package concurrent.lock;

import java.util.concurrent.locks.Lock;

import java.util.concurrent.locks.ReentrantLock;

/**

* Created by Edwin Xu on 6/27/2020 2:06 PM

*/

public class ReentrantLockTest {

/*

* ReentrantLock 实现了Lock接口，

* 提供更加细粒度和灵活的锁操作

*

* - 手动

* - 灵活

* - 公平锁

* - 非公平锁

* -

* */

private static final Lock lock = new ReentrantLock(true);

public static void main(String[] args) {

for (int i = 0; i < 100; i++) {

new Thread(()->test(),"线程"+i).start();

}

}

public static void test(){

try{

lock.lock();

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

}catch (Exception e){

e.printStackTrace();

}

finally {

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

lock.unlock();

}

}

}