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Daniel Kokin
1,496 PointsQuiz confusion about data types
Question 1: NSArrays and (NSMutableArrays) can hold: correct answer: NSStrings and NSDictionaries wrong answer: All of the above (which includes primitives, and such)
However, in question 4: An individual NSArray (or NSMutableArray) can hold: correct answer: All of the above (which includes: any type of object, any number of elements, the element repeated...
How is this possible if the NSArray cannot hold primitives. Isn't a primitive also an object? Or am getting caught in a trick question that shows I'm confused about scalar data types and objects?
1 Answer
Abirbhav Goswami
15,450 PointsUnfortunately, primitive types are not objects. So int, float, char etc. are scalar C types. They do not have properties or methods linked to them. So that's the reason NSArrays and NSDictionaries cannot hold them. Because they aren't objects.
However, a NSArray can hold multiple copies of the same object, and can hold any number of elements that the memory allows.
Daniel Kokin
1,496 PointsThank you, Abirbhav. I appreciate the response.
Daniel Kokin
1,496 PointsDaniel Kokin
1,496 PointsSorry about the structure of my sentences. My formatting was changed after I posted the question.