dwolfson20

That's the easiest and most effective solution, I think. But we could also do with an optional visual cue, since a lot of people want it.

I am not sure what you mean that OOP is intuitively harder to understand than functional programming. In fact, OOP was explicitly conceived as a more intuitive alternative to traditional languages, and most modern languages implement its core concepts in some way. Java is classic OOP, and is a good way to learn these concepts, so you may want to begin there.

Of course, I agree with everyone that you shouldn't be worrying about these things. You can learn many of these things through experience, and the bonus is you can get stuff done at the same time.