cannot find symbol error

[Red Rose]

package com.lara;
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.*;

public class HelloServlet extends HttpServlet
{
  public void service(HttpServletRequest req, 

HttpServletResponse res) throws ServletException, IOException 
{
     
  String s1=req.getParameter("username");
  PrintWriter out=res.getWriter();
  out.println(s1);
  out.close();
}
} 

Dear Team

While compiling above program it shows error like cannot find symbol for HttpServlet, HttpServletRequest, HttpServletResponse. kindly help me to compile

[Louis Bros]

Have you included the 'servlet-api.jar' on your class path?

[Red Rose]

yes i had

[Bear Bibeault]

You say that the servlet API has been added to the class path, but if it had been, you would not be getting these errors.

Moved to the Beginning Java section where compiling from the command line is discussed.

[Ishitha Dyanil]

Hi,
I'am also getting same problem,even though compiling in the same folder.
Can any one tell me the reason.