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

Objective-C Interview Questions

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Explain what is protocol in objective-c?

What is toll-free bridging?

Explain what is @synthesize in objective-c?

Is objective c, a dynamic language? True/false, explain.

What is kvc and kvo? Give an example of using kvc to set value.

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

Can we create dynamic classes in objective c? If yes, explain how to create with a valid use case?

Who calls dealloc method?

What is responder chain?

What can’t we put into an array or dictionary?

Can I write some c++ function in same .m file?

Can we create dynamic classes in objective c?

What happen if we send any message to an object which is released?

Explain the difference between atomic and nonatomic synthesized properties.

How does dispatch_once manages to run only once?

Un-Answered Questions { Objective-C }

Explain what is dot notation?

Explain class definition in objective-c?

What are benefits of collections views?

Explain how to call a function in objective-c?

When would you use nsarray and nsmutablearray?

What is m file?

How to initialize nsmutabledictionary in objective c?

What happens when you create a block?

What is a class in objective c?

What is m script in matlab?

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

Can you use objective c in swift?

What is difference between objective c and swift?

Is c++ objective c?

What is a .m file?

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