Java: Rotate an Array to the left

Difficulty Level: MEDIUM

Problem Statement:

Given an array of integers arr[] of size N and an integer, the task is to rotate the array elements to the left by x positions.

Input:

arr[] = [1,5,8,9,2,5,7,4] , x=1

Output:

arr[] = [4,1,5,8,9,2,5,7]