What is differences between nsnull and nil in objective c?
What is a delegate objective c?
Does objective c support multiple inheritance?
Is objective c better than swift?
What is objective c runtime?
Is objective c better than c++?
Why we use synthesize in objective c?
How to call methods in objective c?
What is property in objective c?
What is the difference between #import and #include in objective-c?
What is mark and sweep algorithm?
What is property classification?
Why swift is faster then objective c?
How does dispatch_once manages to run only once?
What is instancetype?