Java Lambdas and Parallel Streams

Java Lambdas and Parallel Streams PDF Author: Michael Müller
Publisher: Apress
ISBN: 1484224876
Category : Computers
Languages : en
Pages : 91

Get Book Here

Book Description
This compact book introduces the concepts of Java lambdas and parallel streams in a concise form. It begins by introducing new supporting features such as functional interfaces, default methods and more. After this, the author demonstrates how streams can be parallelized in a very simple way—within certain limits, no knowledge about the thread management is needed. Nevertheless, some basic elements in the context of parallelism need to be considered. Here, the book provides a variety of information and best practices. What You Will Learn Master lambdas and streams Work with the default method Harness streams and the stream() function Use Stream and Spliterator Take advantage of parallel streams Work with collectors and concurrency Who This Book Is For Experienced Java programmers and developers.div div>

Java Lambdas and Parallel Streams

Java Lambdas and Parallel Streams PDF Author: Michael Müller
Publisher: Apress
ISBN: 1484224876
Category : Computers
Languages : en
Pages : 91

Get Book Here

Book Description
This compact book introduces the concepts of Java lambdas and parallel streams in a concise form. It begins by introducing new supporting features such as functional interfaces, default methods and more. After this, the author demonstrates how streams can be parallelized in a very simple way—within certain limits, no knowledge about the thread management is needed. Nevertheless, some basic elements in the context of parallelism need to be considered. Here, the book provides a variety of information and best practices. What You Will Learn Master lambdas and streams Work with the default method Harness streams and the stream() function Use Stream and Spliterator Take advantage of parallel streams Work with collectors and concurrency Who This Book Is For Experienced Java programmers and developers.div div>

Java 8 Lambdas

Java 8 Lambdas PDF Author: Richard Warburton
Publisher: "O'Reilly Media, Inc."
ISBN: 1449370861
Category : Computers
Languages : en
Pages : 182

Get Book Here

Book Description
If you’re 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. You’ll 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. Use exercises in each chapter to help you master lambda expressions in Java 8 quickly Explore streams, advanced collections, and other Java 8 library improvements Leverage multicore CPUs and improve performance with data parallelism Use techniques to “lambdify” your existing codebase or library code Learn practical solutions for lambda expression unit testing and debugging Implement SOLID principles of object-oriented programming with lambdas Write concurrent applications that efficiently perform message passing and non-blocking I/O

Java 8 in Action

Java 8 in Action PDF Author: Raoul-Gabriel Urma
Publisher:
ISBN:
Category : Java (Computer program language)
Languages : en
Pages : 424

Get Book Here

Book Description
"Java 8 in Action is a clearly written guide to the new features of Java 8. It begins with a practical introduction to lambdas, using real-world Java code. Next, it covers the new Streams API and shows how you can use it to make collection-based code radically easier to understand and maintain. It also explains other major Java 8 features including default methods, Optional, CompletableFuture, and the new Date and Time API ... This book/course is written for programmers familiar with Java and basic OO programming."-- Resource description page.

Modern Java in Action

Modern Java in Action PDF Author: Raoul-Gabriel Urma
Publisher: Simon and Schuster
ISBN: 1638356971
Category : Computers
Languages : en
Pages : 838

Get Book Here

Book Description
Summary Manning's bestselling Java 8 book has been revised for Java 9! In Modern Java in Action, you'll build on your existing Java language skills with the newest features and techniques. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Technology Modern applications take advantage of innovative designs, including microservices, reactive architectures, and streaming data. Modern Java features like lambdas, streams, and the long-awaited Java Module System make implementing these designs significantly easier. It's time to upgrade your skills and meet these challenges head on! About the Book Modern Java in Action connects new features of the Java language with their practical applications. Using crystal-clear examples and careful attention to detail, this book respects your time. It will help you expand your existing knowledge of core Java as you master modern additions like the Streams API and the Java Module System, explore new approaches to concurrency, and learn how functional concepts can help you write code that's easier to read and maintain. What's inside Thoroughly revised edition of Manning's bestselling Java 8 in Action New features in Java 8, Java 9, and beyond Streaming data and reactive programming The Java Module System About the Reader Written for developers familiar with core Java features. About the Author Raoul-Gabriel Urma is CEO of Cambridge Spark. Mario Fusco is a senior software engineer at Red Hat. Alan Mycroft is a University of Cambridge computer science professor; he cofounded the Raspberry Pi Foundation. Table of Contents PART 1 - FUNDAMENTALS Java 8, 9, 10, and 11: what's happening? Passing code with behavior parameterization Lambda expressions PART 2 - FUNCTIONAL-STYLE DATA PROCESSING WITH STREAMS Introducing streams Working with streams Collecting data with streams Parallel data processing and performance PART 3 - EFFECTIVE PROGRAMMING WITH STREAMS AND LAMBDAS Collection API enhancements Refactoring, testing, and debugging Domain-specific languages using lambdas PART 4 - EVERYDAY JAVA Using Optional as a better alternative to null New Date and Time API Default methods The Java Module System PART 5 - ENHANCED JAVA CONCURRENCY Concepts behind CompletableFuture and reactive programming CompletableFuture: composable asynchronous programming Reactive programming PART 6 - FUNCTIONAL PROGRAMMING AND FUTURE JAVA EVOLUTION Thinking functionally Functional programming techniques Blending OOP and FP: Comparing Java and Scala Conclusions and where next for Java

Functional Programming in Java

Functional Programming in Java PDF Author: Venkat Subramaniam
Publisher: Pragmatic Bookshelf
ISBN: 1680503545
Category : Computers
Languages : en
Pages : 261

Get Book Here

Book Description
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.

Java Concurrency in Practice

Java Concurrency in Practice PDF Author: Tim Peierls
Publisher: Pearson Education
ISBN: 0132702258
Category : Computers
Languages : en
Pages : 428

Get Book Here

Book Description
Threads are a fundamental part of the Java platform. As multicore processors become the norm, using concurrency effectively becomes essential for building high-performance applications. Java SE 5 and 6 are a huge step forward for the development of concurrent applications, with improvements to the Java Virtual Machine to support high-performance, highly scalable concurrent classes and a rich set of new concurrency building blocks. In Java Concurrency in Practice, the creators of these new facilities explain not only how they work and how to use them, but also the motivation and design patterns behind them. However, developing, testing, and debugging multithreaded programs can still be very difficult; it is all too easy to create concurrent programs that appear to work, but fail when it matters most: in production, under heavy load. Java Concurrency in Practice arms readers with both the theoretical underpinnings and concrete techniques for building reliable, scalable, maintainable concurrent applications. Rather than simply offering an inventory of concurrency APIs and mechanisms, it provides design rules, patterns, and mental models that make it easier to build concurrent programs that are both correct and performant. This book covers: Basic concepts of concurrency and thread safety Techniques for building and composing thread-safe classes Using the concurrency building blocks in java.util.concurrent Performance optimization dos and don'ts Testing concurrent programs Advanced topics such as atomic variables, nonblocking algorithms, and the Java Memory Model

What's New in Java 8

What's New in Java 8 PDF Author: Adam L. Davis
Publisher: CreateSpace
ISBN: 9781497533509
Category : Computers
Languages : en
Pages : 62

Get Book Here

Book Description
Java 8 is a giant step forward for the Java language. In Project Lambda, Java gets a new closure syntax (lambda expressions), method-references, and default and static methods on interfaces. It manages to add many of the features of functional languages without losing the clarity and simplicity Java developers have come to expect. In addition, many of the existing Java core library classes have been enhanced with the new Streams API. This book will help you understand Java 8, including: Project Lambda, the new Date-Time API, Streams, default methods, the Nashorn Javascript engine, and more.

Practical Java 8

Practical Java 8 PDF Author: Paulo Silveira
Publisher: Editora Casa do Código
ISBN: 8566250559
Category : Computers
Languages : en
Pages : 168

Get Book Here

Book Description
Are you a programmer fluent in Java? It's time to take the next step! Almost 20 years after it's first version, there is a new Java with important news! Amongst the main new resources, there are the default methods, method references and lambdas. They are simple concepts, but bring important possibilities. In the book we will explore various advancements found in Java 8. Always using practical examples and presenting real usage cases, we migrate the day-to-day legacy code to the new Java 8 functional paradigm. With this triad of concepts, the API managed to evolve in an interesting manner. The java.util.stream and java.util.function packages are deeply explored, presenting simple ways to work with collections and other data structures. Streams and Collectors will be part of your routine and will become as essential as Collections and the java.io currently are to your applications. Lastly, we'll see how the new API java.time comes to change from water to wine the way how we work with dates and times.

Java 8 Lambda Expressions and Streams

Java 8 Lambda Expressions and Streams PDF Author: Marty Hall
Publisher:
ISBN:
Category :
Languages : en
Pages :

Get Book Here

Book Description
6+ Hours of Video Instruction Overview Java 8 Lambda Expressions and Streams LiveLessons, 2nd Edition, covers the most important new features introduced in Java 8. The video training is presented by Marty Hall, a bestselling author, world-renowned instructor, and president of the training company coreservlets.com. If you are comfortable with previous Java versions and want to learn the new Java 8 features as quickly as possible, continue on: You are in the right place. If, however, you are new to Java and want learn the full range of Java programming, but in the context of the latest version (Java 8), please see the video Learning Modern Java: A Crash Course Using Java 8 LiveLessons instead. Description This LiveLessons video explains the syntax and usage of Java 8 lambda expressions, shows the prebuilt functions, covers streams thoroughly, describes best practices for the use of parallel operations, provides examples of the types of applications to which lambdas and streams are well suited, and shows how applying the power of streams can dramatically simplify file I/O. The final version of Java 8 was released in 2014, and it is by far the most significant upgrade to the Java programming language since at least 2004, probably since Java's inception. In general, Java 8's high-level goals were to make code more flexible, to better use multiple cores, and to more easily deal with large data sets. Specifically, there are four main reasons that it is important for existing Java programmers to know the new Java 8 features: More flexible and reusable code (thanks to lambdas). Lambda expressions in Java 8 are a way of representing "functions," and their judicious use can make your code significantly more adaptable and reusable. Convenience (thanks to high-level Stream methods). Streams are wrappers around collections or other data sources that use lambda expressions pervasively. They support many convenient and high-performance operations that use lambdas, including "map," "reduce," "filter," and "forEach." These methods make many types of code much simpler to write compared to the clunky and low-level Collection methods. Faster and more memory-efficient code (thanks to lazy evaluation and automatic parallelization). Streams support lazy evaluation, so if you map firstName over Employees, filter ones that start with "P," then choose the first, it really only maps and filters until the first match. Streams can also be designated as parallel, so that t...

Beginning Java 8 Language Features

Beginning Java 8 Language Features PDF Author: Kishori Sharan
Publisher: Apress
ISBN: 1430266597
Category : Computers
Languages : en
Pages : 690

Get Book Here

Book Description
Beginning Java 8 Language Features covers essential and advanced features of the Java programming language such as the new lambda expressions (closures), inner classes, threads, I/O, Collections, garbage collection, streams, and more. Author Kishori Sharan provides over 60 diagrams and 290 complete programs to help you visualize and better understand the topics covered in this book. The book starts with a series of chapters on the essential language features provided by Java, including annotations, inner classes, reflection, and generics. These topics are then complemented by details of how to use lambda expressions, allowing you to build powerful and efficient Java programs. The chapter on threads follows this up and discusses everything from the very basic concepts of a thread to the most advanced topics such as synchronizers, the fork/join framework, and atomic variables. This book contains unmatched coverage of Java I/O, including NIO 2.0, the Path API, the FileVisitor API, the watch service and asynchronous file I/O. With this in-depth knowledge, your data- and file-management programs will be able to take advantage of every feature of Java's powerful I/O framework. Finally, you'll learn how to use the Stream API, a new, exciting addition to Java 8, to perform aggregate operations on collections of data elements using functional-style programming. You'll examine the details of stream processing such as creating streams from different data sources, learning the difference between sequential and parallel streams, applying the filter-map-reduce pattern, and dealing with optional values.