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Java 9: Building Robust Modular Applications

You're reading from   Java 9: Building Robust Modular Applications Master advanced Java features and implement them to build amazing projects

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Product type Course
Published in Apr 2018
Publisher Packt
ISBN-13 9781788832823
Length 910 pages
Edition 1st Edition
Languages
Tools
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Authors (3):
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Dr. Edward Lavieri Jr. Dr. Edward Lavieri Jr.
Author Profile Icon Dr. Edward Lavieri Jr.
Dr. Edward Lavieri Jr.
Jason Lee Jason Lee
Author Profile Icon Jason Lee
Jason Lee
Peter Verhas Peter Verhas
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Peter Verhas
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Toc

Table of Contents (33) Chapters Close

Title Page - Courses
Packt Upsell - Courses
Preface
1. The Java 9 Landscape FREE CHAPTER 2. Discovering Java 9 3. Java 9 Language Enhancements 4. Building Modular Applications with Java 9 5. Migrating Applications to Java 9 6. Experimenting with the Java Shell 7. Leveraging the New Default G1 Garbage Collector 8. Microbenchmarking Applications with JMH 9. Making Use of the ProcessHandle API 10. Fine-Grained Stack Tracing 11. New Tools and Tool Enhancements 12. Concurrency and Reactive Programming 13. Security Enhancements 14. Command Line Flags 15. Best Practices In Java 9 16. Future Directions 17. Introduction 18. Managing Processes in Java 19. Duplicate File Finder 20. Date Calculator 21. Sunago - A Social Media Aggregator 22. Sunago - An Android Port 23. Email and Spam Management with MailFilter 24. Photo Management with PhotoBeans 25. Taking Notes with Monumentum 26. Serverless Java 27. DeskDroid - A Desktop Client for Your Android Phone 28. What is Next? 1. Bibliography
Index

Convenience factory methods for collections [JEP-269]


The Java programming language does not support collection literals. Adding this feature to the Java platform was proposed in 2013 and revisited in 2016, but it only gained exposure as a research proposal, not for future implementation.

Note

Oracle's definition of a collection literal is "a syntactic expression form that evaluates to an aggregate type, such as an array, list, or map" (http://openjdk.java.net/jeps/186).

Of course, that is until Java 9 is released. Implementing collection literals in the Java programming language is reported to have the following benefits:

  • Performance improvement
  • Increased safety
  • Reduction of boilerplate code

Even without being part of the research group, our knowledge of the Java programming language clues us in to additional benefits:

  • Ability to write shorter code
  • Ability to write space-efficient code
  • Ability to make collection literals immutable

Let's look at two cases--using collections before Java 9, and then...

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