This post explains how to install Java or check which version is running on your machine. Install on any OS, and learn about the JDK.

Jack Wallen walks you through the process of deploying the open-source GlassFish Java Application server on the latest release of Ubuntu Server.

If Java is not recognized as internal or external command, you need to make sure that the installation is not problematic and its path is recognized as system variables.

Need to serve your java apps from a user-friend web app? Look no further than Tomcat. Find out how to install Tomcat on Ubuntu Linux.