Function SumDigits - Practice Exercises C# Sharp

Lesson 5:

Functions

Exercise 5.17:

Function SumDigits

Objetive:

Create a function SumDigits that receives a number and returns any results in the sum of its digits. For example, if the number is 123, the sum would be 6.

Console.Write( SumDigits(123) );
6

using System;
public class FSumDigits
{
    public static int SumDigits(int n)
    {
        string number = Convert.ToString(n);

        int sum = 0;

        for (int i = 0; i < number.Length; i++)
            sum += Convert.ToInt32(number.Substring(i, 1));

        return sum;
    }

    public static void Main()
    {
        Console.WriteLine(SumDigits(123));
    }
}