Java 多线程模拟卖票

/**
 * @Author: crush
 * @Date: 2021-05-12 16:24
 * version 1.0
 */
public class SellTicketTask implements Runnable {

    /**
    * 一百张票
    */
    private int ticketCount = 100;

    @Override
    public void run() {
        while (true) {
            // 同步代码块 防止超买  这一段也是临界区 
            synchronized (this) {
                if (ticketCount <= 0) {
                    break;
                } else {
                    try {
                        Thread.sleep(10);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    ticketCount--;
                    System.out.println(
                            Thread.currentThread().getName() + ":还剩下--" + ticketCount + "张票");
                }

            }
        }

    }
}

/**
 * @Author: crush
 * @Date: 2021-05-12 16:30
 * version 1.0
 */
public class SellTickTaskDemo {
    public static void main(String[] args) {
        SellTicketTask sellTicketTask = new SellTicketTask();
        Thread t1 = new Thread(sellTicketTask);
        Thread t2 = new Thread(sellTicketTask);
        Thread t3 = new Thread(sellTicketTask);
        t1.setName("售票窗口1:");
        t2.setName("售票窗口2:");
        t3.setName("售票窗口3:");
        t1.start();
        t2.start();
        t3.start();
    }
}