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In the approximately ten years since the publication of the seminal work in thefield of design patterns (Gamma et al's Design Patterns), this practice hasmoved from being an esoteric part of computer science research to themainstream of software engineering. Yet despite their widespread acceptance,design patterns are frequently misunderstood. These authors learned patternsthe hard way, and their original aim in writing this book (providing the readerwith a gentle yet thorough introduction to design patterns) continues in thesecond edition. This book is the perfect book to read before the reader tries totackle Gamma's famous work, and has been updated to reflect recent trendsand developments in software design.

"One of the great things about the book is the way the authors explain concepts very simply using analogies rather than programming examples–this has been very inspiring for a product I'm working on: an audio-only introduction to OOP and software development."

–Bruce Eckel

"...I would expect that readers with a basic understanding of object-oriented programming and design would find this book useful, before approaching design patterns completely. Design Patterns Explained complements the existing design patterns texts and may perform a very useful role, fitting between introductory texts such as UML Distilled and the more advanced patterns books."

–James Noble

Leverage the quality and productivity benefits of patterns–without the complexity! Design Patterns Explained, Second Edition is the field's simplest, clearest, most practical introduction to patterns. Using dozens of updated Java examples, it shows programmers and architects exactly how to use patterns to design, develop, and deliver software far more effectively.

You'll start with a complete overview of the fundamental principles of patterns, and the role of object-oriented analysis and design in contemporary software development. Then, using easy-to-understand sample code, Alan Shalloway and James Trott illuminate dozens of today's most useful patterns: their underlying concepts, advantages, tradeoffs, implementation techniques, and pitfalls to avoid. Many patterns are accompanied by UML diagrams.

Building on their best-selling First Edition, Shalloway and Trott have thoroughly updated this book to reflect new software design trends, patterns, and implementation techniques. Reflecting extensive reader feedback, they have deepened and clarified coverage throughout, and reorganized content for even greater ease of understanding. New and revamped coverage in this edition includes

• Better ways to start "thinking in patterns"
• How design patterns can facilitate agile development using eXtreme Programming and other methods
• How to use commonality and variability analysis to design application architectures
• The key role of testing into a patterns-driven development process
• How to use factories to instantiate and manage objects more effectively
• The Object-Pool Pattern–a new pattern not identified by the "Gang of Four"
• New study/practice questions at the end of every chapter

Gentle yet thorough, this book assumes no patterns experience whatsoever. It's the ideal "first book" on patterns, and a perfect complement to Gamma's classic Design Patterns. If you're a programmer or architect who wants the clearest possible understanding of design patterns–or if you've struggled to make them work for you–read this book.

One of the great things about the book is the way the authors explain concepts very simply using analogies rather than programming examples this has been very inspiring for a product I'm working on: an audio-only introduction to OOP and software development." Bruce Eckel ..".I would expect that readers with a basic understanding of object-oriented programming and design would find this book useful, before approaching design patterns completely. "Design Patterns Explained "complements the existing design patterns texts and may perform a very useful role, fitting between introductory texts such as UML Distilled and the more advanced patterns books." James Noble Leverage the quality and productivity benefits of patterns without the complexity! "Design Patterns Explained, Second Edition" is the field's simplest, clearest, most practical introduction to patterns. Using dozens of updated Java examples, it shows programmers and architects exactly how to use patterns to design, develop, and deliver software far more effectively. You'll start with a complete overview of the fundamental principles of patterns, and the role of object-oriented analysis and design in contemporary software development. Then, using easy-to-understand sample code, Alan Shalloway and James Trott illuminate dozens of today's most useful patterns: their underlying concepts, advantages, tradeoffs, implementation techniques, and pitfalls to avoid. Many patterns are accompanied by UML diagrams. Building on their best-selling First Edition, Shalloway and Trott have thoroughly updated this book to reflect new software design trends, patterns, and implementation techniques. Reflecting extensive reader feedback, they have deepened and clarified coverage throughout, and reorganized content for even greater ease of understanding. New and revamped coverage in this edition includes Better ways to start "thinking in patterns" How design patterns can facilitate agile development using eXtreme Programming and other methods How to use commonality and variability analysis to design application architectures The key role of testing into a patterns-driven development process How to use factories to instantiate and manage objects more effectively The Object-Pool Pattern a new pattern not identified by the "Gang of Four" New study/practice questions at the end of every chapter Gentle yet thorough, this book assumes no patterns experience whatsoever. It's the ideal "first book" on patterns, and a perfect complement to Gamma's classic "Design Patterns." If you're a programmer or architect who wants the clearest possible understanding of design patterns or if you've struggled to make them work for you read this book. The world of Patricia Highsmith has always been filled with ordinary people, all of whom are capable of very ordinary crimes. This theme was present from the beginning, when her debut, Strangers on a Train, galvanized the reading public. Here we encounter Guy Haines and Charles Anthony Bruno, passengers on the same train. But while Guy is a successful architect in the midst of a divorce, Bruno turns out to be a sadistic psychopath who manipulates Guy into swapping murders with him. "Some people are better off dead," Bruno remarks, "like your wife and my father, for instance." As Bruno carries out his twisted plan, Guy is trapped in Highsmith's perilous world, where, under the right circumstances, anybody is capable of murder. This guide for software developers describes the basic principles underlying object-oriented programming and design patterns, beginning with introductory material on object-oriented software development and the limitations of traditional object-oriented design, and ending with an exploration of ten commonly used design patterns, such as the facade, adapter, bridge, observer, double-checked locking, and factory method patterns. Original. (Advanced) Leverage the quality and productivity benefits of patterns--without the complexity. This second edition is the field's simplest, clearest, most practical introduction to patterns. Using dozens of new C# and updated Java examples, it shows programmers and architects exactly how to use patterns to design, develop, and deliver software far more effectively General Maximus Meridas, a hero of the Roman empire, is forced into exile by the Emperor Commodus and is captured and sold into slavery, where he learns a new type of warfare as a gladiator. Classic book of murder between 2 strangers that meet on a train.