public static void displayArray(int array[], int first, int last) 
{
   if (first == last)
      System.out.print(array[first] + " ");
   else 
   {
      int mid = (first + last) / 2;
      displayArray(array, first, mid);
      displayArray(array, mid + 1, last);
   } // end if
} // end displayArray
// Version 4.0