线程接口卖票实例

 public static void main(String[] args) {
        sale se=new sale();

        Thread td1=new Thread(se,"1号窗口");
        Thread td2=new Thread(se,"2号窗口");
        Thread td3=new Thread(se,"3号窗口");
        Thread td4=new Thread(se,"4号窗口");

       td1.start();
       td2.start();
       td3.start();
       td4.start();


    }
}

class sale implements Runnable{
    private  Integer ticket=120;

    @Override
    public void run() {
        while (true){
            if (ticket>0){
                System.out.println(Thread.currentThread().getName()+"卖了一张"+(ticket--)+"号票");
            }else{
                break;
            }
        }
    }
}