The Java Technology is both a programming language and a platform [1]. The java platform is one on top of which java programs run and it can be described as a software-only platform that runs on top of other hardware based platforms. The Java platform consists of these two major components [2]. The Java Virtual Machine The Java Application Programming Interface (API) The importance of installing java on your local machine is due to the reason that many web and desktop applications may be partially or fully dependent on the java run-time. Therefore it is essential to install a version of java into your local machine. This tutorial guides you through a simple mechanism to install java on the Ubuntu platform. 1. First open up a terminal in your Ubuntu environment 2. Update the existing packaging index by entering the following command in the terminal $ sudo apt-get update 3. Check if java is ava