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Objective-C Interview Questions
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What is toll-free bridging and when is it useful?

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What are nsautoreleasepool?

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Explain types of protocol?

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What is the isa member?

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What happens if you add your just created object to a mutable array, and you release your object?

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Can we implement dealloc in arc? If yes, what is the need to do that?

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Who calls dealloc method? Can we implement dealloc in arc? If yes, what is the need to do that?

 1

How we can layout subviews in a view?

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Explain application life cycle or application states?

 1

Who calls dealloc method? Can we implement dealloc in arc?

 1

What is an extension?

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What is posing in objective c?

 1

Can we have multiple uiwindows in ios?

 1

Explain the difference between #import and #include in objective-c?

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What is the difference between #import and #include in objective-c?

 1

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Un-Answered Questions { Objective-C }

Does objective c have multiple inheritance?

1

How do you write an objective statement?

1

Mention whether nsobject is a parent class or derived class.

1

What is difference between objective c and c?

1

What does the gc () method?

1




How does dispatch_once manages to run only once?

1

How declare methods in objective c?

1

What do you mean by cocoa?

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Is objective c superset of c?

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What are properties and instance variables in objective c and swift?

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Does objective c have pointers?

1

What is the difference between weak and unowned?

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When should you call dealloc method?

1

What is the difference between string and nsstring?

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What is difference between array and nsarray?

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