Elance Exams Answers PDF file

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The delegate design pattern is common in objective-c. Why should you use this ?

The delegate receive application related event, such as the applicationDidFinishLaunching or applicationDidEnterBackground
To minimize the memory footprint of your application by delegating the allocation of large object to a special manager called delegate
To customize (or "delegate") the behavior of a class without having to subclass it, and define clearly what can be modified.
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