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iOS Objective-C Basics (Retired) Introduction to Objective-C Inheritance

Let's create a base class called 'Gem'. In 'Gem.h' define a class named 'Gem' which is a subclass of 'NSObject'.

How to do it? please

Gem.h
@interface Gem: Gem

@end
Ruby.h

Bling.h
@interface Bling : NSObject

@end