Write a program to find Reverse of any number?(123=321)

55)       Write a program to find Reverse of any number?(123=321)

import java.util.*;

public class Reverse_number

{

    public static void main(String args[ ])

   {

              Scanner sc = new Scanner (System.in);

              System.out.println("Enter a number");

              int k = sc.nextInt();

              int r = 0;

              while(k>0)

              {

              int d = k%10;

              r=(r*10)+d;

              k=k/10;

              }

              System.out.println("REVERSE number = "+r);

   }

}

Output : 

reverse-number

Write a program to input a number and check whether it is Neon Number or not?(9² = 81 , 8+1=9 , 9=9)