The Definitive Guide to Java Platform Best Practices–Updated for Java 7, 8, and 9

Java has changed dramatically since the previous edition of Effective Java was published shortly after the release of Java 6. This Jolt award-winning classic has now been thoroughly updated to take full advantage of the latest language and library features. The support in modern Java for multiple paradigms increases the need for specific best-practices advice, and this book delivers.

As in previous editions, each chapter of Effective Java, Third Edition, consists of several “items,” each presented in the form of a short, stand-alone essay that provides specific advice, insight into Java platform subtleties, and updated code examples. The comprehensive descriptions and explanations for each item illuminate what to do, what not to do, and why.

The third edition covers language and library features added in Java 7, 8, and 9, including the functional programming constructs that were added to its object-oriented roots. Many new items have been added, including a chapter devoted to lambdas and streams.

New coverage includes

• Functional interfaces, lambda expressions, method references, and streams
• Default and static methods in interfaces
• Type inference, including the diamond operator for generic types
• The @SafeVarargs annotation
• The try-with-resources statement
• New library features such as the Optional interface, java.time, and the convenience factory methods for collections

Are you looking for a deeper understanding of the Java™ programming language so that you can write code that is clearer, more correct, more robust, and more reusable? Look no further! Effective Java™, Second Edition, brings together seventy-eight indispensable programmer’s rules of thumb: working, best-practice solutions for the programming challenges you encounter every day.

This highly anticipated new edition of the classic, Jolt Award-winning work has been thoroughly updated to cover Java SE 5 and Java SE 6 features introduced since the first edition. Bloch explores new design patterns and language idioms, showing you how to make the most of features ranging from generics to enums, annotations to autoboxing.

Each chapter in the book consists of several “items” presented in the form of a short, standalone essay that provides specific advice, insight into Java platform subtleties, and outstanding code examples. The comprehensive descriptions and explanations for each item illuminate what to do, what not to do, and why.

Highlights include:

• New coverage of generics, enums, annotations, autoboxing, the for-each loop, varargs, concurrency utilities, and much more
• Updated techniques and best practices on classic topics, including objects, classes, libraries, methods, and serialization
• How to avoid the traps and pitfalls of commonly misunderstood subtleties of the language
• Focus on the language and its most fundamental libraries: java.lang, java.util, and, to a lesser extent, java.util.concurrent and java.io

Simply put, Effective Java™, Second Edition, presents the most practical, authoritative guidelines available for writing efficient, well-designed programs.

"Every programming language has its quirks. This lively book reveals oddities of the Java programming language through entertaining and thought-provoking programming puzzles."

--Guy Steele, Sun Fellow and coauthor of The Java™ Language Specification

"I laughed, I cried, I threw up (my hands in admiration)."

--Tim Peierls, president, Prior Artisans LLC, and member of the JSR 166 Expert Group

How well do you really know Java? Are you a code sleuth? Have you ever spent days chasing a bug caused by a trap or pitfall in Java or its libraries? Do you like brainteasers? Then this is the book for you!

In the tradition of Effective Java™, Bloch and Gafter dive deep into the subtleties of the Java programming language and its core libraries. Illustrated with visually stunning optical illusions, Java™ Puzzlers features 95 diabolical puzzles that educate and entertain. Anyone with a working knowledge of Java will understand the puzzles, but even the most seasoned veteran will find them challenging.

Most of the puzzles take the form of a short program whose behavior isn't what it seems. Can you figure out what it does? Puzzles are grouped loosely according to the features they use, and detailed solutions follow each puzzle. The solutions go well beyond a simple explanation of the program's behavior--they show you how to avoid the underlying traps and pitfalls for good. A handy catalog of traps and pitfalls at the back of the book provides a concise taxonomy for future reference.

Solve these puzzles and you'll never again fall prey to the counterintuitive or obscure behaviors that can fool even the most experienced programmers.

Seit der Vorauflage von "Effective Java", die kurz nach dem Release von Java 6 erschienen ist, hat sich Java dramatisch verändert. Dieser preisgekrönte Klassiker wurde nun gründlich aktualisiert, um die neuesten Sprach- und Bibliotheksfunktionen vorzustellen. Erneut zeigt Java-Kenner Joshua Bloch anhand von Best Practices, wie Java moderne Programmierparadigmen unterstützt.

Wie in früheren Ausgaben besteht jedes Kapitel von "Effective Java" aus mehreren Themen, die jeweils in Form eines kurzen, eigenständigen Essays präsentiert werden. Dieses enthält jeweils spezifische Ratschläge, Einblicke in die Feinheiten der Java-Plattform und Codebeispiele. Umfassende Beschreibungen und Erklärungen für jedes Thema beleuchten, was zu tun ist, was nicht zu tun ist und warum es zu tun ist.

Die dritte Auflage behandelt Sprach- und Bibliotheksfunktionen, die in Java 7, 8 und 9 hinzugefügt wurden, einschließlich der funktionalen Programmierkonstrukte. Neue Themen sind unter anderem:

• Functional Interfaces, Lambda-Ausdrücke, Methodenreferenzen und Streams
• Default- und statische Methoden in Interfaces
• Type Inference, einschließlich des Diamond-Operators für generische Typen
• Die Annotation @SafeVarargs
• Das Try-with-Resources-Statement
• Neue Bibliotheksfunktionen wie das Optional Interface, java.time und die Convenience-Factory-Methoden für Collections