请教一个线程和GUI合用的问题？

Question

在线程里repaint Frame。

Answer 1

import javax.swing.JFrame;
import javax.swing.JLabel;
import java.util.Date;
import java.awt.Toolkit;
import java.awt.Dimension;/**
 * <p>Title: DateFrame</p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2004</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */public class DateFrame extends JFrame 
{
        static JLabel aLabel;
        static String date;        public DateFrame()
        {
                aLabel = new JLabel(new Date().toString());
                this.getContentPane().add(aLabel);
                setSize(300, 200);
                Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
                setLocation((int) (d.getWidth() - this.getWidth()) / 2,
                            (int) (d.getHeight() - this.getHeight()) / 2);
                setVisible(true);
                setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        }                public static void main(String[] args)
        {
                final DateFrame dateFrame = new DateFrame();                             
         
                new Thread()
                {
                 public void run()
                    {
                     while(true)
                      {
                      try
                        {
                         Thread.currentThread().sleep(100);
                        }
                        catch (InterruptedException ex)
                        {}
                        
                            date = new Date().toString();
                            dateFrame.aLabel.setText(date);
                        }
                    }
                }.start();       
        }}
随便写写的，见笑！