Thread多线程样例--龟兔赛跑

Posted 2022-12-14 肖帆咪

public class RaceRG implements Runnable
    private static String winner;

    @Override
    public void run() 
        for (int i = 0; i <= 1000; i++) 
            //兔子跑到一半休息一会
            if (Thread.currentThread().getName().equals("兔子") && i==500)
                try 
                    Thread.sleep(1);
                 catch (InterruptedException e) 
                    e.printStackTrace();
                
            
            boolean flag = gameOver(i);
            if (flag)
                break;
            
            System.out.println(Thread.currentThread().getName()+"-->跑了"+i);
        
    

//判断谁先跑满1000米
    public boolean gameOver(int step)
        if (winner != null)
            return true;
        else
            if (step >= 1000)
                winner = Thread.currentThread().getName();
                System.out.println("winner is "+winner);
                return true;
            
        
        return false;
    

    public static void main(String[] args) 
        /*同一个资源被多个线程使用*/
        RaceRG rg = new RaceRG();
        new Thread(rg,"兔子").start();
        new Thread(rg,"乌龟").start();