我的程序编译有问题，请帮忙改正！

Question

import java.awt.*;
import java.applet.*;
import java.util.Date;
public class Clock extends Applet implements Runnable
 {
     Thread clockThread;
     Font font;
     public void init()
     {
        font =new Font("TmesRoman",Font.BOLD,48);
      }
      public void start()
     {
      if(clockThread==null)
      {
        clockThread=new Thread(this,"Showtime");
        clockThread.start();
        }
      }
      public void run()
      {
         while(clockThread!=null)
         {
            repaint();
            try
            {
               clockThread.sleep(1000);
             }catch(InterruptedException e) { }
           }
        }
      
     public void paint(Graphics g)
     {
        Date now =new Date();
        g.setFont(font);
        g.setColor(Color.red);        
        g.drawString(now.getHours()+":"+now.getMinutes()+":"+now.getSeconds(),5,50);
     }
     public void stop()
     {
       clockThread.stop();
     }
     }  
     编译结果：
D:\xu>javac Clock.java
Note: Clock.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.

Answer 1

clockThread.stop();
去掉
这个方法deprecated

Answer 2

还是有错误。不止一个方法deprecated。

Answer 3

now.getHours()+":"+now.getMinutes()+":"+now.getSeconds()改成:
SimpleDateFormat format=new SimpleDateFormat("HH:mm:ss");
g.drawString(format.format(now),5,50);建议你用JBuilder或者Eclips来学习,很多错误他就可以告诉你了