package hall; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.net.*; /** Dynamically-generated variation of the * SearchEngines.html front end that uses cookies * to remember a user's preferences. *

* Part of tutorial on servlets and JSP that appears at * http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/ * 1999 Marty Hall; may be freely used or adapted. */ public class SearchEnginesFrontEnd extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Cookie[] cookies = request.getCookies(); String searchString = ServletUtilities.getCookieValue(cookies, "searchString", "Java Programming"); String numResults = ServletUtilities.getCookieValue(cookies, "numResults", "10"); String searchEngine = ServletUtilities.getCookieValue(cookies, "searchEngine", "google"); response.setContentType("text/html"); PrintWriter out = response.getWriter(); String title = "Searching the Web"; out.println(ServletUtilities.headWithTitle(title) + "\n" + "

Searching the Web

\n" + "\n" + "\n" + "\n" + "\n" + "\n"); } private String checked(String name1, String name2) { if (name1.equals(name2)) return(" CHECKED"); else return(""); } }