Intermediate level, for programmers fairly familiar with Java, but new to the functional style of programming and lambda expressions.Get ready to program in a whole new way. Functional Programming in Java will help you quickly get on top of the new, essential Java 8 language features and the functional style that will change and improve your code. This short, targeted book will help you make the paradigm shift from the old imperative way to a less error-prone, more elegant, and concise coding style that's also a breeze to parallelize. You'll explore the syntax and semantics of lambda expressions, method and constructor references, and functional interfaces. You'll design and write applications better using the new standards in Java 8 and the JDK. Lambda expressions are lightweight, highly concise anonymous methods backed by functional interfaces in Java 8. You can use them to leap forward into a whole new world of programming in Java. With functional programming capabilities, which have been around for decades in other languages, you can now write elegant, concise, less error-prone code using standard Java. This book will guide you though the paradigm change, offer the essential details about the new features, and show you how to transition from your old way of coding to an improved style.In this book you'll see popular design patterns, such as decorator, builder, and strategy, come to life to solve common design problems, but with little ceremony and effort. With these new capabilities in hand, Functional Programming in Java will help you pick up techniques to implement designs that were beyond easy reach in earlier versions of Java. You'll see how you can reap the benefits of tail call optimization, memoization, and effortless parallelization techniques.Java 8 will change the way you write applications. If you're eager to take advantage of the new features in the language, this is the book for you.What you need:Java 8 with support for lambda expressions and the JDK is required to make use of the concepts and the examples in this book.
Write code that's clean, concise, and to the point: code that others will read with pleasure and reuse. Comparing your code to that of expert programmers is a great way to improve your coding skills. Get hands-on advice to level up your coding style through small and understandable examples that compare flawed code to an improved solution. Discover handy tips and tricks, as well as common bugs an experienced Java programmer needs to know. Make your way from a Java novice to a master craftsman.
This book is a useful companion for anyone learning to write clean Java code. The authors introduce you to the fundamentals of becoming a software craftsman, by comparing pieces of problematic code with an improved version, to help you to develop a sense for clean code. This unique before-and-after approach teaches you to create clean Java code.
Learn to keep your booleans in check, dodge formatting bugs, get rid of magic numbers, and use the right style of iteration. Write informative comments when needed, but avoid them when they are not. Improve the understandability of your code for others by following conventions and naming your objects accurately. Make your programs more robust with intelligent exception handling and learn to assert that everything works as expected using JUnit5 as your testing framework. Impress your peers with an elegant functional programming style and clear-cut object-oriented class design.
Writing excellent code isn't just about implementing the functionality. It's about the small important details that make your code more readable, maintainable, flexible, robust, and faster. Java by Comparison teaches you to spot these details and trains you to become a better programmer.
What You Need:
You need a Java 8 compiler, a text editor, and a fresh mind.That's it.
If youâre a developer with core Java SE skills, this hands-on book takes you through the language changes in Java 8 triggered by the addition of lambda expressions. Youâll learn through code examples, exercises, and fluid explanations how these anonymous functions will help you write simple, clean, library-level code that solves business problems.
Lambda expressions are a fairly simple change to Java, and the first part of the book shows you how to use them properly. Later chapters show you how lambda functions help you improve performance with parallelism, write simpler concurrent code, and model your domain more accurately, including building better DSLs.
Raspberry Pi with Java: Programming the Internet of Things (IoT) fills an important gap in knowledge between seasoned Java developers and embedded-hardware gurus, taking a project-based approach to skills development from which both hobbyists and professionals can learn. By starting with simple projects based on open-source libraries such as Pi4J, hobbyists can get immediate results without a significant investment in time or hardware.
Later projects target simplified industrial use cases where professionals can start to apply their skills to practical problems in the fields of home automation, healthcare, and robotics. This progression prepares you to be an active participant in the IoT revolution that is reshaping our lives.
For the hobbyist:
For the professional computer engineer:
Wu uses a gentler approach to teaching students how to design their own classes, separating the coverage into two chapters. GUI coverage is also located independently in the back of the book and can be covered if desired.
Wu also features a robust set of instructors' materials including PowerPoint slides, code samples, and quiz questions.
Teams working on the JVM can now say goodbye forever to misunderstood requirements, tedious manual acceptance tests, and out-of-date documentation. Cucumber - the popular, open-source tool that helps teams communicate more effectively with their customers - now has a Java version, and our bestselling Cucumber Book has been updated to match. The Cucumber for Java Book has the same great advice about how to deliver rock-solid applications collaboratively, but with all code completely rewritten in Java. New chapters cover features unique to the Java version of Cucumber, and reflect insights from the Cucumber team since the original book was published.
Until now it's been difficult for teams developing Java applications to learn how to benefit from Behaviour-Driven Development (BDD). This book changes all that by describing in detail how to use Cucumber to harness the power of plain language specifications in your development process.
In part 1, you'll discover how to use Cucumber's Gherkin DSL to describe the behavior your customers want from the system. You'll also learn how to write Java code that interprets those plain language specifications and checks them against your application. Part 2 guides you through a worked example, using Spring, MySQL, and Jetty. Enhanced chapters teach you how to use Selenium to drive your application and handle asynchronous Ajax calls, and new chapters cover Dependency Injection (DI) and advanced techniques to help keep your test suites fast. Part 3 shows you how to integrate Cucumber with your Continuous Integration (CI) system, work with a REST web service, and even use BDD with legacy applications.
Written by the creator of Cucumber and two of its most experienced users and contributors, The Cucumber for Java Book is an authoritative guide that will give you and your team all the knowledge you need to start using Cucumber with confidence.
In todayâs app-driven era, when programs are asynchronous and responsiveness is so vital, reactive programming can help you write code thatâs more reliable, easier to scale, and better-performing. With this practical book, Java developers will first learn how to view problems in the reactive way, and then build programs that leverage the best features of this exciting new programming paradigm.
Authors Tomasz Nurkiewicz and Ben Christensen include concrete examples that use the RxJava library to solve real-world performance issues on Android devices as well as the server. Youâll learn how RxJava leverages parallelism and concurrency to help you solve todayâs problems. This book also provides a preview of the upcoming 2.0 release.
The second edition adds new language features and end-of-chapter GUI sections that include animation. New chapters include an introduction to the Java Collections Framework and an in-depth treatment of recursion. Two new supplementary chapters on the bookâs companion website describe the JavaFX GUI platform.
Before diving into object-oriented programming (OOP) in Chapter 6, the second edition includes a âmini-chapterâ that describes how to write multiple-method programs in a non-OOP environment. Those who want to continue this theme can follow an optional âlate objectsâ approach by reading two chapters on the bookâs website before returning to OOP in Chapter 6. Some key features include:
â¢A conversational, easy-to-follow writing style.
â¢Simple GUI programming early, in an optional standalone graphics track.
â¢Well-identified alternatives for altering the book's sequence to fit individual needs.
â¢Well-developed projects in six different academic disciplines, with a handy summary.
â¢Detailed customizable PowerPointTM lecture slides, with icon-keyed hidden notes.
I have used the Dean and Dean book in my Introduction to Java Programming class for the past year. This is an excellent text and I am very happy with it. It is the only text that I have ever used that always gets positive comments from students on my class evaluations even though there is no question asked about the text. The chapters are well thought out and the coverage is complete. The progression from topic-to-topic is masterful, and the writing is exceptionally clear and at the perfect level for an introductory Java class.
â Ralph Duffy, South Seattle Community College
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