Book Image

Java 9 Programming By Example

By : Peter Verhas
Book Image

Java 9 Programming By Example

By: Peter Verhas

Overview of this book

This book gets you started with essential software development easily and quickly, guiding you through Java’s different facets. By adopting this approach, you can bridge the gap between learning and doing immediately. You will learn the new features of Java 9 quickly and experience a simple and powerful approach to software development. You will be able to use the Java runtime tools, understand the Java environment, and create Java programs. We then cover more simple examples to build your foundation before diving to some complex data structure problems that will solidify your Java 9 skills. With a special focus on modularity and HTTP 2.0, this book will guide you to get employed as a top notch Java developer. By the end of the book, you will have a firm foundation to continue your journey towards becoming a professional Java developer.
Table of Contents (17 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Chapter 8. Extending Our E-Commerce Application

In the last chapter, we started developing an e-commerce application and we created the functionality to look up products based on their ID and, also, by some parameters. In this chapter, we will extend the functionality so that we can also order the products we selected. While doing so, we will learn new technologies, focusing on functional programming in Java and on some other language features, such as reflection and annotation handling during runtime, and scripting interface.

As we did in the previous chapters, we will develop the application step by step. As we discover the newly learnt technologies, we will refactor the code to enroll the new tools and methods to produce more readable and effective code. We will also mimic the development of real-life projects in the sense that at the start, we will have simple requirements, and later, new requirements will be set as our imagined business develops and sells more and more products. We will...