What is category in objective c?

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What objective-c program consists of?

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What is the purpose of managed object context (nsmanagedobjectcontext) in objective-c and how does it work?

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What is nonatomic and strong in objective c?

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Why swift is faster then objective c?

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How to add object to nsarray objective c?

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Are id and instancetype same? If not, what are differences between them?

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How do I import a swift file into objective c?

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Ns object is a parent class or derived class?

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

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How to print string in objective c?

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How do you define a block?

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Is objective c better than c++?

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Is a fact objective?

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Explain application life cycle or application states?

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