LeetCode: Rotate Array

LeetCode: Rotate Array 

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/**
 * Created by hzhou on 4/22/15. [email protected]
 */
public class RotateArray {
    public void rotate(int[] nums, int k) {
        if (nums == null || nums.length < 2) {
            return;
        }
        k = k % nums.length;
        int[] tmp = new int[k];
        System.arraycopy(nums, nums.length - k, tmp, 0, k);
        System.arraycopy(nums, 0, nums, k, nums.length - k);
        System.arraycopy(tmp, 0, nums, 0, k);
    }
}