C++17 Quick Syntax Reference: A Pocket Guide to the Language, APIs and Library

© Mikael Olsson 2018

Mikael OlssonC++17 Quick Syntax Referencehttps://doi.org/10.1007/978-1-4842-3600-0_12

12. Classes

Mikael Olsson¹ 

(1)

Hammarland, Finland

 

A class is a template used to create objects. To define a class, you use the keyword class followed by a name, a code block, and a semicolon. The naming convention for classes is mixed case, meaning that each word should be initially capitalized.

class MyRectangle {};

Class members can be declared inside the class; the two main kinds are fields and methods. Fields are variables and they hold the state of the object. Methods are functions and they define what the object can do.

class MyRectangle

{

  int x, y;

};

Class Methods

A method belonging to a class is normally declared as a prototype inside ...