Adding classes in the web developed using NetBean IDE

Hello

I am using NetBean IDE. Using this i want to develop Web application using JSp and servlet.

When i use simple servlet and JSp page it work ok. But when i want to use Java class and put the classes in the class folder of Web-INF folder, even though i am not able to access these classes in my JSp page.

Please help me.
thank you

crazybird_2005