In this tutorial, we will show you how to install Java JDK 9 on Ubuntu 15.04. For those of you who didn’t know, Java is a programming language and computing platform. It was first released by Sun Microsystems in 1995. Many programs and scripts that require Java to run it, but usually Java are not installed by default on a VPS or Dedicated Server.
This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘
sudo‘ to the commands to get root privileges. I will show you through the step by step installation Java on a Ubuntu 15.04.
Install Java JDK 9 on Ubuntu 15.04
Step 1. Remove the OpenJDK from the system, if you have it already installed.
sudo apt-get remove --purge openjdk*
Step 2. Add the webupd8team Java PPA repository in your system.
ssudo add-apt-repository ppa:webupd8team/java
Step 3. Install Java JDK 9.
After added the PPA, run the commands below one by one to install Java:
sudo apt-get update sudo apt-get install oracle-java9-installer
Once the script successfully installs Java 9 on your system, you may run command to set ava 9 environment variables:
sudo apt-get install oracle-java9-set-default
Step 4. Verify Installed Java Version.
Run the following command to verify version your Java:
java version "1.9.0-ea" Java(TM) SE Runtime Environment (build 1.9.0-ea-b50) Java HotSpot(TM) 64-Bit Server VM (build 1.9.0-ea-b50, mixed mode)
Congratulations! You have successfully installed Java. Thanks for using this tutorial for installing Oracle Java (JDK) 9 on Ubuntu 15.04 system. For additional help or useful information, we recommend you to check the official Java website.