In this tutorial, we will show you how to install Java on Ubuntu. 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 Ubuntu system
Install Java on Ubuntu
Step 1. First, make sure that all your system packages are up-to-date by running these following apt commands in the terminal.
sudo apt update sudo apt upgrade
Step 2. Installing Java on Ubuntu.
Second step, install java run time using following command:
apt-get install default-jre
Third step, install java development kit
apt-get install default-jdk
Then, type below to confirm the Java version:
java --version
Result:
java version "1.7.0_55" OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1) OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode)
Congratulations! You have successfully installed Java. Thanks for using this tutorial for installing Oracle Java (JRE or JDK) on 20.04 Focal Fossa system. For additional help or useful information, we recommend you to check the official Java website.