///////    Arg.java    ///////

class Arg
{  private native static double newAverage(int i, int j);

   static { System.loadLibrary("nave"); }

   public static void main(String[] args)
   {    double a = newAverage(12, 17);   
        System.out.println("Got average = " + a 
                    + " from native method.");
   }
}