Java 9 with JShell

Explore Java 9 with JShell and UML About This Book • A full account of Java 9s 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 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. 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 In Detail 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. Style and approach You will learn by doing: : using JShell as their prototyping environment you will take full advantage of the new features of Java 9 in particular the full module system and the functional features of Java 9.. There wont be any theory only small and medium-sized exampled enabling the reader to use the new Java features in professional software engineering projects.