如果用static 修饰车票的数量，然后在在车票减少的地方加上synchronized可以吗？

public class Ticket extends Thread {

private static int tickets = 5;

public void run() {

try {

Thread.sleep(100);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

while (tickets > 0) {

synchronized (this) {

tickets--;

System.out.println(Thread.currentThread().getName() + " has " + tickets + " tickets left!");

}

Thread.yield();

}

}

}

个人亲测不行，但是不知道问题在哪？敬求指教！！！