code: public static void swap(float[] floatArray1, float[] floatArray2) {     
          int minLength = Math.min(floatArray1.length, floatArray2.length);
          
          for(int i = 0; i < minLength; i++) {
              TrivialSwap.swap(floatArray1, floatArray2, i);
          }
      }
docs: Helper method that swaps all the elements of the arrays. This method runs in
  O(<code>Math.min(array1.length, array2.length</code>) time.
  
  @param floatArray1 one array that will have its values swapped.
  @param floatArray2 the other array that will have its values swapped.