You'll get the most out of this book if you already have some kind of experience with the Vaadin Framework. If you don't, go through the official online tutorial at https://vaadin.com/docs/v8/framework/tutorial.html before continuing with this book.

In order to use the companion code, you need the Java SE Development Kit and Java EE SDK version 8 or later. You also need Maven version 3 or later. A Java IDE with Maven support, such as IntelliJ IDEA, Eclipse, or NetBeans is recommended.