问题描述
try{Thread.sleep(1);}catch(InterruptedExceptione){e.printStackTrace();}
当不添加上述代码时，线程没有进入run函数中，也就是不会更新秒表的各个数据，但是调试过程中可以看到countState已经变化了。求大神解答，或者赐教怎么在eclipse中对线程进行调试的方法。秒表实现如下：//为什么不加睡眠的时候有错误呢？//try{//Thread.sleep(100);//}catch(InterruptedExceptione){//e.printStackTrace();//}packagetime;//计时的类，有开始计时，暂停计时，停止计时等功能//停止计时之后，计时线程将消亡publicclassTimeimplementsRunnable{privateintminute;//分钟数privateintsecond;//秒数privatelongstartMillis;//开始的豪秒数privatelongnewMillis;//新的毫秒数privatelongtotalMillis;//总的毫秒数秒数privatelongpauseMillis;//暂停毫秒数privateThreadclockThread;//走时线程privateintcountState=2;//计数状态，1是正常计数，2是暂停，3是停止，初始设置为暂停状态publicTime(){resetTime();//设置初始值0clockThread=newThread(this);//创建线程clockThread.start();//使线程进入就绪状态}@Overridepublicvoidrun(){while(countState!=3){//还没停止，进入循环状态if(countState==1){//正常计数状态//定时更新时间newMillis=System.currentTimeMillis();//现在的时间totalMillis=newMillis-startMillis;//总的毫秒数System.out.println(totalMillis);second=(int)(totalMillis/1000)%60;minute=(int)(totalMillis/1000/60);}try{Thread.sleep(1);}catch(InterruptedExceptione){e.printStackTrace();}}//一旦进入停止状态，线程结束}publicvoidpauseCount(){countState=2;//暂停计数pauseMillis=totalMillis;//记录暂停时的总的毫秒数}publicvoidstartCount(){countState=1;//开始计数startMillis=System.currentTimeMillis()-pauseMillis;//读取虚拟的开始时刻}publicvoidstopCount(){countState=3;//停止计数，此时线程即将死亡}publicvoidresetTime(){minute=0;second=0;startMillis=0;pauseMillis=0;totalMillis=0;newMillis=0;}publicintgetMinute(){returnminute;}publicintgetSecond(){returnsecond;}publiclonggetTotal(){returntotalMillis;}}
主类：packagetest;//还是有问题，我想实现停止计时之后还是使用同个Time对象importjava.awt.Container;importjava.awt.FlowLayout;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JLabel;importtime.Time;publicclassTimeTestextendsJFrame{privateJLabeltimeText,totalText;privateJButtonstartButton;privateJButtonpauseButton;privateJButtonendButton;privateJButtontotalButton;privateTimetime=newTime();publicTimeTest(){super("秒表功能演示");Containercontainer=getContentPane();container.setLayout(newFlowLayout());//设置布局timeText=newJLabel("时间：00M:00S");totalText=newJLabel("总的毫秒数是：0");container.add(timeText);container.add(totalText);startButton=newJButton("开始计时");pauseButton=newJButton("暂停计时");endButton=newJButton("停止计时");totalButton=newJButton("总的毫秒数");container.add(startButton);container.add(pauseButton);container.add(endButton);container.add(totalButton);Listenerlistener=newListener();startButton.addActionListener(listener);pauseButton.addActionListener(listener);endButton.addActionListener(listener);totalButton.addActionListener(listener);setSize(250,150);setVisible(true);}publicstaticvoidmain(String[]args){TimeTesttest=newTimeTest();}privateclassListenerimplementsActionListener{@OverridepublicvoidactionPerformed(ActionEvente){if(e.getSource()==startButton){time.startCount();System.out.println("startcount");}if(e.getSource()==pauseButton){time.pauseCount();}if(e.getSource()==endButton){timeText.setText("时间："+time.getMinute()+"M:"+time.getSecond()+"S");time.stopCount();time=null;time=newTime();}if(e.getSource()==totalButton){totalText.setText("总的毫秒数是："+time.getTotal());}}}}