C# Program to Find Sum of Digits of a Number Using Recursion

// C# program to find the sum of digits of a number
// using recursion
using System;

class GFG{
    
// Method to check sum of digit using recursion
static int SumOfDigit(int n)
{
    
    // If the n value is zero then we
    // return sum as 0.
    if (n == 0)
        return 0;
        
    // Last digit + recursively calling n/10
    return(n % 10 + SumOfDigit(n / 10));
}

// Driver code
public static void Main()
{
    int n = 123;
    int ans = SumOfDigit(n);
    
    Console.Write("Sum = " + ans);
}
}

// C# program to find the sum of digits of a number 
// using recursion
// Here, we take input from user
using System;

class GFG{
    
// Method to check sum of digit using recursion
static int SumOfDigit(int n)
{
    
    // If the n value is zero then we return sum as 0.
    if (n == 0)
        return 0;
        
    // Last digit + recursively calling n/10
    return (n % 10 + SumOfDigit(n / 10));
}

// Driver code
public static void Main()
{
    int number, res;
    
    // Taking input from user
    Console.WriteLine("Hi! Enter the Number: ");
    number = int.Parse(Console.ReadLine());
    res = SumOfDigit(number);
    
    // Displaying the output
    Console.WriteLine("Sum of Digits is {0}", res);
    Console.ReadLine();
}
}