java.awt.event.*;
public class TestActionEvent {
    public static void main(String args[]) {
		Frame f = new Frame("Test");
		Button b = new Button("Press Me!");
		f.add(b);
		
		Monitor bh = new Monitor();
		b.addActionListener(bh);
		
		f.pack();
		f.setVisible(true);
    }
}

class Monitor implements ActionListener {
    public void actionPerformed(ActionEvent e) {
        System.out.println("a button has been pressed");    
    }
}