CCS1203_A3_BasicCalcu_OutsideClass

#include <iostream>
#include <string>
using namespace std;

class myAdd
{
  public:
    int myAddi(int num1, int num2);
};

int myAdd::myAddi(int num1, int num2)
{
    int ans;
    ans = num1 + num2;
    cout << " " << num1 << " + " << num2 << " = " << ans;

    return 0;
}

class mySub
{
  public:
    int mySubd(int num1, int num2);
};

int mySub::mySubd(int num1, int num2)
{
    int ans;
    ans = num1 - num2;
    cout << " " << num1 << " - " << num2 << " = " << ans;

    return 0;
}

class myMul
{
  public:
    int myMult(int num1, int num2);
};

int myMul::myMult(int num1, int num2)
{
    int ans;
    ans = num1 * num2;
    cout << " " << num1 << " * " << num2 << " = " << ans;

    return 0;
}

class myDiv
{
  public:
    int myDivi(int num1, int num2);
};

int myDiv::myDivi(int num1, int num2)
{
    int ans;
    ans = num1 / num2;
    cout << " " << num1 << " / " << num2 << " = " << ans;

    return 0;
}

class myMod
{
  public:
    int myModu(int num1, int num2);
};

int myMod::myModu(int num1, int num2)
{
    cout << "- Quotient: " << num1 << " ÷ " << num2 << " = " << num1 / num2 << endl;
    cout << "- Remainder: " << num1 << " % " << num2 << " = " << num1 % num2;

    return 0;
}

int main()
{
    int ans = 0;
    int num1, num2;
    char sel;
    string dw;
    do
    {
        system("cls");
        cout << "------------------------------" << endl;
        cout << "----    Ry's Calculator   ----" << endl;
        cout << "------------------------------" << endl;
        cout << "- Enter first number: ";
        cin >> num1;
        cout << "- Enter second number: ";
        cin >> num2;
        cout << "------------------------------" << endl;
        cout << " Choose operation:\n-" << endl;
        cout << "- 1. + Addition" << endl;
        cout << "- 2. - Subtraction" << endl;
        cout << "- 3. * Multiplication" << endl;
        cout << "- 4. / Division" << endl;
        cout << "- 5. % Modulo" << endl;
        cout << "-\n Selected Operation: ";
        cin >> sel;
        cout << "------------------------------" << endl;
        if (sel == '1' || sel == '+')
        {
            myAdd myOb1;
            myOb1.myAddi(num1, num2);
        }
        if (sel == '2' || sel == '-')
        {
            mySub myOb2;
            myOb2.mySubd(num1, num2);
        }
        if (sel == '3' || sel == '*')
        {
            myMul myOb3;
            myOb3.myMult(num1, num2);
        }
        if (sel == '4' || sel == '/')
        {
            myDiv myOb4;
            myOb4.myDivi(num1, num2);
        }
        if (sel == '5' || sel == '%')
        {
            myMod myOb5;
            myOb5.myModu(num1, num2);
        }
        cout << "\n------------------------------" << endl;
        cout << "- Do you want to use the\n- calculator again??::  ";
        cin >> dw;
    } while (dw.compare("Y") == 0 || dw.compare("y") == 0 || dw.compare("yes") == 0 || dw.compare("Yes") || dw.compare("YES") == 0);

    return 0;
}