In the previous chapter, we took a detailed look at the problems associated with modularizing Java code pre-Java 9, as well as the new module construct in Java 9 and Project Jigsaw. Before we examine how Java modularity solves these problems, you'll need to first understand what a Java module looks like. In this chapter, you'll create your first Java 9 module and learn what it takes to build and execute code in a Java module. Here are the top-level topics you'll be learning in this chapter:
- Setting up the JDK with Java 9
- Creating a new Java 9 module
- Defining a module (using module-info.java)
- Compiling and executing a module
- Handling possible errors
You'll be building a sample Java 9 application throughout this book as you learn the different concepts related to modularity. The application you'll build is an address book...
