About the Author
Steven John Metsker is a Managing Consultant with Dominion Digital, an information technology and business process reengineering company. Steve specializes in object-oriented techniques for creating clean, powerful software, and he is the author of Building Parsers with Java™, Design Patterns Java™ Workbook, and Design Patterns in C# (all from Addison-Wesley).
William C. Wake, http://www.xp123.com , is an independent software consultant, coach, and trainer with more than twenty years of programming experience. Bill previously held positions with Capital One Financial, DMR Trecom, and VTLS, Inc. He is the author of the Refactoring Workbook and Extreme Programming Explored (both from Addison-Wesley).
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Design patterns are class- and method-level solutions to common problems in object-oriented design. If you're an intermediate-level Java programmer who wants to become advanced or an advanced-level Java programmer who hasn't yet studied design patterns, this book is for you.
Design Patterns in Java™ takes a workbook approach. Each chapter focuses on a particular pattern. In addition to explaining the pattern, the chapter includes a number of challenges, each asking you to explain something or to develop code that solves a problem.
We strongly urge you to stop and work through the challenges rather than try to read this book straight through. You'll learn more by putting in the work to do the challenges, even if it's only a chapter or two a week.
This book merges and updates two previous books: Design Patterns Java Workbook™; and Design Patterns in C#. This book combines the Java orientation of the former with the more stand-alone approach of the latter. If you've already worked through the previous books, you won't need this one.