Thread: How to Input questions Into This C++ Quiz Maker?

I'm working on a quiz project in C++ at the moment, and I'm confused as to how to make some of it work. I have a class (quiz) which sets up the rules for how the quiz works. It looks like this:

Code:

class quiz
{
private:
    //how many questions
    int num_q;
    char answer[50];
    string question[50];

    int pom;
    string plus;
    string minus;

public:
    quiz()
    {
        pom =0;
    }
    void set_pom_answers(string pluss, string minuss)
    {
        plus = pluss;
        minus = minuss;
    }
    void set_num_q(int num_qq)
    {
        num_q = num_qq;
    }
    //Question_Number = question number, ca = correct answer, and q = question
    void set_q_a(intQuestion_Number, string q,char ca)
    {
        question[Question_Number-1]= q;
        answer[Question_Number-1]= ca;
    }
    void run_quiz()
    {
        char ans;
        for(int i =0; i < num_q; i++)
        {
            cout << question[i]<<": ";
            cin >> ans;
            if(ans == answer[i])
            {
                cout <<"Correct! good for you!"<< endl;
                pom = pom +1;
            }
            else
            {
                cout <<"Wrong. :("<< endl;
                pom = pom;

            }
            system("pause");
            system("cls");
        }
        if(pom >=(num_q /2))
        {
            cout << plus << endl;
            cout <<"your score was "<< pom << endl;
        }
        elseif(pom <(num_q /2))
        {
            cout << minus << endl;
            cout <<"your score was "<< pom << endl;
        }
        else
        {
            cout <<"input not recognised"<< endl;
        }
        system("pause");
    }

};

To run a quiz using this, you use a format like this in Main():

Code:

        quiz Politics;
        Politics.set_num_q(10);
        Politics.set_pom_answers("You're good at Politics.","Revise more!");
        Politics.set_q_a(1,"Michael Fallon is the current foreign secretary: [t]rue or [f]alse",'f');
        Politics.set_q_a(2,"Tony Blair was PM from 1996-2007: [t]rue or [f]alse",'f');
        Politics.set_q_a(3,"Michael Gove is the current education secretary : [t]rue or [f]alse",'f');
        Politics.set_q_a(4,"Teresa May is the current home secretary: [t]rue or [f]alse",'t');
        Politics.set_q_a(5,"Owen Jones is a blairite: [t]rue or [f]alse",'f');
        Politics.set_q_a(6,"Nick Robinson is the BBC's political editor: [t]rue or [f]alse",'f');
        Politics.set_q_a(7,"David Cameron is a eurosceptic: [t]rue or [f]alse",'t');
        Politics.set_q_a(8,"Matthew Handcock is a Tory MP: [t]rue or [f]alse",'t');
        Politics.set_q_a(9,"Jonathon Woodcock is a Labour MP: [t]rue or [f]alse",'t');
        Politics.set_q_a(10,"David McDonell is the current shadow chancellor: [t]rue or [f]alse",'f');

The above works absolutely fine when I run it using Politics.run_quiz().
The issue is that I want to create a menu that allows me to make or take the quizzes, and I am confused as to how I code the maker part. In the end I want to save this information to a file, and when the user selects 'take' in the menu, they will load this file and the quiz will be run from it. So far, I have this just as an example to illustrate what I want:

Code:

int main()
    {

        intChoice;

        do{
            cout <<"Would you like to:\n\n"<<"1)Make a quiz?\n"<<"2) Take a quiz?\n"<<"3) Quit?\n\n";
            cin >>Choice;
        }while(Choice>3);       

        if(Choice==1){
            string Quiz_Name;
            cout <<"What is the name of this quiz?\n";
            cin >>Quiz_Name;

            intNum_of_Qs;
            cout <<"How many Questions should there be?\n";
            cin >>Num_of_Qs;

            string Answer_Plus;
            cout <<"What message should be displayed if the score is above 50%?\n";
            cin >>Answer_Plus;

            string Answer_Minus;
            cout <<"What message should be displayed if the score is less that 50%?\n";
            cin >>Answer_Minus;

            /*Here I would like to add all the elements together, along with the questions and answers. for example:

            quiz Quiz_Name;
            Quiz_Name.set_num_q(Num_of_Qs);
            Quiz_Name.set_pom_answers(Answer_Plus, Answer_Minus);

            for (int j = 1; j <= Num_of_Qs; j++) {
            Quiz_Name.set_q_a(j, [The user inputs a question], [the user inputs an answer])
            }

            or something along those lines? How would I make something like this work?

            */


        }

        if(Choice==2){
            Politics.run_quiz();
        }

        if(Choice==3){
            return0;
        }

    }

I have no idea whether this is the best way to go about it or not? Could someone please help me work out how to make a quiz using user inputs?
Thanks!

File IO is almost the same as console IO for the user.

Code:

std::ifstream in("questions.txt");
if (!in) //some problem with file, maybe doesn't exist.

Now use 'in' the same way you use cin.
Just discard the output prompts.