Maybe the question is a little ambiguous...sorry
I'll try to explain better.
In exercise 5, we have a AddressBook class that contains a NSMutableArray (book).
Inside book there are some objects: AddressCards.
Each AddressCard object has got some instances variables that could be name, address, eMail ...
My question is: does NSArray(or NSMutableArray) have a method to obtain the name of the instance variables of AddressCards?
In my mind it must exist! because AddressBook has got a reference to each object, so it must retrieve its instance variable....
thanks a lot!!