Ubuntu Install Java 1.8: A Step-by-Step Guide

Installing Java on your Ubuntu system is a straightforward process, and in this tutorial, we will show you how to do it. We will cover the installation of OpenJDK, which is the default Java implementation available on Ubuntu.

Update Package Index

Before installing any packages, make sure that your package index is updated. This ensures that you have access to the latest versions of all packages. Run the following command to update the package index:

```

sudo apt update

```

Install Default OpenJDK

Once the package index is updated, install the default Java OpenJDK package with:

```

sudo apt install default-jdk

```

At the time of writing, the latest LTS version of Java is version 11. If you want to install a specific version of Java, such as Java 1.8, you can do so by specifying the version number in the `apt` command.

Choosing the Right Java Implementation

If you don't know which Java implementation or version to use, the general recommendation is to stick with the default OpenJDK version available on Ubuntu 18.04. OpenJDK and Oracle Java are the two main implementations of Java, with almost no differences between them except that Oracle Java has a few additional commercial features.

Java Editions

Java is distributed in three different editions: Standard Edition (SE), Enterprise Edition (EE), and Micro Edition (ME). This tutorial covers the installation of the Java SE edition.

Prerequisites

Before continuing with this tutorial, make sure you are logged in as a user with sudo privileges. The same instructions apply for Ubuntu 16.04 and any Ubuntu-based distribution, including Kubuntu, Linux Mint, and Elementary OS.

In conclusion, installing Java on your Ubuntu system is a simple process that can be completed with just a few commands. By following the steps outlined in this tutorial, you should be able to install OpenJDK or Oracle Java on your Ubuntu 18.04 system.

Ubuntu install java 1.8