Server-Side Java with Jakarta-Tomcat

Listing 2. HelloWorld.java: a Simple Applet that Handles the GET

Request Method
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet {
 public void doGet(HttpServletRequest request,
     HttpServletResponse response)
     throws IOException, ServletException
  {
     // Set the MIME content type for the response
     response.setContentType("text/html");
     // Get the output stream to STDOUT
     PrintWriter out = response.getWriter();
     // Print some HTML
     out.println("<HTML>");
     out.println("<Head><Title>Hello,
      <@cont_arrow><\#229><@$p>world</Title></Head>");
     out.println("<Body>");
     out.println("<P>Hello, world</P>");
     // Get the user's first name, if he or
     she passed it to us
     String firstname = request.getParameter("firstname");
     // Print a special greeting for people who
     give us their name if (firstname != null)
       {
           out.println("<P>Your first name is \""
            <@cont_arrow><\#229><@$p>+ firstname + "\"</P>");
        }
     // Finish the HTML
     out.println("</Body></HTML>");
  }
}