How to Install OpenJDK 13 on Ubuntu Gnu/Linux Distro
GNU/Linux Ubuntu Install Java OpenJDK 13 – QuickStart Guide
Hi! The Tutorial shows you Step-by-Step How to Install Oracle-Sun OpenJDK 13 JRE/JDK on Ubuntu GNU+Linux Desktop/Server.
And Java OpenJDK 13 for Ubuntu (Open Java Development Kit) is a Free and Open Source Implementation of the Java Platform, Standard Edition (Java SE).
Moreover, the Oracle Java JDK/JRE is based on the OpenJDK Source Code. In Addition, it contains Closed-Source Components.