====== Installing Oracle Java on Ubuntu and later ======
<code bash 14.04 and later>
sudo apt-add-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
</code>
Set default java version
<code>update-alternatives --config java</code>

<code bash 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
</code>