___        ______     ____ _                 _  ___  
    / \ \      / / ___|   / ___| | ___  _   _  __| |/ _ \ 
   / _ \ \ /\ / /\___ \  | |   | |/ _ \| | | |/ _` | (_) |
  / ___ \ V  V /  ___) | | |___| | (_) | |_| | (_| |\__, |
 /_/   \_\_/\_/  |____/   \____|_|\___/ \__,_|\__,_|  /_/ 

---

Working on Go, Scala and Prolog development

Go - cloud9 has built in Go compiler go run hello_world.go

Prolog sudo yum install gprolog

gplc FILE
./FILE

Scala - need to install Scala compiler and jdk 1.8

Adapted from https://community.c9.io/t/creating-a-scala-app/1605

sudo yum remove java-1.7.0-openjdk
sudo yum install java-1.8.0-openjdk
wget https://downloads.lightbend.com/scala/2.12.4/scala-2.12.4.tgz
tar xvf scala-2.12.4.tgz
mv scala-2.12.4 ../scala-2.12.4
nano ../.bash_profile
    Append to end of file:
        SCALA_HOME="$HOME/scala-2.12.4"
        PATH="$PATH:$SCALA_HOME/bin"
    
Save and open new terminal, scalac then scala to compile and run