code: public static void swap(float[] floatArray1, float[] floatArray2, int index) {
          TrivialSwap.swap(floatArray1, index, floatArray2, index);
      }
docs: Swap the elements of two float arrays at the same position
  
  @param floatArray1 one of the arrays that will have one of its values swapped.
  @param floatArray2 the other array that will have one of its values swapped.
  @param index the index of the arrays that will have their values swapped.