Automatically install Oracle Java on Ubuntu

install-java

# make sure 'add-apt-repository' is installed
sudo apt-get install -y software-properties-common

# accept the Oracle license agreement
echo debconf shared/accepted-oracle-license-v1-1 \
  select true | sudo debconf-set-selections
echo debconf shared/accepted-oracle-license-v1-1 \
  seen true | sudo debconf-set-selections
  
# add the PPA for Oracle Java 
# (see https://launchpad.net/~webupd8team/+archive/ubuntu/java)
sudo add-apt-repository -y ppa:webupd8team/java
sudo apt-get update

# install Java
sudo apt-get install -y oracle-java8-installer