多线程之多人售票

public class Test {
    public static void main(String[] args)  {
       SaleTickets saleTickets = new SaleTickets();	
       Thread thread1 = new Thread(saleTickets);	//创建第一个线程
       Thread thread2 = new Thread(saleTickets);	//创建第二个线程
       thread1.start();	//启动线程
       thread2.start();
    }
}
//实现线程接口
class SaleTickets implements Runnable {
    private int tickets = 50;

    public void run() {
        while (true) {
            synchronized (this) {		//同步函数，共享同一个tickets
                if (tickets > 0) {
                    try {
                        Thread.sleep(100);	//使当前线程进入休眠状态
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println(Thread.currentThread().getName() + "售出\t还剩" + (tickets--) + "张票");
                }
            }
        }
    }
}