Foundation Kit – NSMutableArray

• NSMutableArray is subclass of NSArray.

• Both manage the ordered collection of objects.

• NSArray creates static arrays and NSMutable creates dynamic arrays.

• Like NSMutableString you need to give initial capacity while declaring NSMutableArray.

• + (id) arrayWithCapacity: (unsigned) numItems

• There are also methods to add and remove objects.

• (void) addObject: (id) anObject
• (void) removeObjectAtIndex: (unsigned) index