Installing Oracle Java on Ubuntu and later

14.04 and later

sudo apt-add-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

Set default java version

update-alternatives --config java

18.04 and later

sudo add-apt-repository ppa:linuxuprising/java
sudo apt install oracle-java11-installer-local
sudo apt install oracle-java11-set-default