Cyclically Rotate an Array by One in Java

To rotate the contents of an array cyclically −

• create an empty variable. (temp)
• save the last element of the array in it.
• Now, starting from the nth element of the array, replace the current element with the previous element.
• Store the element in temp in the 1st position.

Example

 Live Demo

import java.util.Arrays;
import java.util.Scanner;
public class CyclicallyRotateanArray {
   public static void main(String args[]){
      Scanner sc = new Scanner(System.in);
      System.out.println("Enter the required size of the array ::");
      int size = sc.nextInt();
      int [] myArray = new int[size];
      System.out.println("Enter elements of the array");
      for(int i=0; i< size; i++){
         myArray[i] = sc.nextInt();
      }
      System.out.println("Contents of the array: "+Arrays.toString(myArray));
      int temp = myArray[size-1];
      for(int i = size-1; i>0; i--){
         myArray[i] = myArray[i-1];
      }
      myArray[0] = temp;
      System.out.println("Contents of the cycled array: "+Arrays.toString(myArray));
   }
}

Output

Enter the required size of the array ::
5
Enter elements of the array
14
15
16
17
18
Contents of the array: [14, 15, 16, 17, 18]
Contents of the cycled array: [18, 14, 15, 16, 17]