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Objective-C Interview Questions
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What are benefits of collections views?

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Explain the difference between uiwindow and uiview?

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What is kvc and kvo?

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How can we put nil it into dictionary/array?

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What is gcd?

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What does @synchronized() do?

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What are the size classes?

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Can you write setter method for a retain property?

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How to make a code snippet thread safe?

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What is delegate? Can delegates be retained?

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Explain when to use nsarray and nsmutablearray. Which one is faster and threadsafe?

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Explain what is #import?

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Mention whether nsobject is a parent class or derived class.

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Explain the difference in xib/storyboard vs nib?

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Why create a custom view?

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Un-Answered Questions { Objective-C }

What is property in objective c?

1

What is the difference between typedef and enum?

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Can I write some c++ function in same .m file? Will it compile? If no, what changes should I do to compile it?

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Is method and function same?

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Explain what is data encapsulation in objective-c?

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Why is objective c syntax so weird?

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How the class “implementation” is represented in objective-c?

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What is .m file in objective c?

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How to convert data to string in objective c?

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Can we create dynamic classes in objective c?

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How to create thread in objective c?

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Explain the difference between atomic and nonatomic synthesized properties.

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What is a selector objective c?

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What are blocks and how are they used?

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Who invented objective c?

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