?? clocklabel.java~3~
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package hotel2;import java.awt.*;import javax.swing.JLabel;import java.util.*;import java.text.DateFormat;/** * <p>Title: 客房官理系統</p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2004</p> * <p>Company: </p> * @author 楊淳 * @version 1.0 */public class Clocklabel extends JLabel implements Runnable{ private Thread clockthread=null; public Clocklabel() { if(clockthread==null) { clockthread=new Thread(this,"clock"); clockthread.start(); } } public void run() { while(true) { Calendar cal=Calendar.getInstance(); Date date=cal.getTime(); DateFormat dateformatter=DateFormat.getTimeInstance(); this.setText(dateformatter.format(date)); try{ Thread.sleep(1000); } catch(Exception e){} } } public Thread getClockthread() { return clockthread; }}?? 快捷鍵說明
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