/*电影院一共有100张票，写3个窗口卖这100张票，使用多线程来模拟卖票的过程*/
public class HomeWork1 {
public static void main(String[] args) {
ticket1 t = new ticket1();
FutureTask task = new FutureTask(t);
new Thread(task, "窗口A").start();
new Thread(task, "窗口B").start();
new Thread(task, "窗口C").start();
}
}
class ticket1 implements Callable {
private int a = 100;
Object obj = new Object();
@Override
public Object call() throws InterruptedException {
System.out.println(Thread.currentThread().getName());
while (a > 90) {
Thread.sleep(100);//休眠时间
synchronized (obj) {
a--;
System.out.println(Thread.currentThread().getName() + "还剩" + a);
}
}
return null;
}
}
如上代码，将多个线程操作一个数据，但是每次执行完成，结果总是只有一个线程在运行。请各路大神帮忙看看==
