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Paul Deitel
Deitel & Associates, Inc.

Harvey Deitel
Deitel & Associates, Inc.


Vice President and Editorial Director: Marcia J. Horton
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Credits and acknowledgments borrowed from other sources and reproduced, with permission, in this textbook appear
on page vi.
The authors and publisher of this book have used their best efforts in preparing this book. These efforts include the
development, research, and testing of the theories and programs to determine their effectiveness. The authors and publisher make no warranty of any kind, expressed or implied, with regard to these programs or to the documentation
contained in this book. The authors and publisher shall not be liable in any event for incidental or consequential damages in connection with, or arising out of, the furnishing, performance, or use of these programs.
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Many of the designations by manufacturers and sellers to distinguish their products are claimed as trademarks. Where
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Library of Congress Cataloging-in-Publication Data on file.
10 9 8 7 6 5 4 3 2 1
ISBN-10: 0-13-337933-7
ISBN-13: 978-0-13-337933-4


To our review team
Shay Friedman
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Stephen Hustedde
José Antonio González Seco
Shawn Weisfeld
We are grateful for your guidance and expertise.
Paul and Harvey Deitel



Trademarks
DEITEL, the double-thumbs-up bug and DIVE INTO are registered trademarks of Deitel and Associates,
Inc.
Microsoft® and Windows® are registered trademarks of the Microsoft Corporation in the U.S.A. and
other countries. This book is not sponsored or endorsed by or affiliated with the Microsoft Corporation.
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Throughout this book, trademarks are used. Rather than put a trademark symbol in every occurrence of
a trademarked name, we state that we are using the names in an editorial fashion only and to the benefit
of the trademark owner, with no intention of infringement of the trademark.


Contents
Chapters 24–35 and Appendices D–G are PDF documents posted online at the book’s
Companion Website (located at www.pearsonhighered.com/deitel/).

Preface
Before You Begin

1

Introduction to Computers, the Internet
and Visual C#

1.1
1.2
1.3
1.4

1.5
1.6
1.7
1.8

Introduction
Hardware and Moore’s Law
Data Hierarchy
Computer Organization
Machine Languages, Assembly Languages and High-Level Languages
Object Technology
Internet and World Wide Web
C#
1.8.1 Object-Oriented Programming
1.8.2 Event-Driven Programming
1.8.3 Visual Programming
1.8.4 An International Standard; Other C# Implementations
1.8.5 Internet and Web Programming
1.8.6 Introducing async/await
1.8.7 Other Key Contemporary Programming Languages
Microsoft’s .NET
1.9.1 .NET Framework
1.9.2 Common Language Runtime
1.9.3 Platform Independence
1.9.4 Language Interoperability
Microsoft’s Windows® Operating System
Windows Phone 8 for Smartphones
1.11.1 Selling Your Apps in the Windows Phone Marketplace
1.11.2 Free vs. Paid Apps
1.11.3 Testing Your Windows Phone Apps

Windows Azure™ and Cloud Computing
Visual Studio Express 2012 Integrated Development Environment

1.9

1.10
1.11

1.12
1.13

xix
xxxv
1
2
2
3
6
7
8
10
12
12
12
12
12
13
13

13

14
14
15
15
15
16
17
18
18
18
19
19


viii

Contents
Test-Drive in Visual Studio Express 2012 for Windows Desktop
Test-Drive in Visual Studio Express 2012 for Windows 8

1.14
1.15

Painter
Painter

2

Dive Into® Visual Studio Express 2012
for Windows Desktop


2.1
2.2
2.3
2.4

2.7
2.8

Introduction
Overview of the Visual Studio Express 2012 IDE
Menu Bar and Toolbar
Navigating the Visual Studio IDE
2.4.1 Solution Explorer
2.4.2 Toolbox
2.4.3 Properties Window
Using Help
Using Visual App Development to Create a Simple App that Displays
Text and an Image
Wrap-Up
Web Resources

3

Introduction to C# Apps

3.1
3.2
3.3
3.4

3.5
3.6
3.7
3.8
3.9
3.10

Introduction
A Simple C# App: Displaying a Line of Text
Creating a Simple App in Visual Studio
Modifying Your Simple C# App
Formatting Text with Console.Write and Console.WriteLine
Another C# App: Adding Integers
Memory Concepts
Arithmetic
Decision Making: Equality and Relational Operators
Wrap-Up

4

Introduction to Classes, Objects, Methods
and strings

2.5
2.6

4.1
4.2
4.3
4.4

4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12

Introduction
Classes, Objects, Methods, Properties and Instance Variables
Declaring a Class with a Method and Instantiating an Object of a Class
Declaring a Method with a Parameter
Instance Variables and Properties
UML Class Diagram with a Property
Software Engineering with Properties and set and get Accessors
Auto-Implemented Properties
Value Types vs. Reference Types
Initializing Objects with Constructors
Floating-Point Numbers and Type decimal
Wrap-Up

19
23

33
34
34
39
41

43
44
44
46
47
57
58

65
66
66
72
77
80
81
85
86
90
94

106
107
107
108
113
116
121
121
123
123

125
128
134


Contents

5

Control Statements: Part 1

5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
5.14

Introduction
Algorithms
Pseudocode
Control Structures

if Single-Selection Statement
if…else Double-Selection Statement
while Repetition Statement
Formulating Algorithms: Counter-Controlled Repetition
Formulating Algorithms: Sentinel-Controlled Repetition
Formulating Algorithms: Nested Control Statements
Compound Assignment Operators
Increment and Decrement Operators
Simple Types
Wrap-Up

6

Control Statements: Part 2

6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10

Introduction
Essentials of Counter-Controlled Repetition
for Repetition Statement
Examples Using the for Statement

do…while Repetition Statement
switch Multiple-Selection Statement
break and continue Statements
Logical Operators
Structured-Programming Summary
Wrap-Up

7

Methods: A Deeper Look

7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9

Introduction
Packaging Code in C#
static Methods, static Variables and Class Math
Declaring Methods with Multiple Parameters
Notes on Declaring and Using Methods
Method-Call Stack and Activation Records
Argument Promotion and Casting
The .NET Framework Class Library
Case Study: Random-Number Generation

7.9.1 Scaling and Shifting Random Numbers
7.9.2 Random-Number Repeatability for Testing and Debugging
Case Study: A Game of Chance; Introducing Enumerations
Scope of Declarations
Method Overloading
Optional Parameters

7.10
7.11
7.12
7.13

ix

142
143
143
144
144
146
148
152
154
158
166
171
171
174
175


189
190
190
191
195
199
201
209
211
216
221

231
232
232
234
236
240
241
242
243
245
249
250
250
255
258
260



x

Contents

7.14
7.15
7.16
7.17

Named Parameters
Recursion
Passing Arguments: Pass-by-Value vs. Pass-by-Reference
Wrap-Up

8

Arrays; Introduction to Exception Handling

8.1
8.2
8.3
8.4

8.5
8.6
8.7
8.8
8.9
8.10
8.11

8.12
8.13
8.14

Introduction
Arrays
Declaring and Creating Arrays
Examples Using Arrays
8.4.1 Creating and Initializing an Array
8.4.2 Using an Array Initializer
8.4.3 Calculating a Value to Store in Each Array Element
8.4.4 Summing the Elements of an Array
8.4.5 Using Bar Charts to Display Array Data Graphically
8.4.6 Using the Elements of an Array as Counters
8.4.7 Using Arrays to Analyze Survey Results; Introduction to
Exception Handling
Case Study: Card Shuffling and Dealing Simulation
foreach Statement
Passing Arrays and Array Elements to Methods
Passing Arrays by Value and by Reference
Case Study: GradeBook Using an Array to Store Grades
Multidimensional Arrays
Case Study: GradeBook Using a Rectangular Array
Variable-Length Argument Lists
Using Command-Line Arguments
Wrap-Up

9

Introduction to LINQ and the List Collection 351


9.1
9.2
9.3
9.4
9.5
9.6
9.7

Introduction
Querying an Array of int Values Using LINQ
Querying an Array of Employee Objects Using LINQ
Introduction to Collections
Querying a Generic Collection Using LINQ
Wrap-Up
Deitel LINQ Resource Center

10

Classes and Objects: A Deeper Look

10.1
10.2
10.3
10.4
10.5

Introduction
Time Class Case Study
Controlling Access to Members

Referring to the Current Object’s Members with the this Reference
Time Class Case Study: Overloaded Constructors

262
263
266
269

285
286
286
288
289
289
290
291
292
293
295
296
299
303
305
307
311
316
321
327
329
331


352
353
357
362
365
367
367

371
372
372
376
377
379


Contents
10.6
10.7
10.8
10.9
10.10
10.11
10.12
10.13
10.14

Default and Parameterless Constructors
Composition

Garbage Collection and Destructors
static Class Members
readonly Instance Variables
Data Abstraction and Encapsulation
Class View and Object Browser
Object Initializers
Wrap-Up

11

Object-Oriented Programming: Inheritance

11.1
11.2
11.3
11.4

Introduction
Base Classes and Derived Classes
protected Members
Relationship between Base Classes and Derived Classes
11.4.1 Creating and Using a CommissionEmployee Class
11.4.2 Creating a BasePlusCommissionEmployee Class without
Using Inheritance
11.4.3 Creating a CommissionEmployee–BasePlusCommissionEmployee
Inheritance Hierarchy
11.4.4 CommissionEmployee–BasePlusCommissionEmployee Inheritance
Hierarchy Using protected Instance Variables
11.4.5 CommissionEmployee–BasePlusCommissionEmployee Inheritance
Hierarchy Using private Instance Variables

Constructors in Derived Classes
Software Engineering with Inheritance
Class object
Wrap-Up

11.5
11.6
11.7
11.8

12
12.1
12.2
12.3
12.4
12.5

OOP: Polymorphism, Interfaces and
Operator Overloading
Introduction
Polymorphism Examples
Demonstrating Polymorphic Behavior
Abstract Classes and Methods
Case Study: Payroll System Using Polymorphism
12.5.1 Creating Abstract Base Class Employee
12.5.2 Creating Concrete Derived Class SalariedEmployee
12.5.3 Creating Concrete Derived Class HourlyEmployee
12.5.4 Creating Concrete Derived Class CommissionEmployee
12.5.5 Creating Indirect Concrete Derived Class
BasePlusCommissionEmployee


12.5.6 Polymorphic Processing, Operator is and Downcasting

xi
385
386
389
390
393
394
396
398
398

405
406
407
409
410
410
415
420
423
428
433
434
434
435

441

442
444
445
448
450
451
453
455
457
458
460


xii

Contents

12.8
12.9

12.5.7 Summary of the Allowed Assignments Between Base-Class
and Derived-Class Variables
sealed Methods and Classes
Case Study: Creating and Using Interfaces
12.7.1 Developing an IPayable Hierarchy
12.7.2 Declaring Interface IPayable
12.7.3 Creating Class Invoice
12.7.4 Modifying Class Employee to Implement Interface IPayable
12.7.5 Modifying Class SalariedEmployee for Use with IPayable
12.7.6 Using Interface IPayable to Process Invoices and Employees

Polymorphically
12.7.7 Common Interfaces of the .NET Framework Class Library
Operator Overloading
Wrap-Up

13

Exception Handling: A Deeper Look

13.1
13.2
13.3

Introduction
Example: Divide by Zero without Exception Handling
Example: Handling DivideByZeroExceptions and FormatExceptions
13.3.1 Enclosing Code in a try Block
13.3.2 Catching Exceptions
13.3.3 Uncaught Exceptions
13.3.4 Termination Model of Exception Handling
13.3.5 Flow of Control When Exceptions Occur
.NET Exception Hierarchy
13.4.1 Class SystemException
13.4.2 Determining Which Exceptions a Method Throws
finally Block
The using Statement
Exception Properties
User-Defined Exception Classes
Wrap-Up


12.6
12.7

13.4

13.5
13.6
13.7
13.8
13.9

14
14.1
14.2
14.3

14.4

Graphical User Interfaces with
Windows Forms: Part 1
Introduction
Windows Forms
Event Handling
14.3.1 A Simple Event-Driven GUI
14.3.2 Auto-Generated GUI Code
14.3.3 Delegates and the Event-Handling Mechanism
14.3.4 Another Way to Create Event Handlers
14.3.5 Locating Event Information
Control Properties and Layout


465
466
466
468
469
469
471
473
474
476
477
480

486
487
488
491
493
493
494
495
495
496
496
497
497
504
505
509
513


518
519
520
522
522
524
526
527
528
529


Contents
14.5 Labels, TextBoxes and Buttons
14.6 GroupBoxes and Panels
14.7 CheckBoxes and RadioButtons
14.8 PictureBoxes
14.9 ToolTips
14.10 NumericUpDown Control
14.11 Mouse-Event Handling
14.12 Keyboard-Event Handling
14.13 Wrap-Up

15

Graphical User Interfaces with
Windows Forms: Part 2

15.1

15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
15.10
15.11
15.12
15.13
15.14
15.15

Introduction
Menus

16

Strings and Characters: A Deeper Look

16.1
16.2
16.3
16.4
16.5
16.6
16.7
16.8

16.9
16.10
16.11

Control
Control
LinkLabel Control
ListBox Control
CheckedListBox Control
ComboBox Control
TreeView Control
ListView Control
TabControl Control
Multiple Document Interface (MDI) Windows
Visual Inheritance
User-Defined Controls
Wrap-Up
MonthCalendar

DateTimePicker

Introduction
Fundamentals of Characters and Strings
string Constructors
string Indexer, Length Property and CopyTo Method
Comparing strings
Locating Characters and Substrings in strings
Extracting Substrings from strings
Concatenating strings
Miscellaneous string Methods

Class StringBuilder
Length and Capacity Properties, EnsureCapacity Method and Indexer
of Class StringBuilder
16.12 Append and AppendFormat Methods of Class StringBuilder
16.13 Insert, Remove and Replace Methods of Class StringBuilder
16.14 Char Methods

xiii
533
536
539
547
549
551
553
556
559

569
570
570
579
580
583
587
591
594
598
603
609

614
621
626
630

638
639
640
641
642
643
646
649
650
651
652
653
655
657
660


xiv

Contents

16.15 (Online) Introduction to Regular Expressions
16.16 Wrap-Up

17


Files and Streams

17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11

Introduction
Data Hierarchy
Files and Streams
Classes File and Directory
Creating a Sequential-Access Text File
Reading Data from a Sequential-Access Text File
Case Study: Credit Inquiry Program
Serialization
Creating a Sequential-Access File Using Object Serialization
Reading and Deserializing Data from a Binary File
Wrap-Up

18

Searching and Sorting


18.1
18.2

18.4
18.5

Introduction
Searching Algorithms
18.2.1 Linear Search
18.2.2 Binary Search
Sorting Algorithms
18.3.1 Selection Sort
18.3.2 Insertion Sort
18.3.3 Merge Sort
Summary of the Efficiency of Searching and Sorting Algorithms
Wrap-Up

19

Data Structures

19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8


Introduction
Simple-Type structs, Boxing and Unboxing
Self-Referential Classes
Linked Lists
Stacks
Queues
Trees
19.7.1 Binary Search Tree of Integer Values
19.7.2 Binary Search Tree of IComparable Objects
Wrap-Up

20

Generics

20.1
20.2
20.3

Introduction
Motivation for Generic Methods
Generic-Method Implementation

18.3

662
663

669

670
670
672
673
682
691
695
701
702
706
708

715
716
717
717
721
726
726
730
734
740
741

746
747
747
748
749
762

766
769
770
777
782

789
790
791
793


Contents
20.4
20.5
20.6
20.7

Type Constraints
Overloading Generic Methods
Generic Classes
Wrap-Up

21

Collections

21.1
21.2
21.3

21.4

21.6
21.7

Introduction
Collections Overview
Class Array and Enumerators
Nongeneric Collections
21.4.1 Class ArrayList
21.4.2 Class Stack
21.4.3 Class Hashtable
Generic Collections
21.5.1 Generic Class SortedDictionary
21.5.2 Generic Class LinkedList
Covariance and Contravariance for Generic Types
Wrap-Up

22

Databases and LINQ

21.5

22.1
22.2
22.3
22.4
22.5


Introduction
Relational Databases
A Books Database
LINQ to Entities and the ADO.NET Entity Framework
Querying a Database with LINQ
22.5.1 Creating the ADO.NET Entity Data Model Class Library
22.5.2 Creating a Windows Forms Project and Configuring It to
Use the Entity Data Model
22.5.3 Data Bindings Between Controls and the Entity Data Model
22.6 Dynamically Binding Query Results
22.6.1 Creating the Display Query Results GUI
22.6.2 Coding the Display Query Results App
22.7 Retrieving Data from Multiple Tables with LINQ
22.8 Creating a Master/Detail View App
22.8.1 Creating the Master/Detail GUI
22.8.2 Coding the Master/Detail App
22.9 Address Book Case Study
22.9.1 Creating the Address Book App’s GUI
22.9.2 Coding the Address Book App
22.10 Tools and Web Resources
22.11 Wrap-Up

23

Web App Development with ASP.NET

23.1

Introduction


xv
796
798
799
808

814
815
815
818
821
821
826
828
833
834
836
840
843

849
850
851
852
856
857
858
862
864
869

870
871
874
879
880
881
883
884
885
889
889

897
898


xvi

Contents

23.2
23.3
23.4

Web Basics
Multitier App Architecture
Your First Web App
23.4.1 Building the WebTime App
23.4.2 Examining WebTime.aspx’s Code-Behind File
23.5 Standard Web Controls: Designing a Form

23.6 Validation Controls
23.7 Session Tracking
23.7.1 Cookies
23.7.2 Session Tracking with HttpSessionState
23.7.3 Options.aspx: Selecting a Programming Language
23.7.4 Recommendations.aspx: Displaying Recommendations
Based on Session Values
23.8 Case Study: Database-Driven ASP.NET Guestbook
23.8.1 Building a Web Form that Displays Data from a Database
23.8.2 Modifying the Code-Behind File for the Guestbook App
23.9 Online Case Study: ASP.NET AJAX
23.10 Online Case Study: Password-Protected Books Database App
23.11 Wrap-Up

899
900
902
904
913
914
918
925
926
927
928
932
933
935
940
941

942
942

Chapters on the Web

949

A

Operator Precedence Chart

950

B

Simple Types

952

C

ASCII Character Set

954

Appendices on the Web

955

Index


957

Chapters 24–35 and Appendices D–G are PDF documents posted online at the book’s
Companion Website (located at www.pearsonhighered.com/deitel/).

24

XML and LINQ to XML

25

Windows 8 UI and XAML

26

Windows 8 Graphics and Multimedia


Contents

xvii

27

Building a Windows Phone 8 App

28

Asynchronous Programming with async and await


29

Web App Development with ASP.NET: A Deeper
Look

30

Web Services

31

Building a Windows Azure™ Cloud
Computing App

32

GUI with Windows Presentation Foundation

33

WPF Graphics and Multimedia

34

ATM Case Study, Part 1: Object-Oriented Design
with the UML

35


ATM Case Study, Part 2: Implementing an ObjectOriented Design

D

Number Systems

E

UML 2: Additional Diagram Types

F

Unicode®

G

Using the Visual C# 2012 Debugger


This page intentionally left blank


Preface
Welcome to the Visual C#® 2012 computer programming language and the world of Microsoft® Windows® and Internet and web programming with Microsoft’s .NET platform.
Please read the book’s back cover and inside back cover—these concisely capture the
book’s essence. In this Preface we provide more details.
This book is appropriate for introductory course sequences based on the curriculum
recommendations of two key professional organizations—the ACM and the IEEE. The
examples are accessible to computer science, information technology, software engineering
and business students in novice-level and intermediate-level C# courses. The book can also

be used by professional programmers.
At the heart of the book is the Deitel signature live-code approach—rather than using
code snippets, we present concepts in the context of complete working programs followed
by sample executions. Read the Before You Begin section after this Preface for instructions
on setting up your computer to run the hundreds of code examples. The source code is available at www.deitel.com/books/vcsharp2012htp and www.pearsonhighered.com/deitel.
Use the source code we provide to compile and run each program as you study it—this will
help you master Visual C# and related Microsoft technologies faster and at a deeper level.
We believe that this book and its supplements for students and instructors will give
you an informative, engaging, challenging and entertaining introduction to Visual C#. If
you have questions, we’re easy to reach at —we’ll respond promptly.
For book updates, visit www.deitel.com/books/vcsharp2012htp, join our social media
communities on Facebook (www.deitel.com/DeitelFan), Twitter (@deitel), Google+
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Deitel ® Buzz Online newsletter (www.deitel.com/newsletter/subscribe.html).

Visual C#® 2012, the Visual Studio® 2012 IDE, .NET 4.5,
Windows® 7 and Windows® 8
The new Visual C# 2012 and its associated technologies motivated us to write Visual C#
2012 How to Program, 5/e. These are some of the key features of this new edition:
•

Use with Windows 7, Windows 8 or both. The book is designed so that you can
continue to use Windows 7 now and begin to evolve to Windows 8, if you like,
or you can move right to Windows 8. All of the code examples in Chapters 1–24
and 28–35 were tested on both Windows 7 and Windows 8. The code examples
for the Windows-8-specific chapters—Chapter 25 (Windows 8 UI and XAML),
Chapter 26 (Windows 8 Graphics and Multimedia) and Chapter 27 (Building a
Windows Phone 8 App)—were tested only on Windows 8.

•


C# and Visual C#. The C# language has been standardized internationally by
ECMA and ISO (the standards document is available free of charge at bit.ly/
ECMA334). Visual C# 2012 is Microsoft’s implementation of this standard.


xx

Preface
•

Modular multi-GUI treatment with Windows Forms, Windows 8 UI and WPF.
The printed book features Windows Forms GUI; optional online chapters contain treatments of Windows 8 UI (user interface) and WPF GUI. Windows 8 UI
apps are called Windows Store apps. In Chapter 25, you’ll learn how to create and
test Windows Store apps and upload them to Microsoft’s Windows Store.

•

Modular treatment of graphics and multimedia with Windows 8 and WPF. The
book features optional online chapters on both Windows 8 Graphics and Multimedia (Chapter 26) and WPF Graphics and Multimedia (Chapter 33).

•

Database with LINQ to Entities. In the previous edition of this book, we discussed LINQ (Language Integrated Query) to SQL (Microsoft’s SQL Server database system). Microsoft stopped further development on LINQ to SQL in
2008 in favor of the newer and more robust LINQ to Entities and the
ADO.NET Entity Framework, which we’ve switched to in this edition, keeping
the discussion friendly for novices.

•


SQL Server database. We use Microsoft’s free SQL Server Express 2012 (which
installs with the free Visual Studio Express 2012 for Windows Desktop) to present the fundamentals of database programming. Chapters 22–23 and 29–30 use
database and LINQ capabilities to build an address-book desktop app, a webbased guestbook app, a bookstore app and an airline reservation system app.

•

ASP.NET 4.5. Microsoft’s .NET server-side technology, ASP.NET, enables you
to create robust, scalable web-based apps. In Chapter 23, you’ll build several
apps, including a web-based guestbook that uses ASP.NET and the ADO .NET
Entity Framework to store data in a database and display data in a web page. The
chapter also discusses the IIS Express web server for testing your web apps on
your local computer.

•

Building a Windows Phone 8 App. Windows Phone 8 is Microsoft’s latest operating system for smartphones. It features multi-touch support for touchpads and
touchscreen devices, enhanced security features and more. In Chapter 27, you’ll
build a complete working Windows Phone 8 app and test it on the Windows
Phone simulator; we’ll discuss how to upload apps to the Windows Phone Store.

•

Building a Windows Azure™ Cloud Computing App. Windows Azure is a cloud
computing platform that allows you to develop, manage and distribute your apps
in the cloud. Chapter 31 shows you how to build a Windows Azure app that can
store data in the cloud.

•

Asynchronous programming with async and await. Asynchronous programming

is simplified in Visual C# 2012 with the new async and await capabilities. We
introduce asynchronous programming with async and await in Chapter 28.

Object-Oriented Programming
•

Early-objects approach. The book introduces the basic concepts and terminology
of object technology in Chapter 1. In Chapter 2, Dive Into Visual Studio 2012 Express for Windows Desktop, you’ll visually manipulate objects, such as labels and
images. In Chapter 3, Introduction to C# Apps, you’ll write Visual C# program code


Complete Code Examples

xxi

that manipulates preexisting objects. You’ll develop your first customized classes
and objects in Chapter 4. Presenting objects and classes early gets you “thinking
about objects” immediately and mastering these concepts more thoroughly.
•

Rich coverage of programming fundamentals. Chapters 5 and 6 present a friendly
treatment of control statements and problem solving.

•

A clear, example-driven presentation of classes, objects, inheritance, polymorphism and interfaces.

•

Optional case study: Using the UML to develop an object-oriented design and Visual C# implementation of an Automated Teller Machine (ATM). The UML™

(Unified Modeling Language™) is the industry-standard graphical language for
modeling object-oriented systems. We introduce the UML in the early chapters.
Online Chapters 34 and 35 include an optional case study on object-oriented design using the UML. We design and implement the software for a simple automated teller machine. We analyze a typical requirements document that specifies the
system to be built. We determine the classes needed to implement that system, the
attributes the classes need to have, the behaviors the classes need to exhibit and we
specify how the classes must interact with one another to meet the system requirements. From the design we produce a complete working Visual C# implementation. Students often report a “light bulb moment”—the case study helps them “tie
it all together” and truly understand object orientation.

•

Three programming paradigms. We discuss structured programming, object-oriented programming and generic programming.

Complete Code Examples
We include a broad range of example programs selected from computer science, business,
simulation, game playing, graphics, multimedia and many other areas (Fig. 1).
Examples
Account class
Address book case study
Airline reservation web-service
Animating the width and
height of a video
Applying transforms to a polygon
Array initializer
ArrayList class
BasePlusCommissionEmployee

class
Binary search
Blackjack game web-service
Books database


Card shuffling and dealing
CheckedListBox control
ComboBox control
CommissionEmployee class
Common Windows 8 UI controls
Common WPF controls
Compound interest calculations
Counter-controlled repetition
Craps dice game simulation
Creating and using a text file
Creating custom windows and
using timers

Credit-inquiry program
Data binding
Date class
DateTimePicker control
Defining gradients in XAML
Dice rolling
Directory class
Document navigation using
XNode

Drawing basic shapes
Drawing polylines and polygons
Employee class
File class

Fig. 1 | A small sample of the book’s hundreds of examples. (Part 1 of 2.)



xxii

Preface

Examples
Formatting fonts
Generic class Stack
Generic class List
GradeBook class
Guestbook app
HourlyEmployee class
Session tracking in ASP.NET
Invoice class
IPayable interface
Keyboard events
LinkLabel control
LINQ to Objects with arrays
ListBox control
Math tutor using web services
Menus

NegativeNumberException

StringBuilder

control
Object serialization
Overloaded constructors

PictureBox displaying images
Reading sequential-access files
Recursive Factorial method
REST Web services with
JSON and XML
SalariedEmployee class
Searching directories with
LINQ
Sequential search
Sorting an array
Stack unwinding

TabControl

NumericUpDown

class

Text-to-speech and speech-totext
Time class
Toolbars
TreeView control
TV GUI showing GUI
customization
Poll analysis
Polymorphism demonstration
Querying a database with
LINQ to Entities
Queue class
RadioButton control


Fig. 1 | A small sample of the book’s hundreds of examples. (Part 2 of 2.)

Interesting, Entertaining and Challenging Exercises
•

Extensive self-review exercises and answers are included for self-study.

•

Each chapter concludes with a substantial set of exercises, which generally includes simple recall of important terminology and concepts, identifying the errors
in code samples, writing individual program statements, writing small portions
of Visual C# classes, writing complete programs and implementing major projects. Figure 2 lists a small sampling of the book’s hundreds of exercises, including
selections from our Making a Difference exercises set, which encourage you to use
computers and the Internet to research and solve significant social problems—we
hope you’ll approach these exercises with your own values, politics and beliefs.

Exercises
Airline Reservations System
All Possible Three-Letter Words
from a Five-Letter Word
Baseball Database App
Binary Tree Traversals
Blackjack
Body Mass Index Calculator
Bucket Sort
Building Your Own Computer
Calendar and Appointments
Carbon Footprint Calculator


Card Shuffling and Dealing
Car-Pool Savings Calculator
Coin Tossing
Complex Numbers
Computer-Assisted Instruction
Computerization of Health
Records
Cooking with Healthier
Ingredients
Credit Limit Calculator
Dice Rolling

Fig. 2 | A sampling of the book’s exercises. (Part 1 of 2.)

Ecofont
Eight Queens
Employee Class
Enforcing Privacy with
Cryptography
Enhanced Painter
Factorials
Fuzzy Dice Order Form
Game of Craps
Gas Mileage
Generic Method Overloading