This Article Presents Links to Apache Tomcat 7 Java Server Detailed Installation Easy Visual-Guides for Ubuntu GNU/Linux Distribution.
To Make the Entire Easy to Understand and Visualize the Posts Includes the Basic Screenshots of All GUI Steps involved.
The content of the Guides give Focus only to the Essentials Instructions and Commands for an easier understanding. ;)

- Howto Install Apache Tomcat 7 on Ubuntu 17.04 Zesty
How to Install Latest Netbeans IDE Complete for Java, JEE, C++, PHP on Ubuntu:
Install Netbeans Complete IDE for Ubuntu