P423 多线程例题：多窗口卖票

WindowTest类

class Window extends Thread{
    private static int ticket=100;//要设置成静态的，不然每个对象的ticket的都是100了
    @Override
    public void run() {
        while (true){
            if(ticket>0){
                System.out.println(Thread.currentThread().getName()+":卖票，票号为："+ticket);
                ticket--;
            }else{
                break;
            }
        }
    }
}
public class WindowTest {
    public static void main(String[] args) {
        Window w1 = new Window();
        Window w2 = new Window();
        Window w3 = new Window();
        w1.setName("窗口1");
        w2.setName("窗口2");
        w3.setName("窗口3");
        w1.start();
        w2.start();
        w3.start();
    }
}