lock

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package it_06;

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

public class SellTicket implements Runnable{
    private  int ticket = 100;
    private int x=0;
    private Lock lock = new ReentrantLock();
    Object obj =new Object();
    @Override
    public void run() {
        while (true) {
            try {
                lock.lock();
                if (ticket > 0) {
                    try {
                        Thread.sleep(100);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println(Thread.currentThread().getName() + "正出售第" + ticket + "张");
                    ticket--;
                }
            }finally {
                lock.unlock();
            }
        }
    }
}