Install OpenJDK 11 Ubuntu 18.04 Bionic
How to Install OpenJDK in Ubuntu 18.04 Bionic LTS GNU/Linux – Step by step Tutorial.
And the Ubuntu Bionic OpenJDK 11 Installation is a Free and Open Source Implementation of the Java Platform Standard Edition.
Moreover, Oracle Java JDK/JRE Installation is based on the OpenJDK source code. In Addition, it contains Closed-Source Components.
Finally, OpenJDK 11 is the second Java Long Term Support Release.

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1. Accessing Shell
Open a Shell session
Ctrl+Alt+t on desktop
(Press “Enter” to Execute Commands)
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