[Java知识库]Java多线程之龟兔赛跑

Java多线程问题之龟兔赛跑

package Thread;

public class Demo04 implements Runnable{

    //胜利者
    private String winner;
    @Override
    public void run() {
        for (int i = 1; i <= 100; i++) {

            //模拟兔子休息
            if (Thread.currentThread().getName().equals("兔子")){
                try {
                    Thread.sleep(1);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                    System.out.println("兔子睡觉了");
                }
            }

            //判断比赛是否结束
            boolean flag = gameover(i);

            //如果结束，就停止游戏
            if (flag){
                break;
            }

            System.out.println(Thread.currentThread().getName() + "跑了第" + i + "步");
        }

    }

    //判断是否完成游戏
    public boolean gameover(int i){
        if (winner != null){
            return true;
        }{
           if (i>=100){
               winner = Thread.currentThread().getName();
               System.out.println(winner + "获得了胜利");
               return true;
           }
        }
        return false;
    }

    public static void main(String[] args) {
        Demo04 demo04 = new Demo04();
        new Thread(demo04,"乌龟").start();
        new Thread(demo04,"兔子").start();

    }
}