How To Install Scala On MACOS

How to Install Scala on macOS

Step 1: Check for installation of Java Development Kit (JDK)

From a Terminal window, type:

$java –version

If it is already installed, skip to step 4.

Otherwise, download and install the JDK from http://www.oracle.com/technetwork/java/javase/

downloads/index-jsp-138363.html.

Step 2: Set environment variables for Java

export JAVA_HOME=/usr/local/java-current

export PATH=$PATH:$JAVA_HOME/bin/

Step 3: Verify install

Close and re-open the Terminal window, and type:

$java –version

Sample results

java version "11.0.3" 2019-04-16 LTS

Java(TM) SE Runtime Environment 18.9 (build 11.0.3+12-LTS)

Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.3+12-LTS, mixed mode)

Step 4: Install Scala and SBT

To install, you must have an installation manager such as Homebrew (available at homebrew.sh).

From a Terminal window, type:

$ brew install scala

$ brew install sbt

Step 5: Add Scala to environment variables

To set up your environment variables on a Mac, you need to add these commands to your .bash_

profile file, which is located in your home directory. (Note: make sure that you don’t have hidden

files selected.)

export SCALA_HOME=/usr/local/share/scala

export PATH=$PATH:$SCALA_HOME/bin

Close and re-open the Terminal window, and type the following to verify the install: scala -version