testmultiobjectonelistener.java

java程序设计源代码

import java.awt.*;
import java.awt.event.*;
public class TestMultiObjectOneListener {
    public static void main(String args[]) {
		Frame f = new Frame("Test");
		Button b1 = new Button("Start");
		TextField b2 = new TextField("text");
		
		Monitor3 bh = new Monitor3();
		b1.addActionListener(bh);       
		b2.addActionListener(bh);
		f.add(b1,"North");       
		f.add(b2,"Center");	
		f.pack();        		
		f.setVisible(true);
    }
}

class Monitor3 implements ActionListener {
	public void actionPerformed(ActionEvent e) {
		System.out.println("a button " + e.getSource() + " has been pressed." + 
			"command is: " + e.getActionCommand()
		);    
	}
}