Does Objective-C have constructors and destructors?

What is the type of @selector(foo)?

What class will allow you to use one or more blocks concurrently?

What is @dynamic directive meaning in iOS?

Are integers full-fledged objects in Objective-C?

Assume ARC is enabled... What would be another way to write this: NSArray *array = [NSArray arrayWithObjects:@"One", @"Two", @"Three",nil];

Correct code to include C 'Header.h' header in Objective-C '.m' source file?

Correct name of memory management method?

Which are valid property annotations?

Which of the following is true?

If a is an integer, the expression !a (...)?