java ReentrantLock 公平锁 非公平锁 测试

package reentrantlock;

import java.util.ArrayList;
import java.util.concurrent.locks.ReentrantLock;

public class TestFairSyn {

    public static void main(String[] args) {
        ArrayList<Thread> arrayList = new ArrayList<>();
        Resrc resrc = new Resrc();

        for (int i = 0; i < 15; i++){
            arrayList.add(new Thread(resrc));
        }
        for (int i = 0; i < 15; i++){
            arrayList.get(i).start();
        }
    }

    static class Resrc implements Runnable{
        private static boolean isTestFair = true;
        ReentrantLock reentrantLock = new ReentrantLock(isTestFair);

        @Override
        public void run() {
            System.out.println(Thread.currentThread().getId()+" 尝试获得锁");
            reentrantLock.lock();
            if (false){
                System.out.println("		" + Thread.currentThread().getId() + " 成功获得锁-解锁");
                reentrantLock.unlock();
            }
            else {
                try {
                    System.out.println("		" + Thread.currentThread().getId() + " 成功获得锁");
                    // 如果测试 公平锁，把睡眠时间取消，能够大大增加线程的抢占现象
                    Thread.sleep(0, 100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } finally {
                    System.out.println("		" + "		" + Thread.currentThread().getId() + " 解锁");
                    reentrantLock.unlock();
                }
            }
        }
    }

}