This post demonstrates how to install Scala in Ubuntu 14.04 LTS.
JDK is required
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Before you can compile and run a Scala program, you need to have a JDK installed in your system. For instance, I am using OpenJDK 1.7.0_95 in Ubuntu.
Download Scala
Next, download Scala from http://www.scala-lang.org/download
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Extract compressed file
As of this writing, the latest release is 2.11.7 and can be downloaded as scala-2.11.7.tgz. The archived file contains the following directories.
The goodies are in the bin directory.
Take note of calac and scala. These are tools for compiling and running Scala applications, respectively.
Compiling a Scala program
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Running a Scala program
