Overview

C++ program to calculate the sum of digits of a number. The program prompts the user to enter the number. For example: Enter number: 7865 The output should be  7+ 8 + 6 + 5 = 26

C++ Program

#include 
#include 
#include 
using namespace std;
int main()
{
    int sumOfDigits;
    int quotient;
    int digit;
    int number;


    cout << "Enter a positive number:= "; cin >> number;
    sumOfDigits =0;
    if (number>=0)
    {
        quotient =number;
        while (!(quotient==0))
        {
            digit =quotient % 10;
            sumOfDigits =sumOfDigits+digit;
            quotient =floor(quotient/10);
        }
        cout << "Sum of digits of the number " << number << " is =: " << sumOfDigits << endl;
    }
    else
    {
        cout << "ERROR : Enter positive number" << endl;
    }

    return 0;
}

 

Sample Output

Sample output of the program is shown below: Enter a positive number:= 7865 Sum of digits of the number 7865 is =: 26   The IDE used in the program is Code:: Blocks. To download and install Code Blocks follow the link:

https://www.testingdocs.com/download-and-install-codeblocks/ For more information on Code Blocks IDE, visit the official website of Code blocks IDE: http://www.codeblocks.org/