Question

I am building a simple calculator as a learning exercise and I have stumbled – I get the user input for the first number, but it fails to store the int for the second input – do I need to create objects? I assume this is an obvious problem…

//Simple calculator to work out the sum of two numbers (using addition)

#include <cstdlib>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
    cout << "Enter the first int: \n";
    int input1 = std::cin.get();

    cout << "Enter the second int: \n";
    int input2 = std::cin.get();


    cout << "The sum of these numbers is: " << input1 + input2;
    cout << "\n";


    system("PAUSE");
    return EXIT_SUCCESS;
}

Answer 1

cin.get() only retrieves one character of input. Why not use

int input1, input2;
cout << "Enter the first int: \n";
cin >> input1;
cout << "Enter the second int: \n";
cin >> input2;

Using std::cin this way (with operator>>) also takes care of any surplus newline or space characters a user entered.