例八.txt

这是一本java基础教程 对新手上路有很大帮助

public class Example8_8{
    public static void main(String args[]){
        ClassRoom room=new ClassRoom();
        room.zhangXiao.start();
        room.zhengMing.start();
        room.teacher.start();
    }
}
class ClassRoom implements Runnable{
    Thread zhangXiao,zhengMing,teacher;
    ClassRoom(){
       teacher=new Thread(this); 
       zhangXiao=new Thread(this); 
       zhangXiao.setName("张小");
       zhengMing=new Thread(this); 
       zhengMing.setName("郑明");
       teacher.setName("刘老师");
    } 
    public void run(){
       Thread thread=Thread.currentThread(); 
       if(thread==zhangXiao||thread==zhengMing){
           try{  System.out.println(thread.getName()+"休息10秒后再说问候");
                Thread.sleep(10000);
           }
           catch(InterruptedException e){
                System.out.println(thread.getName()+"被吵醒了");
           }
           System.out.println(thread.getName()+"说:早上好！"); 
       }
       else if(thread==teacher){
           for(int i=1;i<=3;i++){
              System.out.println(thread.getName()+"说:\t上课!");
              try{  Thread.sleep(500);
              }
              catch(InterruptedException e) {} 
           }
           zhengMing.interrupt();           //吵醒zhengMing
           zhangXiao.interrupt();           //吵醒zhangXiao
        }
    }
}