The steps in this section will install the Java 11 JDK on Ubuntu.
Install software-properties-common
to easily add new repositories:
sudo apt-get install software-properties-common
Add the Java PPA:
sudo add-apt-repository ppa:linuxuprising/java
Update the source list:
sudo apt-get update
sudo apt install oracle-java11-set-default
Install the Java JDK 11:
sudo apt-get install oracle-java11-installer-local