How To Install libfreemarker-java-doc on Ubuntu 18.04

In this tutorial we learn how to install libfreemarker-java-doc on Ubuntu 18.04. libfreemarker-java-doc is template engine written in Java (documentation)

Introduction

In this tutorial we learn how to install libfreemarker-java-doc on Ubuntu 18.04.

What is libfreemarker-java-doc

libfreemarker-java-doc is:

FreeMarker is a “template engine”; a generic tool to generate text output (anything from HTML to autogenerated source code) based on templates. It’s a Java package, a class library for Java programmers. It’s not an application for end-users in itself, but something that programmers can embed into their products.

FreeMarker is designed to be practical for the generation of HTML Web pages, particularly by servlet-based applications following the MVC (Model View Controller) pattern. The idea behind using the MVC pattern for dynamic Web pages is that you separate the designers (HTML authors) from the programmers. Everybody works on what they are good at. Designers can change the appearance of a page without programmers having to change or recompile code, because the application logic (Java programs) and page design (FreeMarker templates) are separated. Templates do not become polluted with complex program fragments. This separation is useful even for projects where the programmer and the HMTL page author is the same person, since it helps to keep the application clear and easily maintainable.

This package contains the documentation of libfreemarker-java.

There are three methods to install libfreemarker-java-doc 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 libfreemarker-java-doc Using apt-get

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

sudo apt-get update

After updating apt database, We can install libfreemarker-java-doc using apt-get by running the following command:

sudo apt-get -y install libfreemarker-java-doc

Install libfreemarker-java-doc Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libfreemarker-java-doc using apt by running the following command:

sudo apt -y install libfreemarker-java-doc

Install libfreemarker-java-doc 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 libfreemarker-java-doc using aptitude by running the following command:

sudo aptitude -y install libfreemarker-java-doc

How To Uninstall libfreemarker-java-doc on Ubuntu 18.04

To uninstall only the libfreemarker-java-doc package we can use the following command:

sudo apt-get remove libfreemarker-java-doc

Uninstall libfreemarker-java-doc And Its Dependencies

To uninstall libfreemarker-java-doc and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libfreemarker-java-doc

Remove libfreemarker-java-doc Configurations and Data

To remove libfreemarker-java-doc configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libfreemarker-java-doc

Remove libfreemarker-java-doc configuration, data, and all of its dependencies

We can use the following command to remove libfreemarker-java-doc configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libfreemarker-java-doc

References

Summary

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