20 Lock锁的基本用法

package com.taotao.zuoye.thread;

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

/**
 *@author tom
 *Date  2020/7/15 0015 23:15
 *lock 锁的基本用法， 重入锁 ReentrantLock
 */
public class Thread005   implements  Runnable{
     private  static  int count =100;
     private Lock lock=new ReentrantLock();
    
    @Override
    public void run() {
        while (count>0){
            ticket();
        }
    }

    private void ticket() {
        try{
            Thread.sleep(30);
        }catch (Exception e){

        }
        try{
            lock.lock();
            if(count >0){
                System.out.println(Thread.currentThread().getName()+",正在出售："+(100-count+1));
                count--;
            }
        }catch (Exception e){
            e.getCause();
        }finally {
            lock.unlock();
        }


    }

    public static void main(String[] args) {
        Thread005 thread005=new Thread005();
        new Thread(thread005,"窗口1").start();
        new Thread(thread005,"窗口2").start();;
    }
}