Write a Java program to accept any number from the user and print the sum of the digits of the number. For example, if the user input is 456, the program should display the answer 15, which is 4+5+6

import java.util.Scanner;

public class Main
{
	public static void main(String[] args) {

   Scanner s = new Scanner(System.in);
   int  num, sum = 0, r; 
            System.out.println ("Enter a number : "); 
            num = s.nextInt();            
           while (num != 0) 
           {      r = num % 10;        
           num = num / 10;            
           sum = sum + r; 
               
           }
           System.out.println("Sum of Digits of the Number : "+sum); 
	}
}