How To Install Oracle Java 8 and OpenJDK 11 on Ubuntu 18.04, 18.10

This tutorial is going to show you how to install Oracle Java 8 and OpenJDK 11 on Ubuntu 18.04/Ubuntu 18.10. Java 11 has been released on September 25, 2018 and it’s the first long term support (LTS) release since Oracle changed release schedule.

Java Release Model

Previously, Oracle releases a new major version of Java every two years, a minor version every 6 months. (It took 3 years to release Java 9, because of Jigsaw.) Some people, often company management, like this model because it makes production stable. Other people, often developers, think this is too slow. They like innovations.

After Java 9, Oracle releases a new major version of Java every 6 months to make developers happy. Every 3 years, there will be a LTS release (Long Time Support), which is supported for 8 years, to appease company management.

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