测试Lock锁

package com.company;

import java.util.concurrent.locks.ReentrantLock;

//测试Lock锁
public class TestLock implements Runnable{
    public static void main(String[] args) {
        TestLock testLock = new TestLock();

        new Thread(testLock,"A").start();
        new Thread(testLock,"B").start();
        new Thread(testLock,"C").start();
    }

    int ticketNums = 10;

   private final ReentrantLock lock= new ReentrantLock();
    @Override
    public void run() {
        while(true){
            lock.lock();
            if(ticketNums>0){
                try {
                    Thread.sleep(1000);
                }catch (InterruptedException e){
                    e.printStackTrace();
                }

                System.out.println(ticketNums--);
            }else{
                break;

            }
        }

        lock.unlock();

    }
}