Objective-C doesn't have the concept of real abstract class that you can't create instance of. Nor the concept of abstract Methods. this example shows how to solve this problem when you want to be sure that and Abstract class is never instantiated and abstract Methods must be Overridden.
Objective-C doesn't have the concept of real abstract class that you can't create instance of. Nor the concept of abstract Methods. this example shows how to solve this problem when you want to be sure that and Abstract class is never instantiated and abstract Methods must be Overridden.
Other