Sum of Digits

package exam;

import java.util.Scanner;

public class SumofDigits {
 public static void main(String[] args) {
  Scanner sc = new Scanner(System.in);
  int r,temp, s=0;
  System.out.println("Enter the number");
  int n=sc.nextInt();
  temp=n;
  while(n>0) {
   //n=n%10;
   
   s=s+n%10;
   n=n/10;
   
  }
  System.out.println(s);
  
}
}


o/p:-
Enter the number
456
15