//买票问题
class Xc9 implements Runnable{public static int chepiao=100;static String aa=new String("1");//字符串随意定义，定义在函数上面public  void run(){while (true){synchronized (aa) //可以修饰代码块，又可以修饰函数/*try{Thread.sleep(50);}catch (Exception e){}*/{if(chepiao>0){System.out.println("第"+Thread.currentThread().getName()+"个车站正在卖第"+(101-chepiao)+"张车票");--chepiao;}else {break;}}}}
}
public class test34 {public static void main(String[] args){Xc9 xc81=new Xc9();Thread ee=new Thread(xc81);ee.start();Xc9 xc82=new Xc9();Thread ff=new Thread(xc82);ff.start();}
}

运行结果