Toby Weston - Learning Java Lambdas
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- Book:Learning Java Lambdas
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Learning Java Lambdas: summary, description and annotation
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- Take a deep dive into one of the single most important additions to modern Java
- Master Java lambdas, and fully understand functions, classes, and scope.
- Improve your programming skills, which will enable you to write cleaner and more dynamic code
In this short book, we take an in-depth look at lambdas in Java, and their supporting features. The book covers essential topics, such as functional interfaces and type inference, and the key differences between lambdas and closures. You will learn about the background to functional programming and lambdas, before moving on to understanding the basic syntax of lambdas and what differentiates these anonymous functions from standard anonymous classes. Lastly, youll learn how to invoke lambdas and look at the bytecode generated.
After reading this book, youll understand lambdas in depth, their background, syntax, implementation details, and how and when to use them. Youll also have a clear knowledge of the difference between functions and classes, and why thats relevant to lambdas. This knowledge will enable you to appreciate the improvements to type inference that drive a lot of the new features in modern Java, and will increase your understanding of method references and scoping.
What you will learn- What a lambda is and how it differs from other Java features
- How to use lambdas effectively in your own projects
- The use of method references and advanced scoping
- The difference between lambdas and closures
- The differences in bytecode produced when using lambdas
Toby Weston specializes in modern software development; particularly, functional and object-oriented programming, agile and lean best practice. He wrote the book Essential Acceptance Testing, and he has written for magazines as well as does regularly blogging. He has been part of the software industry for more than fifteen years and loves what he does. He loves talking and writing about it and sharing his experiences online.
Table of Contents- Introduction
- Lambdas Introduction
- Lambdas in Depth
- Bytecode
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Copyright 2017 Toby Weston
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
First published: March 2017
Production reference: 1290317
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham
B3 2PB, UK.
ISBN 978-1-78728-208-7
www.packtpub.com
Author Toby Weston | |
Acquisition Editor Ben Renow-Clarke | Indexer Mariammal Chettiyar |
Technical Editor Nidhisha Shetty | Production Coordinator Arvindkumar Gupta |
Toby Weston specializes in modern software development; particularly, functional and object-oriented programming, agile and lean best practice. He wrote the book Essential Acceptance Testing, and he has written for magazines as well as does regularly blogging. He has been part of the software industry for more than fifteen years and loves what he does. He loves talking and writing about it and sharing his experiences online.
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This book takes an in-depth look at lambdas and their supporting features; things like functional interfaces and type inference.
After reading the book, you'll:
- Have an overview of new features in modern Java
- Understand lambdas in-depth, their background, syntax, implementation details and how and when to use them
- Understand the difference between functions to classes and why that's relevant to lambdas
- Understand the difference between lambdas and closures
- Appreciate the improvements to type inference that drive a lot of the new features
- Be able to use method references and understand scoping and "effectively final"
- Understand the differences in bytecode produced when using lambdas
- Be able to reason about exceptions and exception handling best practice when using lambdas
The latest version of JDK and a text editor or IDE.
Whether you're migrating legacy Java programs to a more modern Java style or building applications from scratch, this book will help you start to leverage the power of functional programming on the Java platform.
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