How to uninstall openjdk-8-demo from Ubuntu

Uninstall openjdk-8-demo

To uninstall just openjdk-8-demo package itself from Ubuntu execute on terminal:

sudo apt-get remove openjdk-8-demo

Uninstall openjdk-8-demo and it's dependent packages

To uninstall the openjdk-8-demo package and any other dependant package which are no longer needed on Ubuntu.

sudo apt-get autoremove openjdk-8-demo

Purging openjdk-8-demo

If you also want to delete configuration and/or data files of openjdk-8-demo from Ubuntu then this will work:

sudo apt-get purge openjdk-8-demo

To delete configuration and/or data files of openjdk-8-demo and it's dependencies from Ubuntu then execute:

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

openjdk-8-demo package information

name openjdk-8-demo
section java
description

Java runtime based on OpenJDK (demos and examples)

website openjdk.java.net/ 
maintainer openjdk@lists.launchpad.net

More information about apt-get remove

Advanced Package Tool, or APT, is a free software user interface that works with core libraries to handle the installation and removal of software on Debian, Ubuntu and other Linux distributions. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software packages, either from precompiled files or by compiling source code.

apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT library.

apt-get remove is identical to install except that packages are removed instead of installed. Note that removing a package leaves its configuration files on the system. If a plus sign is appended to the package name (with no intervening space), the identified package will be installed instead of removed.

See Also

How to install openjdk-8-demo package on Ubuntu