How to model a quiz-system in OOP?

I am just trying to make a quiz system for young people to learn road/traffic signs.The idea was also to make something in a way that i later can use the same system for other types of quizzes.

I have just started out, and this is what i have planned so far: (I am doing this in Java)

Class named Roadsign (name, type, description)
Class named Question (Roadsign, answer, options)
Class named Quiz (ArrayList, number of right answers, and so on..)

The idea is that i eventually can use any model, not just Roadsign, inside the Question class. Maybe it also can be done in such a way that you decide inside the Question class what attribute/member of the model class you wish to use as the answer.

I am unsure on how i would model such a system, especially on behalf of the Question class.

Hopes this makes sense, and that someone wants to share me some good ideas :)

Solution

If you want to model a quiz system where each question consists of an image (in your case Roadsign), a question and answer options, you could do it like that:

Class named QuestionImage(name, description)
Class named Question (QuestionImage, question, answer, options)
Class named Quiz (ArrayList, number of right answers, and so on..)

Each question could then have an image, a question (so that you can also ask questions unlike What does the image show?), one right answer, and several wrong answers.