G.1. ATM Case Study Implementation

This appendix contains the complete working implementation of the ATM system that we designed in the "Software Engineering Case Study" sections found at the ends of Chapters 17, 9 and 13. The implementation comprises 877 lines of C++ code. We consider the classes in the order in which we identified them in Section 3.11:

  • ATM
  • Screen
  • Keypad
  • CashDispenser
  • DepositSlot
  • Account
  • BankDatabase
  • transaction
  • BalanceInquiry
  • Withdrawal
  • Deposit

We apply the guidelines discussed in Section 9.12 and Section 13.10 to code these classes based on how we modeled them in the UML class diagrams of Fig. 13.28 and Fig. 13.29. To develop the definitions of classes' member functions, we refer to the activity diagrams presented in Section 5.11 and the communication and sequence diagrams presented in Section 7.12. Note that our ATM design does not specify all the program logic and may not specify all the attributes and operations required to complete the ATM implementation. This is a normal part of the object-oriented design process. As we implement the system, we complete the program logic and add attributes and behaviors as necessary to construct the ATM system specified by the requirements document in Section 2.8.

We conclude the discussion by presenting a C++ program (ATMCaseStudy.cpp) that starts the ATM and puts the other classes in the system in use. Recall that we are developing a first version of the ATM system that runs on a personal computer and uses the computer's keyboard and monitor to approximate the ATM's keypad and screen. We also only simulate the actions of the ATM's cash dispenser and deposit slot. We attempt to implement the system, however, so that real hardware versions of these devices could be integrated without significant changes in the code.

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


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


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

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