public class TimerDriver

   {

   public static void main( String args[] )

      {

      Stopwatch seiko = new Stopwatch();

      seiko.startTimer();

      for(int ctr = 0; ctr < Integer.MAX_VALUE; ctr++)

         {

         // what do you want to time??   

         // do nothing    

         }   

      seiko.endTimer();

      seiko.printElapsedTime();

      } // end method main          

   } // end class TimerDriver

public class Stopwatch

  {

  private long startTime;

  private long endTime;

  public Stopwatch()

     {

     startTime = 0;

     endTime = 0;

     } // end constructor StopWatch

  public void startTimer()

     {

     startTime = System.nanoTime();

     } // end method startTimer

 public void endTimer()

     {

     endTime = System.nanoTime();

     } // end method endTimer

 public void printElapsedTime()

     {

     System.out.println( "Elapsed time in nanoseconds is: " + (endTime - startTime));

     } // end method printElaspedTime

  } // end class Stopwatch