多线程-死锁Test

blacop

于 2016-07-05 22:01:38 发布

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分类专栏： Java 文章标签：多线程死锁

本文链接：https://blog.youkuaiyun.com/blacop/article/details/51834976

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class Test implements Runnable
{
    private boolean flag;
    Test(boolean flag)
    {
        this.flag = flag;
    }   
    public void run()
    {
        if(flag)
        {
            while(true)
            {
                synchronized(Mylock.locka)
                {
                    System.out.println("if locka");
                    synchronized(MyLock.lockb)
                    {
                        System.out.println("if lockb");
                    }
                }
            }
        }
        else
        {
            while(true)
            {
                synchronized(Mylock.locka)
                {
                    System.out.println("else lockb");
                    synchronized(MyLock.lockb)
                    {
                        System.out.println("else locka");
                    }
                }
            }
        }
    }
}
class Mylock
{
    static Object locka = new Object();
    static Object lockb = new Object();
}
class  DeadLockTest
{
    public static void main(String[] args) 
    {
        Thread t1 = new Thread(new Test(true));
        Thread t1 = new Thread(new Test(false));
        t1.start();
        t2.start();
    }
}