Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
An NSMutableArray can be modified. An NSArray cannot be modified without recreating it.

That's about as far as my knowledge of the subject goes. If that's too basic, try a google search - it looks like there is alot of info there about it and you'll get your answers much faster.
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.