Java 数量为5的线程池同时运行5个窗口买票，每隔一秒钟卖一张票

 /**
  * 1、创建线程数量为5的线程池
  * 2、同时运行5个买票窗口
  * 3、总票数为100，每隔一秒钟卖一张票
  * @author Administrator
  *
  */
 public class Window {

     static int tickets = 100;
     static String string = "";

     public static void main(String[] args) {
         ExecutorService service = Executors.newFixedThreadPool(5);
         service.execute(new Runnable() {
             @Override
             public void run() {
                 while (tickets > 0) {
                     synchronized (string) {
                         try {
                             if (tickets > 0) {
                                 System.out.println(Thread.currentThread().getName()
                                         + "卖出了第" + (tickets--) + "张票");
                                 Thread.sleep(1000);
                             }

                         } catch (Exception e) {
                             e.printStackTrace();
                         }
                     }
                 }

             }
         });
         //关闭线程池
         service.shutdown();
     }

 }