Object oriented programming - class design confusion

Question

I am trying to wrap my head around object oriented programming.

My understanding is that we have objects so we can design our programs to mirror real-life objects.

Answer 1

Assuming you were, say, writing a hungry people simulator, then I think it would make much more sense to, as you say, have a Human::Eat(Fruit f) function. Your Fruit might not have methods since Fruit doesn't do much on it's own, but it might have a calories property, and so on.