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Introduction

In this chapter, we continue our study of classes and data abstraction with several more advanced topics. We use const objects and const member functions to prevent modifications of objects and enforce the principle of least privilege. We discuss compositiona form of reuse in which a class can have objects of other classes as members. Next, we introduce friendship, which enables a class designer to specify non-member functions that can access class's non-public membersa technique that is often used in operator overloading (Chapter 11) for performance reasons. We discuss a special pointer (called this), which is an implicit argument to each of a class's non-static member functions that allows those member functions to access the correct object's data members and other non-static member functions. We then discuss dynamic memory management and show how to create and destroy objects dynamically with the new and delete operators. Next, we motivate the need for static class members and show how to use static data members and member functions in your own classes. Finally, we show how to create a proxy class to hide the implementation details of a class (including its private data members) from clients of the class.

Recall that Chapter 3 introduced C++ Standard Library class string to represent strings as full-fledged class objects. In this chapter, however, we use the pointer-based strings we introduced in Chapter 8 to help the reader master pointers and prepare for the professional world in which the reader will see a great deal of C legacy code implemented over the last two decades. Thus, the reader will become familiar with the two most prevalent methods of creating and manipulating strings in C++.

Introduction to Computers, the Internet and World Wide Web

Introduction to C++ Programming

Introduction to Classes and Objects

Control Statements: Part 1

Control Statements: Part 2

Functions and an Introduction to Recursion

Arrays and Vectors

Pointers and Pointer-Based Strings

Classes: A Deeper Look, Part 1

Classes: A Deeper Look, Part 2

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Templates

Stream Input/Output

Exception Handling

File Processing

Class string and String Stream Processing

Web Programming

Searching and Sorting

Data Structures

Bits, Characters, C-Strings and structs

Standard Template Library (STL)

Other Topics

Appendix A. Operator Precedence and Associativity Chart

Appendix B. ASCII Character Set

Appendix C. Fundamental Types

Appendix D. Number Systems

Appendix E. C Legacy Code Topics

Appendix F. Preprocessor

Appendix G. ATM Case Study Code

Appendix H. UML 2: Additional Diagram Types

Appendix I. C++ Internet and Web Resources

Appendix J. Introduction to XHTML

Appendix K. XHTML Special Characters

Appendix L. Using the Visual Studio .NET Debugger

Appendix M. Using the GNU C++ Debugger

Bibliography

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C++ How to Program
C++ How to Program (5th Edition)
ISBN: 0131857576
EAN: 2147483647
Year: 2004
Pages: 627
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