Public static void rotateArray (int arr, int rotate) if arr isn't null then copy elements in positions arr, length - rotate to arr.length - 1 to positions 0 to rotate - 1: shift the elements originally in positions 0 to arr.length - rotate - 1 to the right. assume that 0 lessthanorequalto arr.length - 1 Suppose we have the following variables: int [] arr = {5, 6, 8, -1, 4, 77} and the rotate = 2. After calling the rotateArray method the contents of arr = {4, 77, 5, 6, 8, -1}: Start your method with the following conditional statement if (arr! = null){ Write your methods in HW1.java. This file includes a main method to test your code. You can find this file on Blackboard. Programming requirements: Use only one return statement in each method. Write comments that includes your name and a short description of each method