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Functions and Classes
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The primary motivation of using classes in a program is to create objects as complete as possible. An object must be able to handle its own business so that the other objects of the program or of another program would only need to know which object can take care of a particular need they have. A regular variable, as a member of an object, cannot handle assignments. This job is handled by particular functions declared as members of a class. A function as a member of a class is also called a Method. On this site, the words "method" and "function", when associated with a class, will refer to the same thing: a member function of the class.
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Introduction to Classes
C and C++ / Functions and Classes
C++ offers three techniques of defining a new data type: a structure, a class, and a union. These are also referred to as composite data types. Learn: Object Creation and Access, Global Objects, Access to a Member of a Class, Type-Defining a Class, Class Forward Definition, The Access Levels of a Class, Initializing Each Member of a Class, Initializing an Object as a Whole, Static Member Variables, Techniques of Creating a Classic C Styles Object, References, Constant Objects and more.
Site: www.functionx.com
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