Install Java8 and Scala in Ubuntu

1. Install Java

sudo apt-add-repository ppa:webupd8team/java
sudo apt-get update 

 sudo apt-get install oracle-java8-installer

export JAVA_HOME=/usr/lib/jvm/java-8-oracle

2. Install Scala and Sbt

sudo apt-get remove scala-library scala
sudo wget www.scala-lang.org/files/archive/scala-2.10.4.deb
sudo dpkg -i scala-2.10.4.deb
sudo apt-get update
sudo apt-get install scala
wget http://scalasbt.artifactoryonline.com/scalasbt/sbt-native-packages/org/scala-sbt/sbt/0.12.4/sbt.deb
sudo dpkg -i sbt.deb
sudo apt-get update
sudo apt-get install sbt

3. Run a scala program with external config file

$ nohup java -Dconfig.file=application.conf  -classpath scala-program.jar com.alvin.ServiceBootStrap