what are required jars for servlet compilation

[Raja seemakurthi]

hi all,

i need to find out that what are required jars for servlet compilation.
while compiling my servlet class i am getting several errors.
can any one tell me where i was wrong?
and tell me that do i need to set classpath for this? if yes, please tell me how?

    
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
//import javax.servlet.http.HttpServlet;
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpServletResponse;
 

public class GetData extends HttpServlet {
 
 protected void service(HttpServletRequest request,HttpServletResponse response) throws ServletException,java.io.IOException{
String fone=request.getParameter("f1");
String ftwo=request.getParameter("f2");
PrintWriter out=response.getWriter();
out.print(fone+"< and >"+ftwo+" got from user input page");
 
} 
}

and my web.xml file is

    
<web-app>
<servlet>
<servlet-name>getdt</servlet-name>
<servlet-class>GetData</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>getdt</servlet-name>
<url-pattern>/GetData</url-pattern>
</servlet-mapping>
</web-app

[Ben Souther]

See:
http://faq.javaranch.com/java/CompilingServlets