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Objective C MCQs

What can you say about the code: NSString * str = [NSString stringWithFormat:@""]; [str release];

None of these

It is correct, everything will work fine

it will cause a SIGABRT when the enclosing method ends

It will cause the string to be released twice with undefined consequences when the surrounding autorelease pool is emptied

It will cause a SIGSEGV at [str release];

Answer

Correct Answer: It will cause the string to be released twice with undefined consequences when the surrounding autorelease pool is emptied

Explanation:

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Objective C Skill Assessment

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