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Functional Programming in Java

How functional techniques improve your Java programs
Pierre-Yves Saumont
  • January 2017
  • ISBN 9781617292736
  • 472 pages
  • printed in black & white

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An excellent introduction to functional programming for Java programmers.

Piotr Bzdyl, SmartRecruiters
Look inside

Functional Programming in Java teaches Java developers how to incorporate the most powerful benefits of functional programming into new and existing Java code. You'll learn to think functionally about coding tasks in Java and use FP to make your applications easier to understand, optimize, maintain, and scale.

"Really wonderful book for starting FP for a Java Developer."

~ Rambabu Posa

"This book is perfect."

~ Philippe Charriere

"This is the most detailed book to date about functional programming in Java."

~ Ivan Milosavljevic

"I haven't seen tutorials or resources that cover FP so deeply and in Java."

~ Bruce Hernandez

about the technology

Here's a bold statement: learn functional programming and you'll be a better Java developer. Fortunately, you don't have to master every aspect of FP to get a big payoff. If you take in a few core principles, you'll see an immediate boost in the scalability, readability, and maintainability of your code. And did we mention that you'll have fewer bugs? Let's get started!

about the book

Functional Programming in Java teaches you how to incorporate the powerful benefits of functional programming into new and existing Java code. This book uses easy-to-grasp examples, exercises, and illustrations to teach core FP principles such as referential transparency, immutability, persistence, and laziness. Along the way, you'll discover which of the new functionally inspired features of Java 8 will help you most.

what's inside

  • Writing code that's easier to read and reason about
  • Safer concurrent and parallel programming
  • Handling errors without exceptions
  • Java 8 features like lambdas, method references, and functional interfaces

about the reader

Written for Java developers with no previous FP experience.

about the author

Pierre-Yves Saumont is a seasoned Java developer with three decades of experience designing and building enterprise software. He is an R&D engineer at Alcatel-Lucent Submarine Networks.

FREE domestic shipping on orders of three or more print books

Helped me understand the basic concepts of functional programming.

Philippe Charriere, GitHub

The fundamental concepts and mindset of functional programming explained with the help of a non-esoteric programming language like Java.

Sebastian Metzger, snapADDY

Shows you how to write modern Java code.

Alessandro Campeis, Vimar
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