线程—龟兔赛跑

package com.daxing.demo01;
//多线程--模拟龟兔赛跑
public class Race implements Runnable {
    private static String winner;

    @Override
    public void run() {
        for (int i = 0; i <=100; i++) {

            //模拟兔子休息
            if(Thread.currentThread().getName().equals("兔子") && i%10==0){
                try {
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

            //判断比赛是否结束
            boolean flag = gameOver(i);
            //如果比赛结束，停止程序
            if (flag == true) {
                break;
            }
            System.out.println(Thread.currentThread().getName() + "-->跑了" + i + "步");
        }
    }

    //判断比赛是否结束
    private boolean gameOver(int steps) {
        //判断是否有胜利者，如果胜利者不存在，则比赛继续
        if (winner != null) {//已经存在胜利者
            return true;
        } else if (steps >= 100) {
            winner = Thread.currentThread().getName();
            System.out.println("winner is " + winner);
            return true;
        }
        return false;
    }

    public static void main(String[] args) {
        Race race = new Race();

        new Thread(race,"兔子").start();
        new Thread(race,"乌龟").start();
    }

}