多线程实现龟兔赛跑

多线程总结龟兔赛跑

package com.lening.thread;

/**
 * @Author WangEn
 * @CreateTime: 2021-04-08-17-09
 * @Emile: wen_5988@163.com
 */
// 模拟龟兔赛跑
public class TestRace implements Runnable {
    // 定义字段胜利者
    private static String winner;
    @Override
    public void run() {
        for (int i = 0; i <= 100; i++) {
            //  定义一个状态调用方法
            boolean flag = gameOver(i);
            if (flag){
                break;
            }
            if (Thread.currentThread().getName().equals("兔子")&& i%50==0){
                try {
                    Thread.sleep(200);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            System.out.println(Thread.currentThread().getName()+"-->跑了"+i+"步");
        }
    }

    public Boolean gameOver(int steps){
        if (winner!=null){ // 胜利者产生
            return true;
        }{
            if (steps>=100){
                winner = Thread.currentThread().getName();
                System.out.println("winner is"+winner+"《奖杯》");
                return true;
            }
        }
        return false;
    }

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