Objective-C calling method that been inherited from another class?

The first line should theoretically work, but you're not instantiating your JACenterViewController in such a way that viewDidLoad will be called - and therefor your CustomClass instance is not loaded.

Singleton: A class that always returns the same instances of itself. It provides a global access point for all the resources within the class.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.