练习2

/*
例子：创建三个窗口卖票，总共100张

/

package com.atguigu.java1;
/**
 *例子：创建三个窗口卖票，总共100张
 *存在线程安全问题，待解决
 *
 * @author Dxkstart
 * @create 2021-05-06 16:46
 */
public class WindowTest {
    public static void main(String[] args) {
        Window w1 = new Window();
        Window w2 = new Window();
        Window w3 = new Window();
        w1.start();
        w2.start();
        w3.start();
    }
}
class Window extends Thread {
    private static int ticket = 100;//票数
    @Override
    public void run() {
        while(true){
            if(ticket > 0){
                System.out.println(getName() + ": 卖票，票号为" + ticket);
                ticket --;
            }else{
                break;
            }
        }
    }
}