07 龟兔赛跑

package ThreadDemo;
// 龟兔赛跑，总路程共一百步
public class Test07_Race implements Runnable{
    boolean flag;
    String winner;

    @Override
    public void run() {
        for (int i = 1; i <=100; i++) {
            // 偷懒的兔子
            if (Thread.currentThread().getName().equals("兔子")&& i%10 ==0){
                try {
                    Thread.sleep(5);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }
            flag=isGameOver(i);
            if (flag){
                break;
            }  // 有winner之后，游戏结束
            System.out.println(Thread.currentThread().getName()+"-->跑了 "+i+"步");
            if (winner!=null){
                System.out.println("winner是："+winner);
            }


        }
    }


    public boolean isGameOver(int step){
        if (winner!=null){
            return true;
        }
        if (step>=100){
            winner=Thread.currentThread().getName();
        }
        return false;
    }



    public static void main(String[] args) {
        Test07_Race race = new Test07_Race();
        new Thread(race,"兔子").start();
        new Thread(race,"乌龟").start();


    }
}