Home > Store

Java 8 Lambda Expressions and Streams LiveLessons (Video Training), Downloadable Version, 2nd Edition

Downloadable Video

  • Your Price: $159.99
  • List Price: $199.99
  • About this video
  • Accessible from your Account page after purchase. Requires the free QuickTime Player software.

    Videos can be viewed on: Windows 8, Windows XP, Vista, 7, and all versions of Macintosh OS X including the iPad, and other platforms that support the industry standard h.264 video codec.

Register your product to gain access to bonus material or receive a coupon.

Description

  • Copyright 2016
  • Edition: 2nd
  • Downloadable Video
  • ISBN-10: 0-13-438357-5
  • ISBN-13: 978-0-13-438357-6

6+ Hours of Video Instruction
 
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:

  1. 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.
  2. 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.
  3. 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 the operations are automatically done in parallel, without any explicit multithreading code.
  4. Adapt to the times. Others will be using lambdas and streams because they are standard parts of Java SE as of 2014. So, you have to learn the Java 8 features simply to be able to use and modify others’ code. Besides, once you get a taste of their power, you will want to use the new features frequently.

The source code repository for this LiveLesson can be downloaded from http://www.coreservlets.com/java-8-tutorial/. This site contains the complete source code for all examples in the video, as well as exercises and exercise solutions for each topic.

Finally, you can contact the author directly at hall@coreservlets.com with questions or suggestions or to inquire about customized training courses on Java EE and JavaScript topics to be held onsite at your organization.

Skill Level
  • Intermediate to Advanced

What You Will Learn
  • Syntax of lambda expressions
  • How lambdas can make your code more flexible and reusable
  • Technologies that support lambdas: the @FunctionalInterface annotation, method references, lambda scoping rules, effectively final local variables, and higher-order functions
  • Lambda building blocks from the java.util.function package
  • Using static and default methods in Java 8 interfaces
  • Building streams from arrays, lists, and individual entries
  • Outputting streams into arrays or lists
  • Core stream methods: map, filter, forEach, and so forth
  • The new Optional class
  • Lazy evaluation and short-circuit stream operations
  • Specialized streams for dealing with numbers
  • Reduction operations: reduce, min, max, sum, average
  • Grouping stream elements: fancy uses of collect
  • Parallel streams: syntax and best practices
  • Infinite (unbounded) streams
  • Supporting Java 8 features: interfaces with concrete methods and the Optional class
  • File I/O in Java 8: applying the power of streams

Who Should Take This Course

Course Requirements
  • This LiveLessons video assumes that you have a medium to high amount of experience with earlier Java versions. It covers only the new features of the language that were added in Java 8. However, no previous experience with functional programming is required.
 
Table of Contents
Lesson 1: Installation, Setup, and Quick Review of Supporting Topics
Lesson 1 shows you where to get the Java development kit and the official API documentation and how to create and execute Java programs in the Eclipse development environment. It also provides a quick review of pre-lambda handlers and building generic methods and classes.

Lesson 2: Lambda Expressions in Java 8--Part 1: Basics
Lesson 2 is the first of four lessons on lambda expressions. Lambdas are Java's way of representing functions. The lesson introduces lambda expressions and illustrates how their use can make your code more flexible and reusable. The lesson closes with two examples of applications that would be difficult and cumbersome without lambdas but that are relatively simple and short with them. The first is a numerical integration routine and the second is a reusable tool for collecting performance-timing results.

Lesson 3: Lambda Expressions in Java 8--Part 2
Lesson 3 covers four topics: the @FunctionalInterface annotation, method references, lambda variable scoping rules, and the rules regarding effectively final local variables. The lesson shows you how the use of @FunctionalInterface improves the internal implementation of the previous numerical-integration and timing applications and how method references make it simpler to use the numerical integration code.

Lesson 4: Lambda Expressions in Java 8--Part 3: Lambda Building Blocks in java.util.function
Lesson 4 looks at the pre-built functions in the java.util.function package. The lesson starts with the simply typed versions and shows how using one of them can shorten numerical-integration code. It then looks at five generically typed versions: Predicate, Function, Consumer, Supplier, and BinaryOperator. Most Java developers are not used to thinking about functional programming, so this lesson shows how applying functions can make certain applications shorter, simpler, easier to maintain, and more reusable.

Lesson 5: Lambda Expressions in Java 8--Part 4
Lesson 5 discusses two features of Java interfaces: default methods and static methods. It then uses this idea to improve the previous application that collected timing information. The second half of the lesson illustrates the power that comes from having methods that return lambdas, known as higher order functions.

Lesson 6: Streams in Java 8--Part 1
Lesson 6 is the first of three lessons on streams. It provides an overview of streams and explains their benefits. It then shows you how to create streams and output them into standard Java. It also explains data structures and four of the most important stream methods: forEach, filter, map, and findFirst. The lesson closes with a discussion of lazy evaluation and shows you how it can dramatically improve data processing performance.

Lesson 7: Streams in Java 8--Part 2
Lesson 7 starts out by discussing IntStream and DoubleStream, which are specializations of streams for dealing with numbers. It then looks in great detail at reduction operations: operations that combine stream values to produce a single result. The lesson starts out with simple ones like min, max, and sum and then finishes with the general-purpose reduce method. Finally, it discusses other stream methods, such as limit, skip, sorted, and anyMatch.

Lesson 8: Streams in Java 8--Part 3
Lesson 8 starts off by looking at fancy ways to output, partition, or group streams. It then explains how to use parallel streams--one of the most powerful stream features--and gives a number of examples where parallel streams do or do not work effectively. The lesson closes with an explanation of so-called "infinite" streams: streams that have no preset size but rather use a generator function to build the elements as they are needed.

Lesson 9: Simplified File I/O--Applying the Power of Streams in Java 8
Lesson 9 looks at File I/O. It starts by explaining both file reading and file writing, but in particular, it shows how applying the power of streams can dramatically simplify reading and processing files and folders. Specifically, it illustrates why the new Files.lines method is such a huge improvement over alternatives available in earlier Java versions.

About LiveLessons Video Training
The LiveLessons Video Training series publishes hundreds of hands-on, expert-led video tutorials covering a wide selection of technology topics designed to teach you the skills you need to succeed. This professional and personal technology video series features world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, IBM Press, Pearson IT Certification, Prentice Hall, Sams, and Que. Topics include: IT certification, programming, Web development, mobile development, home and office technologies, business and management, and more. View all LiveLessons on InformIT at: http://www.informit.com/livelessons.
 

Updates

Submit Errata

More Information

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.

Overview


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information


To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information


Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children


This site is not directed to children under the age of 13.

Marketing


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information


If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.

Choice/Opt-out


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information


Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents


California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020