The first thing you should always do is update your system. This is the OpenJDK package which is an open source implementation of Java. By installing the JDK (Java Development Kit), you’ll also install the JRE (Java Runtime Environment). We’ll start with our instructions on how to install the latest recommended version of Java (JDK) using the Ubuntu package. How to install Java (the default JDK) on Ubuntu using apt-get

Installing Java manually using Oracle’s JDK (not recommended for beginners).

Installing Java 11 or Java 13 using Oracle’s JDK with apt-get.

Installing the latest Java using the default (Ubuntu’s) JDK using apt-get (use this if you don’t know what to choose).

We’ll order them based on difficulty (easiest first): There are multiple ways of installing Java If you do, remove it, or if you want to use multiple Java versions/installs, then keep it and configure them later.

Make sure you don’t have Java already installed.

An SSH client like MobaXterm (if you use Windows), or SSH enabled (if you use Ubuntu).

If you’re using a non-root user then you’ll need to append ‘sudo’ to most commands. All commands below are executed by the root user. You can get one from Vultr or any other cloud hosting provider Some things you’ll need before we start installing Java: In a hurry? Click here and follow the instructions.

They should work on both servers and desktops.

This should work for any Ubuntu-based distro, even non-LTS versions like 20.10, but they were tested on Ubuntu 18.04 and Ubuntu 20.04. These instructions will work for Ubuntu 16.04, 18.04, Ubuntu 20.04, and any other LTS release, or even other Ubuntu-based distros like Xubuntu. It’s a pretty straightforward and easy process, and we’ll show you step-by-step instructions on how to install Java on Ubuntu.

Install jdk ubuntu