C++ Neural Networks and Fuzzy Logic: Preface

Object A accessible to Object B but not to Object C. This access qualification can also be used for data

members inside an object. The encapsulation of data and the intended operations on them prevents the data

from being subjected to operations not meant for them. This is what really makes objects reusable and

portable! The operations are usually given in the form of functions operating upon the data items. Such

functions are also called methods in some object−oriented programming languages. The data items and the

functions that manipulate them are combined into a structure called a class. A class is an abstract data type.

When you make an instance of a class, you have an object. This is no different than when you instantiate an

C++ Neural Networks and Fuzzy Logic:Preface

Chapter 2 C++ and Object Orientation

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integer type to create variables i and j. For example, you design a class called ElectronicBook, with a data

element called ArrayofPages. When you instantiate your class you make objects of type ElectronicBook.

Suppose that you create two of these called EB_Geography and EB_History. Every object that is

instantiated has its own data member inside it, referred to by ArrayOfPages.