How to Install Java OpenJDK/OracleJDK on AlmaLinux 9 by from on 2023-05-12 13:00 (#6BPE5) Java is a class-based and object-oriented programming language created by Sun Microsystem in 1995. In this guide, I will show you how to Install Java OpenJDK or/and Java Oracle JDK on the AlmaLinux 9 server.