Answer / Shobhit

An Objective-C program typically consists of at least one .h header file, one or more .m implementation files, and a main.m file where the execution begins.

What does nonatomic mean?

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What is objective c and swift?

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What is responder chain?

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What is the difference between typedef and enum?

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Distinguish between @synthesize and @dynamic in objective –c?

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When is toll-free bridging useful?

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What is difference between extern and global?

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What is the major difference between objective c and swift?

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What do you understand by protocol?

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

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What is a selector objective c?

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Is nsobject a parent class or a derived class?

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