Ubuntu Install Oracle Java

Install Java 11

apt-get install software-properties-common
add-apt-repository ppa:linuxuprising/java
apt-get update
apt-get install oracle-java11-set-default

Install Java 8

apt-get install software-properties-common
add-apt-repository ppa:webupd8team/java
apt-get update
apt-get install oracle-java8-installer