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Here we are going to create a sample of User Interaction to display the text on UILabel after clicking on UIButton.
Fast enumeration is an Objective-C's feature that helps in enumerating through a collection.
Dynamic bindingAlso called "late binding," it is the linking of a routine or object at runtime based on the conditions at that moment.
if you wants to add some more functionality in the class then use Categories.
Polymorphism is a concept where objects can inherit functionality from a base class, and change it to provide specialised behaviour.
The command line arguments are handled using main() function arguments ...
Objective-C programs use NSError objects to convey information about runtime errors that users need to be informed about.
Exceptions are used to inform the programmer about something that went wrong, while errors are used to inform the user that a requested action could n
Type Casting a process converting one type of object to another type of object. Every language a semantics of TypeCasting. Today we will discuss about
The typedef keyword lets you create new data types or redefine existing ones.
Objective-C Preprocessor is just a text substitution tool and it instructs compiler to do required pre-processing before actual compilation.
Unions are syntactically similar to structs, but inside there are not three pieces of memory, only one.
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