Calculator in C++

 

#include <bits/stdc++.h>

#include <string.h>

using namespace std;

class call

{

    double a, b;

    string s, s1;

public:

    void stringcat(string q, string w)

    {

        s = q;

        s1 = w;

        cout << " " << s + s1 << endl;

    }

    void getdata(int x, int y)

    {

        a = x;

        b = y;

    }

    void calculate()

    {

        int m;

        cout << "Which operation you wanna do! " << endl;

        cout << 1 << ". Addition " << endl;

        cout << 2 << ". Subtration " << endl;

        cout << 3 << ". Multiplication " << endl;

        cout << 4 << ". Division " << endl;

        cout << 5 << ". All " << endl;

        cout << 6 << ". Exit " << endl;

        cin >> m;

        switch (m)

        {

        case 1:

            cout << "Addition of " << a << " and " << b << " is: " << a + b << endl;

            break;

        case 2:

            cout << "Subtration of " << a << " and " << b << " is: " << a - b << endl;

            break;

        case 3:

            cout << "Multiplication of " << a << " and " << b << " is: " << a * b << endl;

            break;

        case 4:

            cout << "Division of " << a << " and " << b << " is: " << a / b << endl;

            break;

        case 5:

            cout << "Addition of " << a << " and " << b << " is: " << a + b << endl;

            cout << "Subtration of " << a << " and " << b << " is: " << a - b << endl;

            cout << "Multiplication of " << a << " and " << b << " is: " << a * b << endl;

            cout << "Division of " << a << " and " << b << " is: " << a / b << endl;

            break;

        case 6:

            exit(0);

        }

    }

};

int main()

{

    call t;

    // int r, e;

    t.getdata(4,2);

    // cout << "Enter two Value: ";

    // cin >> r >> e;

    t.calculate();

 

    // cout<<"Enter the string: ";

    // cin>>s>>s1

    t.stringcat("aak", "ash");

    return 0;

}