Titlebook: Objective-C Quick Syntax Reference; Matthew Campbell Book 2013 Matthew Campbell 2013

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Hello World,Objective-C is a programming language that extends the C programming language to include object-oriented programming capabilities. This means that most classic C programming procedures are used in Objective-C programs. For the purposes of this book, you will need to have an idea of how C programming works.

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Variables,Objective-C stores information in variables. These are divided into two types: primitive types and composite types. Primitive variables store one piece of information, such as a number or a character. Composite variables store a set of information, such as three related numbers and a character.

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Operators,Operators are used to perform operations on values. You can do arithmetic, assignment, logical, and relational operations with operators.

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Objects,Objective-C objects are entities that contain both behavior and attributes in one place. Behaviors are coded in methods while attributes are coded in properties. Objects can also include private instance variables. Private instance variables are used when data storage is required, but not needed to be shared.

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