How To Install libqdox2-java on Ubuntu 18.04

In this tutorial we learn how to install libqdox2-java on Ubuntu 18.04. libqdox2-java is quickly parses declarations and Javadoc from Java source

Introduction

In this tutorial we learn how to install libqdox2-java on Ubuntu 18.04.

What is libqdox2-java

libqdox2-java is:

QDox quickly parses Java source files looking for key items of interest:

  • class and interface definitions
  • member declarations
  • import statements
  • JavaDoc comments

QDox ignores all other components of Java source, such as actual method implementations, to avoid overhead. QDox returns a simple document model containing only the declarations and containing enough information to be useful.

This is version 2 of QDox which is backwards incompatible with earlier versions.

There are three methods to install libqdox2-java 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 libqdox2-java Using apt-get

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

sudo apt-get update

After updating apt database, We can install libqdox2-java using apt-get by running the following command:

sudo apt-get -y install libqdox2-java

Install libqdox2-java Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libqdox2-java using apt by running the following command:

sudo apt -y install libqdox2-java

Install libqdox2-java 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 libqdox2-java using aptitude by running the following command:

sudo aptitude -y install libqdox2-java

How To Uninstall libqdox2-java on Ubuntu 18.04

To uninstall only the libqdox2-java package we can use the following command:

sudo apt-get remove libqdox2-java

Uninstall libqdox2-java And Its Dependencies

To uninstall libqdox2-java and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libqdox2-java

Remove libqdox2-java Configurations and Data

To remove libqdox2-java configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libqdox2-java

Remove libqdox2-java configuration, data, and all of its dependencies

We can use the following command to remove libqdox2-java configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libqdox2-java

References

Summary

In this tutorial we learn how to install libqdox2-java package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.