不安全线程取票

package 多线程练习;

public class 不安全线程买票实例 {
    public static void main(String[] args) {
        BuyTicket bt = new BuyTicket();
        new Thread(bt, "小明").start();
        new Thread(bt, "王老师").start();
        new Thread(bt, "黄牛党").start();
    }
}


/*
   模拟一个买票的线程接口实现类
 */
class BuyTicket implements Runnable {

    private int ticket = 10;
    private Boolean flag = true;

    @Override
    public void run() {
        while (flag) {
            buy();
        }
    }

    /*
       买票方法
     */
    public void buy() {
        // 票卖完了
        if (ticket <= 0) {
            flag = false;
            return;
        }

        // 模拟延时
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        //模拟买票
        System.out.println(Thread.currentThread().getName() + " 买到了第 " + ticket-- + " 张表");
    }
}

输出结果

 

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