
The first thing you should always do is update your system. This is the OpenJDK package which is an open source implementation of Java.
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By installing the JDK (Java Development Kit), you’ll also install the JRE (Java Runtime Environment).
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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


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.
