How to run and compile servlets using tomcat4.0.3

Hello
I have simple servlet "HelloWorld".I have doubts in compiling and running this servlet.I'm using server Tomcat 4.0.3 as and JDK1.3.
1)where do i need to save this servlet?
2)how to compile this servlet by setting a classpath?
3)how do i run this after compilation?
4)do i need any HTML page to run on browser?.if, so how do i have a reference of servlet in HTML page?
HERE IS THE SIMPLE SERVLET
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<body>");
out.println("<head>");
out.println("<title>Hello World!</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Hello World!</h1>");
out.println("</body>");
out.println("</html>");
Thanx for help

put your helloworld servlet inside of webapps/example/WEB-INF/classes...
and then start your tomcat..and type
http://localhost:8080/webapps/servlet/HelloWorld
S

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