Holub on Patterns Learning Design Patterns by Looking at Code [Paperback]

* Allen Holub is a highly regarded instructor for the University of California, Berkeley, Extension. He has taught since 1982 on various topics, including Object-Oriented Analysis and Design, Java, C++, C. Holub will use this book in his Berkeley Extension classes.

* Holub is a regular presenter at the Software Development conferences and is Contributing Editor for the online magazine JavaWorld, for whom he writes the Java Toolbox. He also wrote the OO Design Process column for IBM DeveloperWorks.

* This book is not time-sensitive. It is an extremely well-thought out approach to learning design patterns, with Java as the example platform, but the concepts presented are not limited to just Java programmers. This is a complement to the Addison-Wesley seminal Design Patterns book by the Gang of Four .

This is a book about programming in an object -oriented way and about how to use design patterns to solve commonplace problems in object-oriented systems. I've based this book on the philosophy that the best way to learn and understand the design patterns is to see them in action, all jumbled up, just as they occur in the real world. Consequently, this book presents design patterns to you by looking at computer programs. My intent is to both clarify and bring down to earth Gamma, Helm, Johnson, and Vlissides's seminal work Design Patterns: Elements of Reusable Object-Oriented Software (Addison-Wesley, 1995). (The four authors are often called the Gang of Four [or GoF], and their book is usually called the Gang-of-Four book.) The current volume puts the GoF book into context, presenting and teaching design patterns as they occur in the real world. By the time you're done, you'll have seen all of the Gang-of-Four patterns but in the context of real computer programs. Don't get me wrong-this book does not pretend to supplant the GoF book but rather to complement it. Gamma, Helm, Johnson, and VlissidelÓï