Java Magazine, Mar/Apr 2018
ORACLE COM JAVAMAGAZINE MARCH APRIL 2018 08 I can finally review the longanticipated third edition of the classic book Efective Java by Joshua Bloch Its release at the end of 2017 brought the books content up to date with Java 9 Given that the previous edition covered only through Java 6 you can see how long this edition has been anticipated by Efective Javas many fans fans who justifiably appreciate the clear and elegant execution of the books central promise a discussion of best practices in Java programming Bloch presents these practices through a series of 90 short essays up from 78 in the previous edition each of which elaborates a useful recommendation For example here are some of the best practices added in this volume Prefer method references to lambdas Prefer Collection to Stream as a return type Use Streams judiciously As you can see these recommendations are true best practices That is they are not intended as tutorials on the language but rather as good things to do once youve learned the language and are using it daily The first example on the list above will likely elicit from some readers a Huh I never thought about that response And that is precisely what gained this book praise and attention in its original release the many recommendations that readers simply had not considered or if theyd considered them had not explored fully Other recommendations such as Use Streams judiciously seem banal in their formulation Use x judiciously is always good advice so what makes this suggestion important Blochs eight page explanation details how Streams should be used His principal thesis is that Streams provide little benefit if they dont implement a functional style operation To facilitate this Bloch dives into the Collectors API and explains its tight relationship with operations for which many developers misuse Streams The explanation contains examples of badly used Streams and the correct use In the process you learn a lot about how Streams and Collectors operate the intended use of Streams and how to apply that knowledge to write better and clearer code Not bad for eight pages The recommendations stretch across many topics from tricky topics such as the Serializable interface to the more mundane such as when to omit accessors on data only classes The book is supremely readable the style is concise and clear and the code examples are short and to the point As a result Efective Java is a pleasant volume to read through from beginning to end learning to refine your coding skills as you go It is one of the very few books I recommend without reservation to all Java programmers who are past the beginner stage Andrew Binstock java books EFFECTIVE JAVA THIRD EDITION By Joshua Bloch
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