How to find sum of the digits of a number in c#?

Sum of the Digits of a number

Program:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            int num, sum = 0;

            Console.WriteLine("Enter a number :\n");

            num = Convert.ToInt32(Console.ReadLine());

            if (num > 0)

            {

                for (int temp = num; temp != 0; temp /= 10)

                    sum += temp % 10;

                Console.WriteLine("Sum of the digits of  " + num + " is : " + sum);

            }

            else

                Console.WriteLine("Enter A valid Number :\n");

            Console.ReadKey();

        }

    }

}

  

Output:

Enter a number :

151

Sum of the digits of  151 is : 7