Java多线程模拟龟兔赛跑

Posted 2021-03-07 国王陛下万万岁

用Runnable接口实现多线程

public class ThreadDemo {
    public static void main(String[] args) throws InterruptedException {
        Racer racer = new Racer();
        new Thread(racer, "乌龟").start();
        new Thread(racer, "兔子").start();
    }
}

class Racer implements Runnable {
    private String winner;

    //重写run(）方法
    @Override
    public void run() {
        for (int step = 0; step <= 100; step++) {
            //模拟让兔子睡觉
            if(Thread.currentThread().getName().equals("兔子") && step%10==0 ){
                try {
                    Thread.sleep(1);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            System.out.println(Thread.currentThread().getName() + "跑了第" + step + "步.");
            boolean flag = isGameOver(step);
            if (flag) {
                break;
            }
        }
    }

    public boolean isGameOver(int steps) {
        if (winner != null) {
            return true;
        } else {
            if (steps == 100) {
                winner = Thread.currentThread().getName();
                System.out.println("胜利者是:" + winner);
                return true;
            }
        }
        return false;
    }
}

重点：

Thread.sleep(int i);//暂停线程i秒
Thread.currentThread().getName()//获得当前线程名字