Array of int rotation to left and right by d elements

Author: Antesh Sharma

src/main/java/com/antesh/problems/ArrayRotation.java

@@ -20,17 +20,20 @@ public static void rotateRight(int[] arr, int d) {
         int n = arr.length;
         int j = 0;
         while (j < d) {
-            int temp = arr[n - 1];
-            for (int i = 0; i < n; i++) {
-                int current = arr[i];
-                arr[i] = temp;
-                temp = current;
-
-            }
+            rotateByOnePosition(arr, n);
             j++;
         }
     }
 
+    private static void rotateByOnePosition(int[] arr, int n) {
+        int temp = arr[n - 1];
+        for (int i = 0; i < n; i++) {
+            int current = arr[i];
+            arr[i] = temp;
+            temp = current;
+        }
+    }
+
     public static void rotateLeft(int[] arr, int d) {
         if (arr == null || arr.length == 0) {
             return;