GNU/Linux Installing Java OpenJDK JDK Guide
You are Welcome! The linked Tutorials Show you Step-by-Step How to Install Oracle-Sun OpenJDK Java Development Kit on GNU/Linux Distributions.
And the OpenJDK (Open Java Development Kit) is a Free and Open Source implementation of the Java Platform, Standard Edition (Java SE).
Finally, the Official Oracle Java JDK Release is based on the OpenJDK source code. In Addition, it contains Closed-Source Components.