What is synchronized() block in objective c? What is the use of that?
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Are the nsmanagedobjectcontext queues serial or concurrent?
What is strong in ios?
Explain difference between nil and nil?
Assume that your app is running in the foreground but is currently not receiving events. In which sate it would be in?
Difference between nil and Nil.
Whats the difference between NSArray and NSMutableArray?
What is singleton class in ios?
What is difference between weak and strong in ios?
Is it possible to write a program without using nib file
How many bytes we can send to apple push notification server?
Who is the founder of ios?
Explain ios multitasking?