You can find further details on the support for writing Scala in other code editors at the Scala Documentation.
It is worth pointing out that there are numerous editors that can assist you with writing Scala code, including, ScalaIDE, EMACS, and others. The features provided by the Community edition would be just fine to run the code snippets that we will demonstrate in this book.
There is also an Ultimate commercial option that provides additional built-in features. At the time of writing, the current version of IntelliJ is IntelliJ IDEA 2019.1.2 for the free Community download. Otherwise, that’s OK as we will walk-through the installation steps for IntelliJ. If you have programmed in another language before in the like of Java, you may already be familiar with the IntelliJ IDEA code editor. As a reminder, we will use the IntelliJ IDEA code editor to help us easily write and execute our Scala code. This tutorial is a much needed update on the previous instructions for installing the IntelliJ IDEA code editor.