多线程描述龟兔赛跑场景

闲来无事巩固基础

package com.chen.runable;

public class Race implements Runnable {
    private static String winner;

    @Override
    public void run() {
        for (int i = 1; i <= 200; i++) {

            //模拟兔子睡觉10步一睡
            if (Thread.currentThread().getName().equals( "兔子" ) && i%100==0){
                try {
                    Thread.sleep( 200 );
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

            boolean flag = GameOver( i );
            if (flag){
                break;
            }
            System.out.println( Thread.currentThread().getName()+"跑了"+i+"步" );
        }
    }

    //判断是否跑完
    boolean GameOver(int stap){
        if (winner!=null){
            System.out.println( "比赛已经决出胜负" );
            return true;
        }{
            if (stap>=100){
                winner = Thread.currentThread().getName();
                System.out.println( "胜利者是"+winner );
                return true;
            }else {
                return false;
            }
        }
    }

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

运行结果如下所示：（这不是历史的巧合）