Programming Example

Sum of digits program in C#

👁 310 Views

💻 Practical Program

📘 Step by Step Learning

We can write the sum of digits program in C# language by the help of loop and mathematical operation only.

Sum of digits algorithm

To get sum of each digit by C# program, use the following algorithm:

Step 1: Get number by user
Step 2: Get the modulus/remainder of the number
Step 3: sum the remainder of the number
Step 4: Divide the number by 10
Step 5: Repeat the step 2 while number is greater than 0.

Let's see the sum of digits program in C#.

Program Code

using System;  
  public class SumExample  
   {  
     public static void Main(string[] args)  
      {  
       int  n,sum=0,m;         
       Console.Write("Enter a number: ");      
       n= int.Parse(Console.ReadLine());     
       while(n>0)      
       {      
        m=n%10;      
        sum=sum+m;      
        n=n/10;      
       }      
       Console.Write("Sum is= "+sum);       
     }  
  }

Output

Output 1:
Enter a number: 23  
Sum is= 5

Output 2:
Enter a number: 624       
Sum is= 12

Explanation

None

How to learn from this program

First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.

Practice suggestion

After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.