In a typical Java application, to create a console app, a developer places code inside a class's main method. However, in a Spring Boot app, the Spring context is not implicitly available inside main.

To demonstrate how to format a table with Java printf statements, let’s create a chart that displays information about Java’s 8 primitive types.. Above is how the finished printf table will look when ...

The demo application. For this tour, you’ll need a Java JDK and Maven installed. We’ll start by creating a fresh application with a Maven archetype, like what’s shown in Listing 1.