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Core Java for the Impatient

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An Essential Guide to the Core Language and Libraries--Updated for Java 21

Modern Java introduces major enhancements that impact the core language and APIs at the heart of the Java platform. Many old Java idioms are no longer needed, and new features and programming paradigms can make you far more effective. However, navigating these changes can be challenging.

Core Java for the Impatient, Fourth Edition , is a complete guide that reflects all changes through Java SE 21, Oracle's latest Long-Term Support (LTS) release. Written by Cay S. Horstmann--author of the classic two-volume Core Java--this concise tutorial offers a faster, easier pathway for learning modern Java.

Horstmann covers everything working developers need to know, including the powerful concepts of lambda expressions and streams, modern constructs such as records and sealed classes, and sophisticated concurrent programming techniques. Given the size and scope of Java 21, there's plenty to cover. As in previous editions, everything is presented in small chunks organized for quick access and easy understanding, with plenty of practical insights and sample code to help you quickly apply all that's new.

Test code as you create it with JShell Improve your object-oriented design with records and sealed classes Effectively use text blocks, switch expressions, and pattern matching Understand functional programming with lambda expressions Streamline and optimize data management with the Streams API Use structured techniques, threadsafe data structures, and virtual threads for effective concurrent programming Work with the modularized Java API and third-party modules Take advantage of API improvements for working with collections, input/output, regular expressions, and processes Whether you're an experienced developer just getting started with modern Java or have been programming with Java for years, this guide will help you write more robust, efficient, and secure Java code.

Core Java for the Impatient provides accessible coverage of Java features that will enable readers to

Master foundational techniques, idioms, and best practices for writing superior Java code Leverage the power of input/output Improve performance and efficiency Fully utilize multicore processors with Java's improved concurrency Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

876 pages, Kindle Edition

First published August 11, 2014

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About the author

Cay S. Horstmann

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Displaying 1 - 7 of 7 reviews
105 reviews47 followers
May 16, 2020
Good book, not concise (too much content; could've used shorter chapters) but written with clarity. I'm not very fond of Java per se, but I have to use Spark (so Java is necessity) which uses Hadoop (in Java) which was developed as a "fix" for Nutch (in Java.) They probably wrote it in Java because they would rather trust Java's garbage collector than any other random programmer "debating" that their contributed code take cares of memory well! Doesn't matter! The point is, it is cool enough for me to use. I'm not very attracted to using everything as a reference though.
Profile Image for Anton Antonov.
356 reviews52 followers
August 1, 2024
I am sharing my thoughts from the other review of Scala for the Impatient https://www.goodreads.com/review/show....

For the same reasons, I've read this book too.
The same highlights apply. I have been enjoying Cay S. Horstmann's book since 2013. I enjoy this one, too. It applies the same "for the Impatient" book series approach of detailed exploration of Java for seasoned engineers.

Nowadays, go straight for the latest 3rd edition, which is updated for Java 17. :)
Profile Image for Arun.
211 reviews67 followers
January 7, 2021
Retroactive review - Quick read a few years back. Covers all topics that are needed to use the Java 8+ in production and wastes no time in doing it. Ideal for brushing up the latest changes to the language and it turns out there are a lot.
Profile Image for Justin.
199 reviews44 followers
June 20, 2017
Good intermediate level book, kinda dry though but I usually read no starch press books so take that with a grain of salt.
992 reviews24 followers
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Displaying 1 - 7 of 7 reviews

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