メソッド・プロパティ init alloc initialize? load? new copy retain release autorelease retainCount? dealloc? class superclass? isKindOfClass? isMemberOfClass? respondsToSelector? confirmsToProtocol? isEqual? description? ↑ Value Objects NSAffineTransform NSCalender? NSData > NSMutableData? NSDate > NSCalenderDate? NSDateComponents? NSDecimalNumberHandler? NSLocale? NSNull NSTimeZone? NSValue > NSNumber > NSD