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.
