/** * Ensures that {@code index} specifies a valid <i>element</i> in an array, list or string of size * {@code size}. An element index may range from zero, inclusive, to {@code size}, exclusive. * * @param index a user-supplied index identifying an element of an array, list or string * @param size the size of that array, list or string * @return the value of {@code index} * @throws IndexOutOfBoundsException if {@code index} is negative or is not less than {@code size} * @throws IllegalArgumentException if {@code size} is negative */ public static int checkElementIndex(int index, int size) { return checkElementIndex(index, size, "index"); }