编写多线程程序，模拟多个人通过一个山洞。这个山洞每次只能通过一个人，每个人通过山洞的时间为2秒(sleep)。随机生成10个人，都要通过此山洞，用随机值对应的字符串表示人名，打印输出每次通过山洞的人名

package 线程;

public class CaveThread {

public static void main(String[] args) {
// TODO Auto-generated method stub
People1 man =new  People1();
    new Thread(man,"1").start();
    new Thread(man,"2").start();
    new Thread(man,"3").start();
    new Thread(man,"4").start();
    new Thread(man,"5").start();
    new Thread(man,"6").start();
    new Thread(man,"7").start();
    new Thread(man,"8").start();
    new Thread(man,"9").start();
    new Thread(man,"10").start();
    
}

}

    class People1 implements Runnable{

   

          Object lock =new Object();

     public void run(){

              synchronized(lock){

                 System.out.println(Thread.currentThread().getName());

                 try{

                Thread.sleep(2000);

               

                 }catch(Exception e){

                e.printStackTrace();

                 }

     }

    }

}