Making changes to an exisiting Web App

Question

I am just getting started to learn about Web Apps and deploying them to Tomcat. So I started with a sample web app project - made up of struts, hibernate, etc., etc.

I am using Eclipse for Java EE Developers on my Ubuntu system.

The ANT build was successful. Also, was able to deploy the web app through an xml under Catalina/host. I am able to open the web site with no issues.

This is the structure of my web app

-exploded

     -WEB-INF

          -classes

          -lib

          -web.xml

          -struts-config.xml

    -index.jsp

    -welcome.html

My question is

I now want to add a few more HTML, CSS, JavaScript files and generate a new ANT build and then deploy to tomcat.

To start with, let's say I am adding just ONE NEW HTML file to the Web App.

Which are the files that need to be edited to include this NEW HTML FILE.