Java 9 with JShell: Introducing the full range of Java 9's new features via JShell

Gaston C. Hillar

$54.99

2 (2 Ratings)

Paperback Mar 2017 408 pages 1st Edition

Gaston C. Hillar

$54.99

2 (2 Ratings)

Paperback Mar 2017 408 pages 1st Edition

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

View table of contents

Preview Book

Download Code

Key benefits

• A full account of Java 9’s new features
• This tutorial emphasises fluency using JShell exercises
• Get a thorough introduction to contract programming code reuse via Java generics
• Learn how to use the new module system
• How to use proper functional programming style inside Java 9

Description

The release of Java 9 has brought many subtle and not-so-subtle changes to the way in which Java programmers approach their code. The most important ones are definitely the availability of a REPL, known as JShell, which will make experiments and prototyping much more straightforward than the old IDE-based project-led approach. Another, more subtle change can be seen in the module system, which will lead to more modularized, maintainable code. The techniques to take full advantage of object-oriented code, functional programming and the new modularity features in Java 9 form the main subjects of this book. Each chapter will add to the full picture of Java 9 programming starting out with classes and instances and ending with generics and modularity in Java.

Who is this book for?

This book can be understood by anyone who is a graduate of computer science or someone who has just begun working as a software engineer. Basically, an understanding of an object-oriented programming language like Python, C++ or indeed, an earlier Java version is sufficient. It would be helpful to have participated in the full product cycle of a software engineering project.

What you will learn

• Engage with object-oriented programming in Java 9, starting with code snippets in JShell
• Optimize your code, applying functional programming features
• Discover the advantages of modularity
• Become very proficient at using JShell itself
• Learn the new approach to Java programming, which uses the REPL as a prototyping tool

Estimated delivery fee Deliver to Taiwan

Standard delivery 10 - 13 business days

$12.95

Premium delivery 5 - 8 business days

$45.95

(Includes tracking information)

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

Frequently bought together

$43.99

$48.99

$54.99

Total $ 147.97

FAQs

What is the delivery time and cost of print book?

Shipping Details

USA:

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.

Unfortunately, due to several restrictions, we are unable to ship to the following countries:

Afghanistan
American Samoa
Belarus
Brunei Darussalam
Central African Republic
The Democratic Republic of Congo
Eritrea
Guinea-bissau
Iran
Lebanon
Libiya Arab Jamahriya
Somalia
Sudan
Russian Federation
Syrian Arab Republic
Ukraine
Venezuela

What is custom duty/charge?

Customs duty are charges levied on goods when they cross international borders. It is a tax that is imposed on imported goods. These duties are charged by special authorities and bodies created by local governments and are meant to protect local industries, economies, and businesses.

Do I have to pay customs charges for the print book order?

The orders shipped to the countries that are listed under EU27 will not bear custom charges. They are paid by Packt as part of the order.

List of EU27 countries: www.gov.uk/eu-eea:

A custom duty or localized taxes may be applicable on the shipment and would be charged by the recipient country outside of the EU27 which should be paid by the customer and these duties are not included in the shipping charges been charged on the order.

How do I know my custom duty charges?

The amount of duty payable varies greatly depending on the imported goods, the country of origin and several other factors like the total invoice amount or dimensions like weight, and other such criteria applicable in your country.

For example:

If you live in Mexico, and the declared value of your ordered items is over $ 50, for you to receive a package, you will have to pay additional import tax of 19% which will be $ 9.50 to the courier service.
Whereas if you live in Turkey, and the declared value of your ordered items is over € 22, for you to receive a package, you will have to pay additional import tax of 18% which will be € 3.96 to the courier service.

How can I cancel my order?

Cancellation Policy for Published Printed Books:

You can cancel any order within 1 hour of placing the order. Simply contact [email protected] with your order details or payment transaction id. If your order has already started the shipment process, we will do our best to stop it. However, if it is already on the way to you then when you receive it, you can contact us at [email protected] using the returns and refund process.

Please understand that Packt Publishing cannot provide refunds or cancel any order except for the cases described in our Return Policy (i.e. Packt Publishing agrees to replace your printed book because it arrives damaged or material defect in book), Packt Publishing will not accept returns.

What is your returns and refunds policy?

Return Policy:

We want you to be happy with your purchase from Packtpub.com. We will not hassle you with returning print books to us. If the print book you receive from us is incorrect, damaged, doesn't work or is unacceptably late, please contact Customer Relations Team on [email protected] with the order number and issue details as explained below:

If you ordered (eBook, Video or Print Book) incorrectly or accidentally, please contact Customer Relations Team on [email protected] within one hour of placing the order and we will replace/refund you the item cost.
Sadly, if your eBook or Video file is faulty or a fault occurs during the eBook or Video being made available to you, i.e. during download then you should contact Customer Relations Team within 14 days of purchase on [email protected] who will be able to resolve this issue for you.
You will have a choice of replacement or refund of the problem items.(damaged, defective or incorrect)
Once Customer Care Team confirms that you will be refunded, you should receive the refund within 10 to 12 working days.
If you are only requesting a refund of one book from a multiple order, then we will refund you the appropriate single item.
Where the items were shipped under a free shipping offer, there will be no shipping costs to refund.

On the off chance your printed book arrives damaged, with book material defect, contact our Customer Relation Team on [email protected] within 14 days of receipt of the book with appropriate evidence of damage and we will work with you to secure a replacement copy, if necessary. Please note that each printed book you order from us is individually made by Packt's professional book-printing partner which is on a print-on-demand basis.

What tax is charged?

Currently, no tax is charged on the purchase of any print book (subject to change based on the laws and regulations). A localized VAT fee is charged only to our European and UK customers on eBooks, Video and subscriptions that they buy. GST is charged to Indian customers for eBooks and video purchases.

What payment methods can I use?

You can pay with the following card types:

Visa Debit
Visa Credit
MasterCard
PayPal

What is the delivery time and cost of print books?

Shipping Details

USA:

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Unfortunately, due to several restrictions, we are unable to ship to the following countries:

Afghanistan
American Samoa
Belarus
Brunei Darussalam
Central African Republic
The Democratic Republic of Congo
Eritrea
Guinea-bissau
Iran
Lebanon
Libiya Arab Jamahriya
Somalia
Sudan
Russian Federation
Syrian Arab Republic
Ukraine
Venezuela

ares09x Apr 30, 2017

Three things:1) The author seems to assume that the reader knows something about O-O languages; it's definitely not for those new to O-O.2) There are a few errors in the end-of-chapter "test your knowledge" questions.3) There's a major problem in Chapter 9 - the section called "Downcasting with interfaces and classes" is not about downcasting, it's about upcasting. When you go up a class or interface hierarchy, as the examples in this section do, from a more specific class or interface to a more general one, you are upcasting. Downcasting is treating an object that is declared as a more general type as if it were a more specific type. So, in the author's example, treating a SpiderDog object as though it were a DrawableInComic object is upcasting; treating an object declared to be of type DrawableInComic as though it were a SpiderDog object is downcasting.Note: this problem may be corrected in the paperback version, I obtained a pdf version of this book.

Amazon Verified review

Markus W. Apr 27, 2017

"Introducing the full range of Java 9's new features via JShell" is the subtitle of this book.More than half of the book is about basic concepts of object oriented programming. For a professional knowing his/her Java these chapters are completely useless.Neither default methods in interfaces nor generics or functional programming with lambda are new to Java 9. The new Stream methods iterate, takeWhile, dropWhile, and ofNullable to be introduced with Java 9 are not even mentioned.The pages are filled with repeated examples and how they are evaluated/displayed in JShell (pleeease, show me one or two examples, not the same five times with different values).But nonetheless learners would have a hard time with this book, too, because the author repeatedly uses concepts without introducing them properly. Ten pages with skecthes of geometric shapes shall lead you to abstraction and inheritance, without defining these concepts at this point. Base classes and interfaces are mixed chapters before they are discussed in detail. The author talks about the benefits of constructors, switches to garbage collection, and only afterwards really tells you what a constructor is.And more basic concepts (data types, variables, methods, conditions, loops) are missing completely, so no chance to learn the language with this book. Even collections appear at one point in the examples out of nowhere.Furthermore some of the presented ideas are misleading. Using immutable objects to prevent problems with concurrent programs is neither the solution to thread safe programs nor the sense of immutable objects.The description of the Jigsaw modularity system new to Java 9 lacks important features, e.g. how to integrate new code with existing one (designed for Java 8 or lower) or how to open modules for reflection, and only provides a basic idea.Even the introduction to JShell is quite basic, not a word about how to set the classpath or modulepath in JShell--which you will need to work with this tool productively.Other changes in the tooling around Java 9 or new API components are completely ignored.Of course, this is an early shot at Java 9 (and an expensive one), but neither will it present you the full range of new features nor is it an introduction for starters. Maybe programmers proficient in other languages but new to Java could benefit from the book. But even for them there will be better introductions to Java 9 soon.

Java 9 with JShell: Introducing the full range of Java 9's new features via JShell

What do you get with Print?