(Easy) Rotate Array - LeetCode

Description:

 

 

Solution:

class Solution {
    public void rotate(int[] nums, int k) {
        
     List<Integer> arr = new ArrayList<Integer>();
        
        for(int i = 0; i<nums.length;i++){
            
            arr.add(nums[i]);        
        }
        
         
        while(k>0){
            int tmp =arr.get(nums.length-1);
            arr.add(0,tmp);
            k = k-1;
        }
        
        for(int i = 0; i<nums.length; i++){
            nums[i] = arr.get(i);
        }
    }
}