Take the 2-minute tour ×  Just wondering if there is an
equivalent to Java's ArrayList in Objective-C?  Or something
that can be used to store objects/data that does not have a set
size.   share|improve this question add comment  2 Answers  up
vote 13 down vote accepted  As others have pointed out,
NSArray/NSMutableArray are what you're looking for.  Coming from
the Java world, you may find that Cocoa's collection offerings
feel quite paltry. In fact, the functionality is quite
extensive. The NSArray, NSDictionary, and NSSet are, in fact,
class clusters, meaning that the public API is an "abstract"
class. When you initialize one of the collections, what you get
back is, in fact, a concrete implementation tailored for the
data you provide. These implementations can also change the
concrete implementation at run time if the data changes (e.g. it
grows in size). This is all possible due to Objective-C's much
more dynamic run time than Java's static typing (and security)
will allow. The class cluster strategy thu