Write a C++ program using the concept of OOP to find the summation of digits of a number

Write a C++ program using the concept of OOP to find the summation of digits of a number.

Algorithm:

1. Define a class Number with a private member variable num and a public member function getSumOfDigits().
2. In the constructor of the class, prompt the user to enter a number and store it in the num variable.
3. In the getSumOfDigits() function, initialize a variable sum to 0 and a variable temp to the value of num.
4. Use a while loop to iterate until temp is not equal to 0. In each iteration, add the last digit of temp to sum and divide temp by 10.
5. Return the value of sum as the summation of digits.
6. In the main() function, create an object of the Number class.
7. Use the object's getSumOfDigits() function to get the summation of digits in the number and print it.
8. Exit the program.

Coding:

#include <iostream>
using namespace std;
 
class Number {
    private:
        int num;
    public:
        Number() {
            cout << "Enter a number: ";
            cin >> num;
        }
        int getSumOfDigits() {
            int sum = 0;
            int temp = num;
            while (temp != 0) {
                sum += temp % 10;
                temp /= 10;
            }
            return sum;
        }
};
 
int main() {
    Number n;
    cout << "Sum of digits: " << n.getSumOfDigits() << endl;
    return 0;
}
 

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