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   ► KBProgrammingC++Standard C++C++ OOP   Print This     
 
C++ OOP:
C++ Member Visibility
 
Posted 13 years ago on 1/3/2009
C++ Code Snippet:
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KB101491

General Info: Class Visibility Specifiers

In OOP languages, members of a class have a specific scope that indicates visibility. Standard visibility includes private, protected, and public. Private members are usable by the defining class only (fully encapsulated). They are invisible outside of the class except by friendly classes. Protected members are usable by the defining class and descendant classes only (plus friendly classes). Public members are usable wherever its class can be referenced.

Languages Focus: Member Visibility

Traditional member visibility specifiers for fully OOP languages are private, protected, and public. Many modern OOP languages implement additional member visibilities.

Additional member modifiers are documented under the Member Modifiers topic.

C++ Member Visibility

C++ implements class and member visibility specifiers traditionally. Note the colon at the end of each visibility specifier and the semi-colon at the end of the class (the end of the statement).

Syntax Example:
class Cyborg: Public AParentClass {
public:
 
protected:
 
private:
};

More Info

Definition:  Class Visibility Specifiers

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Code Contributed By Mike Prestwood:

Mike Prestwood is a drummer, an author, and creator of the PrestwoodBoards online community. He is the President & CEO of Prestwood IT Solutions. Prestwood IT provides Coding, Website, and Computer Tech services. Mike has authored 6 computer books and over 1,200 articles. As a drummer, he maintains play-drums.com and has authored 3 drum books. If you have a project you wish to discuss with Mike, you can send him a private message through his PrestwoodBoards home page or call him 9AM to 4PM PST at 916-726-5675 x205.

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