Java-线程$死锁

来源：互联网发布：累加和校验算法编辑：程序博客网时间：2024/04/29 10:57

/* * 需求：现场写出一个线程死锁的例子 * 思想：使用同步代码块嵌套的形式实现线程死锁 * 步骤：1.创建两把锁，locka，lockb      2.创建两个线程，两把锁嵌套*/class Lock{public static final Object locka = new Object();public static final Object lockb = new Object();}class DeadLock implements Runnable{boolean flag = true;DeadLock(boolean flag){this.flag = flag;}public void run(){if(flag){while(true)synchronized(Lock.locka){System.out.println(flag + ".... locka");synchronized(Lock.lockb){System.out.println(flag + ".....lockb");}}}else{while(true)synchronized(Lock.lockb){System.out.println(flag + ".... lockb");synchronized(Lock.locka){System.out.println(flag + ".....locka");}}}}}class LockDemo{public static void main(String[] args){DeadLock d1 = new DeadLock(true);DeadLock d2 = new DeadLock(false);Thread t1 = new Thread(d1);Thread t2 = new Thread(d2);t1.start();t2.start();}}

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