JAVA多线程售票问题

2022-11-04 19:37:25

//定义一个类实现Runnable接口，定义一个需要同步的售票方法，然后重写run方法调用售票的sale方法

1. class SaleTicket implements Runnable{
2. private int tickets = 100;
3. private synchronized void sale(){
4. if(tickets > 0){
5. System.out.println(Thread.currentThread().getName() + "卖出第 "+ (tickets--)+"张票");
6. try{
7. Thread.sleep(100);
8. }catch(InterruptedException e){
9. e.printStackTrace();
10. }
11. }
12. }
13. public void run(){
14. while(tickets > 0){
15. sale();
16. }
17. }
18. }
19. public class JavaTest {
20. public static void main(String[] args){
21. SaleTicket st = new SaleTicket();
22. Thread t1 = new Thread(st, "一号窗口");
23. Thread t2 = new Thread(st, "二号窗口");
24. Thread t3 = new Thread(st, "三号窗口");
25. Thread t4 = new Thread(st,"四号窗口 ");
26. t1.start();
27. t2.start();
28. t3.start();
29. t4.start();
30. }
31. }