hw14_9.java

JAVA 2面向对象程序设计(习题参考答案9-17).rar

class ctest extends Thread
{
   private String id;
   public ctest (String str)
   {
      id=str;
   }
   public void run()
   {
      for(int i=0;i<4;i++)
      {
         for(int j=0;j<100000000;j++);   
         System.out.println(id+" is running..");
      } 
   }
}

public class hw14_9
{
   public static void main(String args[])
   {
      ctest dog=new ctest("doggy");
      ctest cat=new ctest("kitty"); 
      ctest pig=new ctest("piggy");
      ctest pny=new ctest("ponny");
      dog.start();
      cat.start();
      pig.start();
      pny.start();
   }
}