code: public static void swap(int[] intArray1, int[] intArray2, int index) {
          TrivialSwap.swap(intArray1, index, intArray2, index);
      }
docs: Swap the elements of two int arrays at the same position
  
  @param intArray1 one of the arrays that will have one of its values swapped.
  @param intArray2 the other array that will have one of its values swapped.
  @param index the index of the arrays that will have their values swapped.