How To Install Oracle Java on Ubuntu 17.04

In this tutorial, we will show you how to install Oracle Java on your Ubuntu 17.04 server. 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 require Java to run it, but usually, Java is 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 the step-by-step installation of JRE (Java Runtime Environment) and JDK (Java Development Kit) on Ubuntu 17.04 Zesty.

Prerequisites

• A server running one of the following operating systems: Ubuntu 17.04.
• It’s recommended that you use a fresh OS install to prevent any potential issues.
• SSH access to the server (or just open Terminal if you’re on a desktop).
• A non-root sudo user or access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Install Oracle Java on Ubuntu 17.04 Zesty

Step 1. First, make sure that all your system packages are up-to-date by running the following apt-get commands in the terminal.

sudo apt-get update
sudo apt-get upgrade

Step 2. Installing Oracle Java.

Installing Java in Ubuntu 17.04 is almost similar to installing Java in the previous version of Ubuntu such as Ubuntu 16.04:

apt-get install default-jre
apt-get install default-jdk

Another alternative Java install is with Oracle JRE and JDK. However, we would need to install additional repositories for a proper installation:

add-apt-repository ppa:webupd8team/java
apt-get update
apt-get install java-common oracle-java8-installer

Verify the Installed Java version:

java -version

Result:

java version "1.8.1_74"
Java(TM) SE Runtime Environment (build 1.8.1_74-b02)
Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode)

Step 3. Setup JAVA_HOME on Ubuntu 17.04.

Since many programs nowadays need a JAVA_HOME environment variable to work properly. We will need to find the appropriate path to make these changes. With the following command, you can view your installs and their path:

sudo update-alternatives --config java
sudo nano /etc/profile

Now that you are in the user profile file, add the following code, along with the Path of your installation from the previous step, to the bottom. ( Example: JAVA_HOME=”YOUR_PATH”):

export JAVA_HOME="/usr/lib/jvm/java-1.8.0-openjdk-1.8.1.51-1.b16.el7_1.x86_64"

Reload the file so all your changes could take effect with the following command:

source /etc/profile

Verify that your implementations are correct with the following command:

echo $JAVA_HOME

Congratulations! You have successfully installed Java. Thanks for using this tutorial for installing Oracle Java (JRE or JDK) on Ubuntu 17.04 Zesty system. For additional help or useful information, we recommend you check the official Java website.

Save