Java codepublic class 倒計時時鐘 {

//小時

private int hours;

//分鐘

private int min;

//秒

private int second;

public 倒計時時鐘(int hours,int min,int second) {

this.hours = hours;

this.min = min;

this.second = second;

}

public int getHours() {

return hours;

}

public void setHours(int hours) {

this.hours = hours;

}

public int getMin() {

return min;

}

public void setMin(int min) {

this.min = min;

}

public int getSecond() {

return second;

}

public void setSecond(int second) {

this.second = second;

}

}

public class 倒計時 implements Runnable{

private 倒計時時鐘 clock;

private long time;

public 倒計時(倒計時時鐘 clock) {

this.clock = clock;

//將時間換算成秒

time = clock.getHours()*60*60+clock.getMin()*60+clock.getSecond();

}

public void run() {

while(time >= 0) {

try {

Thread.sleep(1000);

time -= 1;//時間減去一秒

clock.setHours((int)time/(60*60));

clock.setMin((int)(time/60)%60);

clock.setSecond((int)time % 60);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

//return clock;

}

public 倒計時時鐘 getTime() {

return clock;

}

public static void main(String [] args) {

倒計時時鐘 clock = new 倒計時時鐘(0,10,0);

倒計時 jishi = new 倒計時(clock);

顯示 show = new 顯示(jishi.getTime());

//顯示 show = new 顯示();

new Thread(show).start();

new Thread(jishi).start();

}

}

class 顯示 implements Runnable {

private 倒計時時鐘 clock;

public 顯示(倒計時時鐘 clock) {

this.clock = clock;

}

public void run() {

while(clock.getHours() != 0 ||

clock.getMin() != 0 ||

clock.getSecond() != 0) {

try {

System.out.println(String.format("%02d",clock.getHours())+

":"+String.format("%02d",clock.getMin())+

":"+String.format("%02d",clock.getSecond()));

Thread.sleep(1000);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

}

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