/*File Servlet01.java, Copyright 1999, R.G.Baldwin
  
 Rev 1/2/99
 The purpose of this program is to illustrate a very 
 simple servlet.
  
 The servlet produces the following text in the browser 
 window in large red letters.
  
 Hello Big Red World
 *********************************************/
 import java.io.*;
 import javax.servlet.*;
 import javax.servlet.http.*;
  
 public class Servlet01 extends HttpServlet{
   public void doGet(HttpServletRequest req, 
                     HttpServletResponse res)
                       throws ServletException, IOException{
  
     //Establish the type of output
     res.setContentType("text/html");
     
     //Get an output stream
     PrintWriter out = res.getWriter();
     
     //Construct an HTML page to return to the client
     out.println("<HTML>");
     out.println(
         "<HEAD><TITLE=Servlet01</TITLE></HEAD>");
     out.println("<BODY>");
     
     out.println("<h1 align=\"center\">"
                +"<font color=\"#FF0000\">");
     out.println("Hello Big Red World");
     out.println("</font></h1>");
  
     out.println("</BODY></HTML>");
   }//end doGet()
 }//end class Servlet01


Figure 7