Getting the priority in java pgm

Getting the priority

public class SimplePriorities extends Thread

{

   private int countDown = 5;

   private volatile double d = 0;

   public SimplePriorities(int priority)

  {

      setPriority(priority);

      start();

   }

   public String toString()

  {

      return super.toString() + ": " + countDown;

   }

   public void run()

  {

      while(true)

  {

         for(int i = 1; i < 100000; i++)

         d = d + (Math.PI + Math.E) / (double)i;

         System.out.println(this);

         if(--countDown == 0) return;

      }

   }

   public static void main(String[] args)

  {

      new SimplePriorities(Thread.Max_priority);

      for(int i = 0; i < 5; i++)

      new SimplePriorities(Thread.Min_priority);

   }

}