Implement the following methods: retain, release, auto release in iOS operating system?

748

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What is dynamic in iOS operating system?

919

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What is atomic and nonatomic in iOS operating system? What is run loop in iOS ?

793

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What is a struct in iOS operating system?

720

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Explain the difference between NSOperationQueue concurrent and non-concurrent in iOS operating system?

802

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Which class will be subclassed in iOS operating system?

749

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What is view object in iOS operating system?

861

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Explain the options and bars available in xcode 4.x workspace window in iOS operating system

779

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What is the difference between retain & assign in iOS operating system?

959

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What is the difference between NSArray and NSMutableArray in iOS operating system?

745

---

What is the purpose of UIWindow object in iOS operating system?

785

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What is Automatic Reference Counting (ARC) in iOS operating system?

775

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Explain retain counts in iOS operating system?

869

---

What are all the newly added frameworks iOS 4.3 to iOS 5.0?

734

---

how you can delete a smart group created in Xcode?

842

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