Addition of Two Numbers Using Classes in C++

Write a program that will ask the user to give two numbers and then the program will compute the sum of the two given numbers and display the results on the screen using classes.

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Solution

#include <iostream>

// addition.cpp

// Author  : Jake Rodriguez Pomperada, MAED-IT, MIT, PHD-TM (CAR)

// Date    : August 11, 2023  Friday  9:48 AM

// Tools   : Codeblocks 20.03

// Website : http://www.jakerpomperada.com

// Email   : jakerpomperada@gmail.com

class Calculator {

public:

    // Constructor

    Calculator() {

        num1 = 0;

        num2 = 0;

    }

    // Member function to set the numbers

    void setNumbers(int n1, int n2) {

        num1 = n1;

        num2 = n2;

    }

    // Member function to perform addition

    int add() {

        return num1 + num2;

    }

private:

    int num1;

    int num2;

};

int main() {

    // Create an object of the Calculator class

    Calculator calc;

    int number1, number2;

    // Get input from the user

    std::cout << "\n\n\tAddition of Two Numbers Using Classes in C++\n\n";

    std::cout << "\tEnter first number   : ";

    std::cin >> number1;

    std::cout << "\n\tEnter second number  : ";

    std::cin >> number2;

    // Set the numbers in the calculator object

    calc.setNumbers(number1, number2);

    // Perform addition and display the result

    std::cout << "\n\tThe sum of " << number1;

    std::cout << " and " << number2  << " is " << calc.add() << "." <<std::endl;

    std::cout << "\n";

    std::cout << "\tEnd of Program\n\n";

    return 0;

}