编写 三个类 ticket，sealWindow,ticketSealCenter,代表票信息，售票窗口，售票中心， 售票中心分配一定数量的票（多个窗口实现多线程售票）

package com.heima.test;

public class Test18 {

    /**编写 三个类 ticket，sealWindow,ticketSealCenter,代表票信息，售票窗口，售票中心， 售票中心分配一定数量的票（多个窗口实现多线程售票） * @param args */
    public static void main(String[] args) {
        window w = new window();
        new Thread(w,"一号窗口").start();
        new Thread(w,"二号窗口").start();
        new Thread(w,"三号窗口").start();
        new Thread(w,"四号窗口").start();
        new Thread(w,"五号窗口").start();

    }

}
class window implements Runnable{

    @Override
    public void run() {
        while(true){
            synchronized (window.class) {
                if(ticket.getTic()){
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {

                        e.printStackTrace();
                    }
                    System.out.println(Thread.currentThread().getName()+
                            "卖出了第"+ticket.getTicket()+"号票！");
                }else{
                    System.out.println("票卖完了！");
                    break;
                }
            }
        }
    }

}
class ticket{
    private static int tic = 100;

    public static int getTicket() {
        return tic--;
    }

    public static void setTic(int tic) {
        ticket.tic = tic;
    }
    public static boolean getTic(){
        if(tic > 0){
            return true;
        }else{
            return false;
        }
    }
}