滚动字幕

在屏幕上从左到右滚动当前时间

import java.awt.BorderLayout;  
import java.awt.Color;  
import java.awt.Font;  
import java.awt.Graphics;  
import java.awt.event.ActionEvent;  
import java.awt.event.ActionListener;  
import java.text.SimpleDateFormat;  
import java.util.Calendar;  
  
import javax.swing.JFrame;  
import javax.swing.JLabel;  
import javax.swing.JPanel;  
import javax.swing.Timer;  
  
public class ZiMu extends JFrame  
{  
  
    private static final long serialVersionUID = 1L;  
  
    public ZiMu()  
    {  
  
        Font font1 = new Font("幼圆", Font.BOLD, 16);  
        Calendar cal = Calendar.getInstance();  
        SimpleDateFormat formatter = new SimpleDateFormat("EEEE,MMMMdd日，yyyy年 HH:mm:ss");  
        String mDateTime = formatter.format(cal.getTime());  
  
        MovingMessagePanel messagePanel = new MovingMessagePanel(mDateTime);  
        messagePanel.setFont(font1);  
        messagePanel.setBackground(Color.BLACK);  
        messagePanel.setForeground(Color.PINK);  
  
        add(messagePanel);  
  
    }  
  
    public static void main(String[] args)  
    {  
  
    	ZiMu frame = new ZiMu();  
        JLabel label = new JLabel("开始调试时间：X月X日     结束调试时间：X月X日");  
        label.setBackground(Color.black);  
        frame.setTitle("滚动字幕");  
        frame.setLocationRelativeTo(null);  
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
        frame.setSize(320, 120);  
        frame.setVisible(true);  
        frame.add(label, BorderLayout.SOUTH);  
    }  
  
    static class MovingMessagePanel extends JPanel  
    {  
  
        /** 
         *  
         */  
        private static final long serialVersionUID = 1L;  
        private String message = " ";  
        private int xCoordinate = 0;  
        private int yCoordinate = 40;  
          
        public MovingMessagePanel(String message)  
        {  
            this.message = message;  
            Timer timer = new Timer(100, new TimerListener());  
            timer.start();  
        }  
  
        public void paintComponent(Graphics g)  
        {  
            super.paintComponent(g);  
  
            if (xCoordinate > getWidth())  
            {  
                xCoordinate = -100;  
            }  
  
            xCoordinate += 5;  
            g.drawString(message, xCoordinate, yCoordinate);  
        }  
  
        class TimerListener implements ActionListener  
        {  
  
            public void actionPerformed(ActionEvent e)  
            {  
                repaint();  
            }  
        }  
    }  
}