testactionevent.java

来自「本压缩文件中含有线程的控制」· Java 代码 · 共 26 行

package gui;

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

public class TestActionEvent {
	public static void main(String args[]) {
		JFrame f = new JFrame("Test");
		JButton b = new JButton("Press Me!");
		Monitor bh = new Monitor();
		b.addActionListener(bh);
//		b.setBackground(Color.BLUE);
		f.getContentPane().add(b,BorderLayout.SOUTH);
		f.pack();
		f.setVisible(true);
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
}

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