Introduction
I have used Visual Studio 2012 for debugging purpose. But you can use any version of visul studio as per your availability..
using System; using System.Collections.Generic; using System.Linq; using System.Text; public class csharpExercise { static void Main(string[] args) { int num, total; //Reading number Console.WriteLine("Enter any number: "); num = Convert.ToInt32(Console.ReadLine()); //Adding sum of digit in total variable for (total = 0; num > 0; num = num / 10) total = total + (num % 10); //Printing sum of digit Console.WriteLine("Sum of digits: "+ total); Console.ReadLine(); } }