Adding the Java kernel to your installation

In this section, we will add the Java kernel to your installation. The steps are very similar, regardless of whether you're installing in a Windows or a macOS environment.

The Java kernel, IJava, was developed and maintained by Spence Park at https://github.com/SpencerPark/IJava. There are a couple of requirements for using the Java kernel, which will be covered in the following sections.

Installing Java 9 or later

You can check the version of Java you have installed by using the following command at a command-line prompt:

java --version

We need version 9 or later.

Also, the installed version must be a JDK. The JRE will not suffice. You can download the latest Java version at www.oracle.com/technetwork/java. At the time of writing this book, version 10 was generally available so I installed that version, as you can see from the following screenshot:

A Jupyter environment is required

This may sound redundant, but this is broad, allowing IJava to run in...