第5周作业-时钟动画程序(15-9)

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

public class DisplayClock extends JFrame
{
public DisplayClock()
{

StillClock clock = new StillClock();

MessagePanel messagePanel = new MessagePanel(clock.getHour() +
":" + clock.getMinute() + ":" + clock.getSecond());
messagePanel.setCentered(true);
messagePanel.setFreground(Color.blue);
messagePanel.setFont(new Font("Courier",Font.BOLD,16));

add(clock);
add(messagePanel,BorderLayout.SOUTH);

}

public static void main(String[] args)
{
DisplayClock frame = new DisplayClock();
frame.setTitle("DisplayClock");
frame.setSize(300,350);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}