Objective-C For Dummies

459 Pages·2009·8.631 MB·English

by  Goldstein, Neal

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Objective-C®
FOR
DUMmIES
‰
by Neal Goldstein
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Objective-C® For Dummies®
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Copyright © 2009 by Wiley Publishing, Inc., Indianapolis, Indiana
Published by Wiley Publishing, Inc., Indianapolis, Indiana
Published simultaneously in Canada
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About the Author
Neal Goldstein is a recognized leader in making state-of-the-art and cutting-
edge technologies practical for commercial and enterprise development.
He was one of the fi rst technologists to work with commercial developers
at fi rms such as Apple Computer, Lucasfi lm, and Microsoft to develop com-
mercial applications using object-based programming technologies. He was
a pioneer in moving that approach into the corporate world for developers
at Liberty Mutual Insurance, USWest (now Verizon), National Car Rental, EDS,
and Continental Airlines, showing them how object-oriented programming
could solve enterprise-wide problems. His book (with Jeff Alger) on object-
oriented development, Developing Object-Oriented Software for the Macintosh
(Addison Wesley, 1992), introduced the idea of scenarios and patterns to
developers. He was an early advocate of the Microsoft .NET framework, and
successfully introduced it into many enterprises, including Charles Schwab.
He was one of the earliest developers of Service Oriented Architecture (SOA),
and as Senior Vice President of Advanced Technology and the Chief Architect
at Charles Schwab, he built an integrated SOA solution that spanned the
enterprise, from desktop PCs to servers to complex network mainframes. (He
holds three patents as a result.) As one of IBM’s largest customers, he intro-
duced them to SOA at the enterprise level and encouraged them to head in
that direction. He is currently leading an iPhone startup that is developing an
application that will radically change how people can use iPhones to manage
information.
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Dedication
To my brother, Jay, who went above and beyond the call of duty to cover for
me in the real world as I wandered around in Objective-C land.
To my children, Sarah and Evan, who help me understand what is really
important
But most of all, to my wife Linda. With equanimity and grace she’s lived with
me through not just one, but two books this year. If there is ever a Nobel
Prize for patience, understanding, support, and friendship, she deserves the
fi rst one.
Author’s Acknowledgments
Carole Jelen, agent extraordinaire, who does an extraordinary job of taking
care of business so that I can pay attention to writing.
Acquisitions Editor Kyle Looper whose understanding of programming and
the issues involved in learning how to program helped make this a far better
book. Project Editor Colleen Totz Diamond took over in mid stream and did
an outstanding job of making this book what it is. Copy Editor Melba Hopper
kept me focused on making things clear and simple. Technical reviewer
Dennis Cohen added a great second pair of eyes.
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Publisher’s Acknowledgments
We’re proud of this book; please send us your comments at http://dummies.custhelp.com. For
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side the U.S. at 317-572-3993, or fax [phone].
Some of the people who helped bring this book to market include the following:
Acquisitions, Editorial, and Media Composition Services
Development
Project Coordinator: Patrick Redmond
Project Editor: Colleen Totz Diamond
Layout and Graphics: Samantha K. Cherolis
Acquisitions Editor: Kyle Looper
Proofreaders: Context Editorial Svcs,
Copy Editor: Melba Hopper John Greenough
Technical Editor: Dennis R. Cohen Indexer: Valerie Haynes Perry
Editorial Manager: Jodi Jensen Special Help:
Media Development Assistant Project David A. Diamond, Kelly Ewing
Manager: Jenny Swisher
Media Development Associate Producers:
Josh Frank
Editorial Assistant: Amanda Graham
Sr. Editorial Assistant: Cherie Case
Cartoons: Rich Tennant
(www.the5thwave.com)
Publishing and Editorial for Technology Dummies
Richard Swadley, Vice President and Executive Group Publisher
Andy Cummings, Vice President and Publisher
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Mary C. Corder, Editorial Director
Publishing for Consumer Dummies
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Composition Services
Debbie Stailey, Director of Composition Services
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Contents at a Glance
Introduction ................................................................ 1
Part I: Getting to the Starting Line ............................... 7
Chapter 1: Computer Programming Exposed! ................................................................9
Chapter 2: Creating Your First Program ........................................................................21
Chapter 3: The Object in Objective-C ............................................................................55
Part II: Speaking the Language of Objective-C ............. 65
Chapter 4: Language and Programming Basics ...........................................................67
Chapter 5: Functions and Data Structures ..................................................................105
Chapter 6: Adding a Little More Class to Your Program ...........................................139
Chapter 7: Objects Objects Everywhere .....................................................................167
Chapter 8: Using the Debugger ....................................................................................185
Chapter 9: Using Control Statements and Loops .......................................................201
Part III: Walking the Object-Oriented Walk .....................223
Chapter 10: Basic Inheritance ......................................................................................225
Chapter 11: Encapsulating Objects .............................................................................245
Chapter 12: The Birth of an Object .............................................................................265
Chapter 13: Getting a Handle on Memory Management ...........................................279
Part IV: Moving from Language to Application ........... 305
Chapter 14: Getting Data from Other Objects ............................................................307
Chapter 15: Show Me the Data .....................................................................................323
Chapter 16: Extending the Behavior of Objects .........................................................355
Chapter 17: Adding an iPhone User Interface ............................................................369
Chapter 18: Adding a Mac User Interface ...................................................................393
Part V: The Part of Tens ........................................... 407
Chapter 19: Ten Debugging Tips ..................................................................................409
Chapter 20: Ten Ways to Be a Happy Developer ........................................................413
Appendix: About the CD ...............................................................................................419
Index ...................................................................... 423
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