How To Install openjdk-8-demo on Ubuntu 18.04

In this tutorial we learn how to install openjdk-8-demo on Ubuntu 18.04. openjdk-8-demo is Java runtime based on OpenJDK (demos and examples)

Introduction

In this tutorial we learn how to install openjdk-8-demo on Ubuntu 18.04.

What is openjdk-8-demo

openjdk-8-demo is:

OpenJDK Java runtime

The packages are built using the IcedTea build support and patches from the IcedTea project.

There are three methods to install openjdk-8-demo on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install openjdk-8-demo Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install openjdk-8-demo using apt-get by running the following command:

sudo apt-get -y install openjdk-8-demo

Install openjdk-8-demo Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install openjdk-8-demo using apt by running the following command:

sudo apt -y install openjdk-8-demo

Install openjdk-8-demo Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install openjdk-8-demo using aptitude by running the following command:

sudo aptitude -y install openjdk-8-demo

How To Uninstall openjdk-8-demo on Ubuntu 18.04

To uninstall only the openjdk-8-demo package we can use the following command:

sudo apt-get remove openjdk-8-demo

Uninstall openjdk-8-demo And Its Dependencies

To uninstall openjdk-8-demo and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove openjdk-8-demo

Remove openjdk-8-demo Configurations and Data

To remove openjdk-8-demo configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge openjdk-8-demo

Remove openjdk-8-demo configuration, data, and all of its dependencies

We can use the following command to remove openjdk-8-demo configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge openjdk-8-demo

References

Summary

In this tutorial we learn how to install openjdk-8-demo package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.