Basic Calculator + Source!

[SufyanGujar]

Hi Guys!

Yeh mera calculator aur source file hai.
Basically you will see use of for and while loop
as well as Switch statements.

Source Code:

#include <cstdlib>
#include <iostream>
 
using namespace std;
 
int main()
{
    double num;
    double num2;
    char choice;
    for (;;){
     do {
    cout<<"Welcome to Saif's Calculator\n\n";
    cout<<"Please select options by entering the number. To Exit/Quit press 'Q'.\n";
    cout<<"1 - Addition\n";
    cout<<"2 - Subtraction\n";
    cout<<"3 - Division\n";
    cout<<"4 - Multiplication\n";

    cin>>choice;
    } while ( choice < '1' || choice > '4' && choice != 'q');
    if (choice == 'q') break;
    switch (choice) {
           case '1':
                cout<<"Please enter First Number\n";
                cin>>num;
                cout<<"Now Enter Second Number to Add.\n";
                cin>>num2;
                cout << "Ans = ";
                cout<<num + num2 << endl;
                
                break;
           case '2':
                cout<<"Please enter First Number\n";
                cin>>num;
                cout<<"Now Enter Second Number subtract.\n";
                cin>>num2;
                cout << "Ans = ";
                cout<<num - num2;
                cout<<"\n";
                break;
           case '3':
                cout<<"Please enter First Number\n";
                cin>>num;
                cout<<"Now Enter Second Number to divid\n";
                cin>>num2;
                cout << "Ans = ";
                cout<<num / num2;
                cout<<"\n";
                break;
           case '4':
                cout<<"Please enter First Number\n";
                cin>>num;
                cout<<"Now Enter Second Number to multiply\n";
                cin>>num2;
                cout << "Ans = ";
                cout<<num * num2;
                cout<<"\n";
                break;

           default:
                    cout<<"There is no such option.";
                    
                }
 
}
return 0;


}

Link for Calculator Excuteable file(.exe) and source file(.cpp).
Link -->C++ Calculator and Source file

Aap khud bhe compile kar saktein hain. Hope you Guys Like it.
Thnx

[MailKing]

Thanks for sharing...

[Helper 558]

Yar yeh commond bil kul aisy he type karni hy kia koi btao i love programing

[oLd i$ gOlD]

too long codes not have any short codes?

[intelligent]

ya it is possible with a short code!

[SufyanGujar]

too long codes not have any short codes?

Well it dosent matter how long code is,
if u understand the code u will find it
very easy, anyway here is simplest
as well as commented code, all u gta
do is add cout statements where ever u
want to;

#include <iostream> // handle input and outputs

using namespace std; // using std, to avoid using std:: each time

int main()  // function starts
{
    double MyVar, MyVar2, Result; // Declared variables
    char Sign;                   // to handle calculations
    
    cin >> MyVar >> Sign >> MyVar2; // Getting input from user.
    
       if (Sign == '+') // Testing condition using
    {
     Result = MyVar + MyVar2; // do calculation according to condition
     }
     
     else if (Sign == '-')
    {
     Result = MyVar - MyVar2;
     }
     else if (Sign == '*')
    {
     Result = MyVar * MyVar2;
     }
     
     else if (Sign == '/')
    {
     Result = MyVar / MyVar2;
     }
     
     cout << "Answer: " << Result << endl; // finally print result of the calculations to screen

	system ("PAUSE"); // Pause the screen so that user can see the answer at end
	return 0; 

}

In case u dont know, writing after // is jst to tell u what it is,
that is not included in code.
if u r still confused then try this:

#include <iostream> 
using namespace std;

int main() { double MyVar, MyVar2, Result;
             char Sign;
    
    cin >> MyVar >> Sign >> MyVar2;
    
    if (Sign == '+') {Result = MyVar + MyVar2; }
     else if (Sign == '-') { Result = MyVar - MyVar2;}
     else if (Sign == '*') {Result = MyVar * MyVar2;}
     else if (Sign == '/') {Result = MyVar / MyVar2;}
     
     cout << "Answer: " << Result << endl;

	system ("PAUSE");
    return 0; }

-Saif

[SufyanGujar]

Yar yeh commond bil kul aisy he type karni hy kia koi btao i love programing

gi bhai, yeh same to same copy karna hai,

[heroofdikhan]

fazoooooooooooolll hai aik simple calculator aur itni long programming
programming ka pehla asul hee ye hai k short aur efficient flexible ho

[qaisarmughal83]

thanx jnab.

[intelligent]

switch statement ke bager b ho jana tha but good!

[blackberry]

thanks for sharing all source codes.... will compile it later ...

great job!!!

[M-Qasim]

Very Nice Sharing

Thanks for Sharing With Us