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Java 9 with JShell

You're reading from Java 9 with JShell Introducing the full range of Java 9's new features via JShell

Product type Paperback

Published in Mar 2017

Publisher Packt

ISBN-13 9781787282841

Length 408 pages

Edition 1st Edition

Languages

Java

Concepts

Object Oriented Programming

Author (1):

Gaston C. Hillar

View More author details

Table of Contents (16) Chapters

Preface

1. JShell – A Read-Evaluate-Print-Loop for Java 9 FREE CHAPTER

2. Real-World Objects to UML Diagrams and Java 9 via JShell

3. Classes and Instances

4. Encapsulation of Data

5. Mutable and Immutable Classes

6. Inheritance, Abstraction, Extension, and Specialization

7. Members Inheritance and Polymorphism

8. Contract Programming with Interfaces

9. Advanced Contract Programming with Interfaces

10. Maximization of Code Reuse with Generics

11. Advanced Generics

12. Object-Oriented, Functional Programming, and Lambda Expressions

13. Modularity in Java 9

A. Exercise Answers

Index

Chapter 1. JShell – A Read-Evaluate-Print-Loop for Java 9

In this chapter, we will start our journey toward object-oriented programming with Java 9. You will learn how to launch and work with a new utility introduced with Java 9 that will allow us to easily run Java 9 code snippets and print their results: JShell. This utility will make it easy for you to learn object-oriented programming. We will do the following:

Get ready for our journey toward OOP (Object-Oriented Programming) with Java 9
Install the required software on Windows, macOS, or Linux
Understand the benefits of working with a REPL (Read-Evaluate-Print-Loop) utility
Check default imports and use auto-complete features
Run Java 9 code in JShell
Evaluate expressions
Work with variables, methods, and sources
Edit the source code in our favorite external code editor
Load source code

You have been reading a chapter from

Java 9 with JShell

Published in: Mar 2017

Publisher: Packt

ISBN-13: 9781787282841

© 2017 Packt Publishing Limited All Rights Reserved

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Authors (1)

Gaston C. Hillar

Gaston C. Hillar

Gaston C. Hillar is Italian and has been working with computers since he was 8 years old. Gaston has a Bachelor's degree in computer science (graduated with honors) and an MBA. Currently, Gaston is an independent IT consultant and a freelance author who is always looking for new adventures anywhere in the world. He was a senior contributing editor at Dr. Dobb's, and has written more than a hundred articles on software development topics. He has received the prestigious Intel Black Belt Software Developer award eight times. He has written many articles about Java for Oracle Java Magazine. Gaston was also a former Microsoft MVP in technical computing. He lives with his wife, Vanesa, and his two sons, Kevin and Brandon.

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