Objective-C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Objective-C Interview Questions

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Mention what is the primary use of the category in the objective-c?

Tell me about important protocol being used in objective c?

Can you differentiate polymorphism from abstraction?

What is the primary use of the category in the objective-c?

What do you mean by @synthesize and @dynamic in the objective-c?

What does the objective c program fundamentally comprise of?

Explain what do you mean by dot notation?

Can you please explain the way messaging works in objective-c?

Tell us the result when you invoke a particular method on a nil pointer?

Is objective-c a dynamic language?

What’s the contrast between utilizing a delegate and warning?

What’s the contrast between active, inactive, not-running, background and suspended execution states?

What do you mean by cocoa?

What is the principle distinction between the function calls and messages?

Does objective-c contain private strategies?

Un-Answered Questions { Objective-C }

How is #import different from #include?

What is umbrella header?

How to initialize nsmutabledictionary in objective c?

What is method swizzling in objective c and why would you use it?

What is autoclosure?

What is abi stability?

What is a selector objective c?

How to restart app in objective c?

Explain what are the attributes of category?

Can delegates be retained?

Does a thread created using performselectorinbackground:withobject: creates its own autorelease pool?

What are the delegate?

What is extern objective c?

What is differences between nsnull and nil in objective c?

What optional binding?

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