Book Description

Summary

Java 8 in Action is a clearly written guide to the new features of Java 8. The book covers lambdas, streams, and functional-style programming. With Java 8's functional features you can now write more concise code in less time, and also automatically benefit from multicore architectures. It's time to dig in!

Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.

About the Book

Every new version of Java is important, but Java 8 is a game changer. Java 8 in Action is a clearly written guide to the new features of Java 8. It begins with a practical introduction to lambdas, using real-world Java code. Next, it covers the new Streams API and shows how you can use it to make collection-based code radically easier to understand and maintain. It also explains other major Java 8 features including default methods, Optional, CompletableFuture, and the new Date and Time API.

This book is written for programmers familiar with Java and basic OO programming.

What's Inside


  •     How to use Java 8's powerful new features
  •     Writing effective multicore-ready applications
  •     Refactoring, testing, and debugging
  •     Adopting functional-style programming
  •     Quizzes and quick-check questions

About the Authors


Raoul-Gabriel Urma is a software engineer, speaker, trainer, and PhD candidate at the University of Cambridge. Mario Fusco is an engineer at Red Hat and creator of the lambdaj library. Alan Mycroft is a professor at Cambridge and cofounder of the Raspberry Pi Foundation.

Table of Contents

    PART 1 FUNDAMENTALS
    Java 8: why should you care?
    Passing code with behavior parameterization
    Lambda expressions

    PART 2 FUNCTIONAL-STYLE DATA PROCESSING
    Introducing streams
    Working with streams
    Collecting data with streams
    Parallel data processing and performance

    PART 3 EFFECTIVE JAVA 8 PROGRAMMING
    Refactoring, testing, and debugging
    Default methods
    Using Optional as a better alternative to null
    CompletableFuture: composable asynchronousprogramming
    New Date and Time API

    PART 4 BEYOND JAVA 8
    Thinking functionally
    Functional programming techniques
    Blending OOP and FP: comparing Java 8 and Scala
    Conclusions and where next for Java

    APPENDIXES
    Miscellaneous language updates
    Miscellaneous library updates
    Performing multiple operations in parallelon a stream
    Lambdas and JVM bytecode

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Java 8 in Action: Lambdas, Streams, and functional-style programming_46991
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Java 8 in Action: Lambdas, streams, and functional-style programming
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