模拟龟兔赛跑

package edu.wtbu;
//模拟龟兔赛跑
public class Demo01 implements Runnable{

    //胜利者
    private static String winner;
    @Override
    public void run() {
        for (int i = 0; i <=100 ; i++) {
            //模拟兔子睡觉
            if(Thread.currentThread().getName().equals("兔子")&&i%10==0){
                try {
                    Thread.sleep(10);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }

            //判断比赛是否结束
            boolean flag=gameOver(i);
            if (flag){
                break;
            }

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

    //判断是否完成比赛
    private boolean gameOver(int steps){
        if(winner!=null){
            return  true;
        }
        if(steps>=100){
            winner=Thread.currentThread().getName();
            System.out.println("winner is"+winner);
            return true;
        }
        return false;

    }

    public static void main(String[] args) {
        Demo01 demo01 = new Demo01();
        new Thread(demo01,"兔子").start();
        new Thread(demo01,"乌龟").start();
    }

}