Beginner's Servlet Help Needed

Question

I just copied a HelloWorld.java from an example online
HelloWorld.java:2: package javax.servlet does not exist
import javax.servlet.*;
^
HelloWorld.java:3: package javax.servlet.http does not exist
import javax.servlet.http.*;
I have Tomcat on my machine and confirgured, but can't find these jar files which contain these classes. I have a book which generally says that they are usually in the lib directory and called servlet.jar and jsp.jar, but I cant' find those. So I just set my CLASSPATH to my Tomcat directory and then lib/*.jar, server/lib/*.jar, common/lib/*.jar and it still does not work.
I'm new and confused.
Where are these javax.servlet packages?
I've also looked in the regular java directory (Java sdk 1.4.1_05)
Can someone please tell me where I am suppose to go look for this?

Answer 1

Thanks!
I didn't look in common! What was this "common/lib/*.jar ", then? :o)