商品の詳細

• Amazon.co.jp ランキング: #89107 / 本
• 発売日: 2001-06-05
• オリジナル言語: 英語
• 版型: ペーパーバック
• 272 ページ

内容説明
Effective Java Programming Language Guide distills the hard-won wisdom of today's best Java programmers into 50 techniques for designing and constructing more robust, high-performance software. Josh Bloch, one of Sun's most widely respected Java developers, focuses on the practical problems virtually every Java developer encounters, offering specific solutions and top-notch code examples. Josh Bloch identifies 50 practices that lead directly to better code -- including better alternatives for common practices that have proven undesirable in real-world development. The techniques are specific, thoroughly explained, and supported by top-notch code examples. Among the highlights: why developers should avoid finalizers; when to use delegation instead of inheritance; and how to make the most of Java's powerful typesafe enum pattern. Nearly all 50 practices relate to the "core" of the Java platform -- the language itself -- making the book relevant to every Java developer.

内容（「MARC」データベースより）
Javaを効果的に使うポイントから多くのプログラマーが間違えやすい箇所を取り上げて、回避する方法を紹介。また、基本ライブラリーであるjava.langやシリアライゼーションについても解説。

Amazon.com
Written for the working Java developer, Joshua Bloch's Effective Java Programming Language Guide provides a truly useful set of over 50 best practices and tips for writing better Java code. With plenty of advice from an indisputable expert in the field, this title is sure to be an indispensable resource for anyone who wants to get more out of their code.

As a veteran developer at Sun, the author shares his considerable insight into the design choices made over the years in Sun's own Java libraries (which the author acknowledges haven't always been perfect). Based on his experience working with Sun's best minds, the author provides a compilation of 57 tips for better Java code organized by category. Many of these ideas will let you write more robust classes that better cooperate with built-in Java APIs. Many of the tips make use of software patterns and demonstrate an up-to-the-minute sense of what works best in today's design. Each tip is clearly introduced and explained with code snippets used to demonstrate each programming principle.

Early sections on creating and destroying objects show you ways to make better use of resources, including how to avoid duplicate objects. Next comes an absolutely indispensable guide to implementing "required" methods for custom classes. This material will help you write new classes that cooperate with old ones (with advice on implementing essential requirements like the equals() and hashCode() methods).

The author has a lot to say about class design, whether using inheritance or composition. Tips on designing methods show you how to create understandable, maintainable, and robust classes that can be easily reused by others on your team. Sections on mapping C code (like structures, unions, and enumerated types) onto Java will help C programmers bring their existing skills to Sun's new language. Later sections delve into some general programming tips, like using exceptions effectively. The book closes with advice on using threads and synchronization techniques, plus some worthwhile advice on object serialization.

Whatever your level of Java knowledge, this title can make you a more effective programmer. Wisely written, yet never pompous or doctrinaire, the author has succeeded in packaging some really valuable nuggets of advice into a concise and very accessible guidebook that arguably deserves a place on most any developer's bookshelf. --Richard Dragan

Topics covered:

• Best practices and tips for Java
• Creating and destroying objects (static factory methods, singletons, avoiding duplicate objects and finalizers)
• Required methods for custom classes (overriding equals(), hashCode(), toString(), clone(), and compareTo() properly)
• Hints for class and interface design (minimizing class and member accessibility, immutability, composition versus inheritance, interfaces versus abstract classes, preventing subclassing, static versus nonstatic classes)
• C constructs in Java (structures, unions, enumerated types, and function pointers in Java)
• Tips for designing methods (parameter validation, defensive copies, method signatures, method overloading, zero-length arrays, hints for Javadoc comments)
• General programming advice (local variable scope, using Java API libraries, avoiding float and double for exact comparisons, when to avoid strings, string concatenation, interfaces and reflection, avoid native methods, optimizing hints, naming conventions)
• Programming with exceptions (checked versus run-time exceptions, standard exceptions, documenting exceptions, failure-capture information, failure atomicity)
• Threading and multitasking (synchronization and scheduling hints, thread safety, avoiding thread groups)
• Serialization (when to implement Serializable, the readObject(), and readResolve() methods)

カスタマーレビュー

Java開発設計者必読
Java開発においてクラス設計を行う技術者については必ず読むべき１冊だと思います。この本に書いてある内容を知らない技術者には設計させたくないです。新人プログラマーには難しい内容だと思いますが、上級レベルを目指すのであれば早めに手に入れ、分からない点は有識者に聞くなどして理解を深めていけばよいと思います。

中級レベル以上のJava開発者へ
そこそこJavaがプログラムできるようになった人には、非常にお勧めです。
我流でコーディングしていると、知らない間に良くないコーディングの
くせがついてしまうものですが、この本はそれを矯正してくれます。
例えば、しばしばimplementsするjava.io.Serializableインタフェースの
適切なimplementsの方法。equalsメソッドとhashCodeメソッドの関係。

などなど、私には非常に有用だと感じました。

単に動くコードと優れたコードがどう違うのか
Javaのプログラミングイディオムや、Javaらしい設計指針を幅広く解説している良書。単に動くコードと優れたコードがどう違うのかが手に取るように分かるのがこの本の優れたところ。Javaの入門書の後にステップアップのために読むと効果大だと思う。