Debian Buster 10 OpenJDK 10 Installation Guide
Hi! This tutorial will guide you step-by-step on How to Install Java OpenJDK 10 JDK/JRE Debian Buster 10.x Desktop.
And the Debian Buster 10 OpenJDK 10 Installation (Open Java Development Kit) is a Free and Open Source Implementation of the Java Platform, Standard Edition (Java SE).
Moreover, Oracle Java JDK/JRE Installation is based on the OpenJDK source code. In Addition, it contains Closed-Source Components.

How to Download and Install Oracle JDK on Debian Buster 10
First, Open a Shell Terminal emulator window
(Press “Enter” to Execute Commands)In case first see: Terminal QuickStart Guide.