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Java 11 Cookbook

You're reading from   Java 11 Cookbook A definitive guide to learning the key concepts of modern application development

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Product type Paperback
Published in Sep 2018
Publisher
ISBN-13 9781789132359
Length 802 pages
Edition 2nd Edition
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Authors (2):
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Mohamed Sanaulla Mohamed Sanaulla
Author Profile Icon Mohamed Sanaulla
Mohamed Sanaulla
Nick Samoylov Nick Samoylov
Author Profile Icon Nick Samoylov
Nick Samoylov
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Table of Contents (18) Chapters Close

Preface 1. Installation and a Sneak Peek into Java 11 FREE CHAPTER 2. Fast Track to OOP - Classes and Interfaces 3. Modular Programming 4. Going Functional 5. Streams and Pipelines 6. Database Programming 7. Concurrent and Multithreaded Programming 8. Better Management of the OS Process 9. RESTful Web Services Using Spring Boot 10. Networking 11. Memory Management and Debugging 12. The Read-Evaluate-Print Loop (REPL) Using JShell 13. Working with New Date and Time APIs 14. Testing 15. The New Way of Coding with Java 10 and Java 11 16. GUI Programming Using JavaFX 17. Other Books You May Enjoy

Introduction


Lambda expressions described and demonstrated in the previous chapter were introduced in Java 8. Together with functional interfaces, they added the functional programming capability to Java, allowing the passing of behavior (functions) as parameters to the libraries optimized for the performance of data processing. This way, an application programmer can concentrate on the business aspects of the developed system, leaving performance aspects to the specialists—the authors of the library.

One example of such a library is the java.util.stream package, which is going to be the focus of this chapter. This package allows you to have a declarative presentation of the procedures that can be subsequently applied to the data, also in parallel; these procedures are presented as streams, which are objects of the Stream interface. For a better transition from the traditional collections to streams, two default methods (stream() and parallelStream()) were added to the java.util.Collection...

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