What is the difference between underscore and self (i.e self.xx and _xx) ?
What do you mean by cocoa?
Who calls dealloc method? Can we implement dealloc in arc? If yes, what is the need to do that?
What is difference between objective c and swift?
Explain types of protocol?
Distinguish between @synthesize and @dynamic in objective –c?
What are blocks and how are they used?
What are the advantages of using objective-c?
Is objective c object oriented?
What is synthesize objective c?
Are id and instancetype same? If not, what are differences between them?
What is concept of property?
What is the difference between category and extension in objective c?
What is the difference between nsdictionary and nsmutabledictionary?
What is nonatomic in objective c?