package com.basic;

import java.util.concurrent.TimeUnit;

/**

* @program JavaBooks

* @description: 异常释放锁

* @author: mf

* @create: 2019/12/27 23:38

*/

public class T5 {

private int count = 0;

public synchronized void m() {

System.out.println(Thread.currentThread().getName() + " start... ");

while (true) {

count++;

System.out.println(Thread.currentThread().getName() + " count = " + count);

try {

TimeUnit.SECONDS.sleep(1);

} catch (InterruptedException e) {

e.printStackTrace();

}

if (count == 5) {

int i = 1 / 0; // 此处抛出异常，锁将被释放，要想不被释放，可以在这里进行catch，然后让循环继续

}

}

}

public static void main(String[] args) {

T5 t5 = new T5();

new Thread(() -> t5.m(), "t1").start();

try {

TimeUnit.SECONDS.sleep(3);

} catch (InterruptedException e) {

e.printStackTrace();

}

new Thread(() -> t5.m(), "t2").start();

}

}