What happens when you invoke a method on a nil pointer?
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What are some common execution states in ios?
Why do all model object attributes get marked with @dynamic and not synthesised?
How do I create a class in xcode?
What are the 7 osi layers?
What is category and extension in ios?
Explain commonly ios libraries
What is synchronous web request and asynchronous ?
Explain UIApplication life cycle
What is @synthesize in objective-c ?
Which programming languages are used for ios development?
. Name the framework that is used to construct application’s user interface for iOS.
Explain the difference between cocoa and cocoa touch?