Java code lib javax.swing,Timer定时任务

/**
 * Created by LvJianwei on 2018/1/24.
 */

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Date;
import javax.swing.*;

/**
 * @program: reflection
 * @description: Timer
 * @author: LvJianwei
 * @create: 2018-01-24 10:32
 **/
public class TimerTest {

    public static void main(String[] args) {
        ActionListener listener = new TimePrinter();
        Timer timer=new Timer(1000,listener);
        timer.start();
        JOptionPane.showMessageDialog(null,"Quit program?");
        System.exit(0);
    }
}

class TimePrinter implements ActionListener{
    @Override
    public void actionPerformed(ActionEvent e) {
        System.out.println("At the tone,the time is "+new Date());
        Toolkit.getDefaultToolkit().beep();
    }
}