I’ll briefly make the case for migrating your code base to Java 11, then guide you through the steps to install Oracle JDK 11 using the Ubuntu command line.

How to install Java The first thing we must do is install Java, specifically OpenJDK 11. To do that, log in to your Ubuntu instance and issue the command: sudo apt-get install openjdk-11-jdk -y ...

This post explains how to install Java or check which version is running on your machine. Install on any OS, and learn about the JDK.

Canonical has announced that OpenJDK 11 has become the default Java package on Ubuntu 18.04 LTS, replacing OpenJDK 10. The move comes days after Red Hat announced its stewardship of OpenJDK 11.