Objective-C (aClassName *)

Question

I\'m a kind of self-programmer-made-man, so I\'m missing some basic knowledge from time to time.

That\'s why I\'m unable to really define well the topic of my question,

Answer 1

It is type cast:

double x = 5.0;
int y = (int)x;

I don't know why it is there in your case, as far as I know that method returns id, so the cast is not necessary (even without it no compiler warning will be generated).

Regarding “where to find such information”: Objective-C/C++ are built upon C and C++ correspondingly, so I'd recommend to learn basics of those languages first.