Modern Java: Second Edition
Modern Java: Second Edition
Java 17 and the Java Ecosystem
About the Book
Who is this for?
This book is for anyone who wants to learn more about Java programming up to and including Java 17. It helps to have a background in some programming language and a basic understanding of Java.
What is covered?
Java and the JVM platform have made huge strides in the past several years. In Project Lambda, Java got lambda expressions, method-references, and default and static methods on interfaces. Java 9 added modularity, jshell, and Reactive support. Java 10-11 added local variable type inference (var) and Java 12-17 added switch expressions, pattern matching instanceof, multi-line strings, and records. At the same time, many new frameworks have reached full maturity and vastly improved over the previous models for building, testing, and developing web applications.
This book will help you understand:
- The new features released in Java 10-17, such as "var", multi-line strings, and records
- Java 9+, including: Project Jigsaw, JShell, language updates, and Reactive support.
- Java 8+, including: Project Lambda, the new Date-Time API, Streams, default methods, Nashorn, and more.
- Concurrent programming such as Fork/Join, Futures, Promises, Parallel Streams, and RxJava.
- Great web frameworks in Java, such as Spring Boot, Spark, Play, and Ratpack.
- The fundamentals of Groovy and how it can improve your Java projects.
- Testing with JUnit and Spock.
- Building with Maven and Gradle.
- Microservices, REST, Cloud...
- Logback, Hibernate, Guava...
- Much more...
Disclaimer
Java is a registered trademark of Oracle. You can find Java here on Oracle's website.
About the Author
Bundles that include this book
Table of Contents
-
-
Introduction
- Always be learning
- Who is this book for?
- What is this book about?
- What this book is not about
- Starting Out
-
Introduction
-
Part I: Java
-
Java
- History
- Open-ness
- The Java Ecosystem
-
Java Syntax and Conventions
- Java JDK
- Primitives and Arrays
- Classes
- Properties and Methods
- Comments
- Java 5
- Java 6
-
Java 7
- Language Updates
- Fork/Join
- New IO (nio)
- JVM Benefits
- Performance Benefits
- Backwards Compatibility
-
Idiomatic Java 8: Lambdas, Streams, and Dates
- Lambda Expressions
- Comparisons to Java 7
- Default Methods
- Default and Functional
- Multiple Defaults
- Static Methods on Interface
- Streams
- For Each
- Map/Filter/Reduce
- Parallel Array
- Peek
- Limit
- Sort
- Collectors and Statistics
- Grouping and Partitioning
- Comparisons to Java 7
- Optional
- Nashorn
-
New Date and Time API
- New Classes
- Creation
- Enums
- Clock
- Period and Duration
- Temporal Adjusters
- Instant
- Time Zones
- Backwards Compatibility
-
Java 8 Miscellaneous
- Base64
- No More Permanent Generation
- Annotations on Java Types
- Repeating Annotations
- Functional Programming in Java 8
- Backports
-
Advantages of Java 9
- Language Updates
- Concurrency
- Modularity
- JShell
-
Java 10 and 11
- Local Variable Types
- Lambda Expression Local Variable Types
-
Java 12-17
- Switch Expressions
- Records
- Multiline Strings
- Pattern Matching Instance-of
-
Java
-
Part II: The Java Ecosystem
-
Ecosystem Overview
- Continuous Development and Testing
-
Maven
- What is Maven?
- Using Maven
- Starting a New Project
- Lifecycle
- Dependencies
- Properties
- Executing Code
- Deploying to Maven Central
-
JUnit
- What is JUnit?
- Hamcrest
- Assumptions
- Parameterized Tests
- JUnit Theories
- Utilizing Essential Libraries
-
Logback
- Using SLF4J
- Configuration
- MDC
-
Hibernate
- Starting Out
- Mappings
- HQL
- Configuration
- Find out More
-
Guava
- Collections
- Objects
- Concurrency
- Functional Programming
- Optional
- Other Useful Classes
-
Modern Java Concurrency
- State of Concurrent Programming in Java
- Prominent Models for Concurrency
- Synchronize in Java
- Java Futures
- STM in Clojure
- Actors
- Groovy GPars
-
RxJava
- Flowable
- Parallel Computing
- Schedulers
- Publishers
- Hot and Cold
- Backpressure
-
Ecosystem Overview
-
Part III: JVM Languages
-
Other JVM Languages
- Why use non-Java Languages?
- Polyglot Programming
- Edge-Craft
- Java.next(): Groovy vs. Scala
-
Groovy
- What is Groovy?
- Compact Syntax
- List and Map Definitions
- Easy Properties
- GString
- Closures
- A Better Switch
- Gotcha’s
- Command Chains
- Modules
- Static Type Checking
- Invoke Dynamic Support in Groovy
-
The Groovy Ecosystem
- Web and UI Frameworks
- Cloud Computing Frameworks
- Build Frameworks
- Testing Frameworks/Code Analysis
- Concurrency
- Others
-
Gradle
- Getting Started
- Projects and Tasks
- Plugins
- Configuring a Task
- Extra Configuration
- Maven Dependencies
- Gradle Properties
- Multiproject builds
- File Operations
- Exploring
- Build Scans
- Summary
-
Spock
- Introduction
- A Simple Test
- Mocking
- Lists or Tables of Data
- Expecting Exceptions
- Conclusion
-
Scala
- What is Scala?
- Hello World
- Everything’s an object
- Everything’s an expression
- Match is Switch on Steroids
- Traits as Mixins
- List and Apply
- Tuples
- Maps
- For Expressions
- A Brief History of Scala
- Conclusion
-
The Scala Ecosystem
- Web Frameworks
- ORM Frameworks
- Build frameworks
- Testing frameworks/Code Analysis
- Concurrency
-
Other JVM Languages
-
Part IV: The Web
-
RESTful
- REST in Groovy
- REST in Scala
- JAX-RS 1.0
- JAX-RS 2.0
-
Microservices and Clouds
- Microservices
- OSS
- More Information
- JVM Clouds
-
Grails
- What is Grails?
- Quick Overview of Grails
- Plugins
- REST in Grails
- Short History of Grails
- Testing
- Cache Plugin
- Grails Wrapper
- Cloud
-
Spark
- Getting Started
- Routes
- Filters
- Sessions, Cookies, and More
-
Spring Boot
- Gradle Plugin
- SpringBootApplication
- Auto-Cofiguration
- Actuator
- Rest Controller
- Devtools
- Conclusion
-
Play Framework
- What is Play?
- Quick Overview of Play
- Controllers, Views, Forms
- ORM
- Play 1.x
- Play 2.0
- Getting Started
-
Ratpack
- Script
- Java Main
- Gradle
- Ratpack Layout
- Handlers
- Rendering
- JSON
- Bindings
- Blocking
- Configuration
- Testing
- Summary
-
Final Thoughts
- The State of the JVM
- The Future
- Contact the Author
- Appendix: Groovy for Java Devs
- Appendix: Scala for Java Devs
-
Java 8 Cheatsheet
- Lambda Syntax
- Method References
- Functional Interfaces under java.util.function
- Contact the Author
-
RESTful
- Notes
Causes Supported
Electronic Frontier Foundation
Defending your civil liberties in a digital world.
https://www.eff.org/Based in San Francisco, EFF is a donor-supported membership organization working to protect fundamental rights regardless of technology.
The Leanpub 60-day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Do Well. Do Good.
Authors have earned$11,978,423writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
- #1
A Guide To The Future Of Hospitals
Dr. Bertalan MeskoFor centuries, scientists have been trying to envision the future of hospitals. Following the recent shift towards digital health technologies, in part precipitated by COVID-19, it is natural for one to wonder how these developments will impact hospitals. What can we expect from them in the future? Will there be hospitals at all in a decade’s time?
- #2
OpenIntro Statistics
David Diez, Christopher Barr, Mine Cetinkaya-Rundel, and OpenIntroA complete foundation for Statistics, also serving as a foundation for Data Science.
Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects.
More resources: openintro.org.
- #3
Design and Reality
Rebecca Wirfs-Brock and Mathias Verraes - #4
CCIE SP v5.0
Łukasz Bromirski, Piotr Jablonski, and Nicholas RussoAre you striving to prepare to and pass CCIE SP lab exam? Take the opportunity and get this workbook! With the attached initial cfg files you will prepare yourself for the CCIE SP exam as well as learn SP technologies applicable to all kinds of today modern networks! This workbook covers blueprint topics and provides challenging examples.
- #5
EZ Tools Manuals
Eric Zimmerman and Andrew RathbunEric Zimmerman's Tools are free, open-source, widely taught around the world. This is the official manual for all of his command line and GUI tools.
- #6
R Programming for Data Science
Roger D. PengThis book brings the fundamentals of R programming to you, using the same material developed as part of the industry-leading Johns Hopkins Data Science Specialization. The skills taught in this book will lay the foundation for you to begin your journey learning data science. Printed copies of this book are available through Lulu.
- #7
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
- #8
C++20 - The Complete Guide
Nicolai M. JosuttisAll new language and library features of C++20 (for those who know previous C++ versions).
The book presents all new language and library features of C++20. Learn how this impacts day-to-day programming, to benefit in practice, to combine new features, and to avoid all new traps.
Buy early, pay less, free updates.
Other books:
- #9
Introducing EventStorming
Alberto BrandoliniThe deepest tutorial and explanation about EventStorming, straight from the inventor.
- #10
D3 Start to Finish
Peter CookD3 Start to Finish shows you how to build a custom, interactive and beautiful data visualisation using the JavaScript library D3.js (versions 6 & 7).
The book covers D3.js concepts such as selections, joins, requests, scale functions, events & transitions. You'll put these concepts into practice by building a custom, interactive data visualisation.
Top Bundles
- #1
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #2
Software Architecture
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #3
Pattern-Oriented Memory Forensics and Malware Detection
2 Books
This training bundle for security engineers and researchers, malware and memory forensics analysts includes two accelerated training courses for Windows memory dump analysis using WinDbg. It is also useful for technical support and escalation engineers who analyze memory dumps from complex software environments and need to check for possible... - #5
Practical FP in Scala + Functional event-driven architecture
2 Books
Practical FP in Scala (A hands-on approach) & Functional event-driven architecture, aka FEDA, (Powered by Scala 3), together as a bundle! The content of PFP in Scala is a requirement to understand FEDA so why not take advantage of this bundle!? - #8
Statistics - All Lee Baker's Books
10 Books
This bundle includes all of the statistics books that Lee Baker has published at LeanPub 13 Statistics Books*1 PlaceNo Hassle! All in both epub and mobi formats - perfect for all devices and screen sizes. --------------------------------------------------------- *The book listed as Getting Started With Statistics is a bundle of 4 books...
