What’s the contrast between active, inactive, not-running, background and suspended execution states?1
Explain the way messaging works in objective-c?
What does the objective c program fundamentally comprise of?
Can you retain delegates?
What are the advantages of swift over objective c?
What is the use of synchronized() block in objective c?
What is the difference between nsstring and string?
What does the gc () method?
What is the difference between property and instance variable?
What are the 5 principles of object oriented programming?
When might you use a cfarray/dictionary instead of a nsarray/dictionary?
What is gcd?
How much does m files cost?
What is 'protocol' on objective c?
Can protocols have properties?
What is block in objective c?