线程同步的一个问题，求高手指导

public class TestTicket{
public static void main(String[] args){
SellTickets st = new SellTickets();
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();

}

}

class SellTickets implements Runnable{
private int ticket=10;
private synchronized void SellTickets(){

        try{
            Thread.sleep(1000);
          System.out.println(Thread.currentThread().getName() +
           "第 " + ticket + "张票已经售出。" ); 
           ticket--;
           this.wait();
           this.notify();
        }
        catch(Exception e){
    e.printStackTrace();
        }

}
public synchronized void run(){
      while(ticket>0){
         SellTickets();
    } 
        System.out.println(Thread.currentThread().getName() + "票已经售完，正在补票中，请等待。。。");

}
}

输出结果

我想要实现3个窗口轮流售票。怎么弄 实在搞不了了

建议你看看多线程的生成者和消费者

t1.start() ;
t2.start() ;
t3.start() ;
t1.join() ;
t2.join() ;
t3.join() ;

join() 等当前线程执行完 在执行其他线程

public class Maipiao implements Runnable{

    int i  =100000;

    public static void main(String[] args) {

    Maipiao m = new Maipiao();
    Thread t1 = null;
    for(int i=0;i<10;i++){
         t1 = new Thread(m);
        t1.start();
    }

    }

    private synchronized void sale() {
        if(i > 0){
            System.out.println(Thread.currentThread() + "正在购买第" + i-- + "张票");
            try {
                Thread.sleep(0);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

    }

    @Override
    public  void run() {
        while (i>0) {
            sale();
        }
    }



}