java代码实现点击鼠标从控制台输出信息

package com.a.b;

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

class SB extends JFrame implements ActionListener {
JButton jb;

public SB() {
jb = new JButton("你你你");
jb.addActionListener(this);// 注册监听
this.setVisible(true);
this.add(jb);
this.setBounds(333, 333, 500, 500);
this.setDefaultCloseOperation(3);

}

public void actionPerformed(ActionEvent a) {

if (a.getSource() == jb) {
System.out.println("你好");
}
}

}

public class Shi {
public static void main(String[] args) {
new SB();
}

}