| 12345678910111213141516171819202122 | package J20250730.demo10_lock;/** * @author WanJl * @version 1.0 * @title SellTicketDemo * @description * @create 2025/7/30 */public class SellTicketDemo {    public static void main(String[] args) {        SellTicket st=new SellTicket();        Thread t1=new Thread(st,"窗口1");        Thread t2=new Thread(st,"窗口2");        Thread t3=new Thread(st,"窗口3");        t1.start();        t2.start();        t3.start();    }}
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