Explore Java 9 with JShell and UML
Key Features
- 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
Book 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.
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
Who this book is 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.
Table of Contents
- JShell: A Read-Evaluate-Print-Loop for Java 9
- Objects from the real-world to UML diagrams and Java 9 in the JShell
- Classes and instances in Java 9
- Encapsulation of data
- Mutable and immutable classes
- Inheritance, abstraction, extension and specialization
- Members inheritance, typecasting and polymorphism
- Contract programming with interfaces
- Advanced Contract Programming with Interfaces
- Maximization of code reuse with generics in Java 9
- Advanced generics in Java 9
- Object-Oriented, Functional Programming and Lambda Expressions in Java 9
- Modularity in Java 9
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