What happens when you invoke a method on a nil pointer?
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Explain the options and bars available in xcode 4.x workspace window in iOS operating system
Explain xib?
What is retain in ios?
In a single model, can I have few entities in one sqlite db file and remaining in another sqlite db file?
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Explain what is ios?
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What is the biggest change with ios 7?
What is message forwarding?
What is sandbox in iOS operating system?
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