Installing Scala on your computer

An excellent resource for Scala installation on your computer is the Scala official page at https://www.scala-lang.org/download/. It mentions how important it is to make sure that Java JDK 8 is installed on your machine. This can be checked by running the following command:

$ java -version

If it is missing or if you have an older version of JDK, please follow the instructions on Java SE downloads from https://www.oracle.com/technetwork/java/javase/downloads/index.html for your OS. Open JDK (http://openjdk.java.net/install/) is another resource for installing JDK.

A successfully installed JDK 8 should output something similar to the following code:

$ java -version
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

$ javac -version
javac 1.8.0_181