![]() NSNumber is a subclass of NSValue that offers a value as any C scalar (numeric) type. What is the NSNumber subclass of NSValue? How to convert NSNumber to a different type?Īn NSNumber object initialized with a value of a particular type accessing the converted value of a different kind of type, such as unsigned int and float, will convert its stored value to that converted type in the following ways: As with any class cluster, subclasses of NSNumber must override the primitive methods of its superclass, NSValue. Initializes a newly allocated dictionary using the objects contained in another given dictionary. Initializes a newly allocated dictionary by placing in it the keys and values contained in another given dictionary. ![]() How does the NSDictionary create a new dictionary?Ĭreates a dictionary containing a given key and value. In Objective-C, the compiler generates code that makes an underlying call to the init (objects:forKeys:count:) method. In addition to the provided initializers, such as init (objects:forKeys:), you can create an NSDictionary object using a dictionary literal. ![]() How to create NSDictionary object in Objective-C?
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