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thanks in advance
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- import java.io.*;
- import javax.servlet.*;
- import javax.servlet.http.*;
- import java.util.*;
- @SuppressWarnings("unchecked")
- public class ShowItems extends HttpServlet {
- public void doGet(HttpServletRequest request,
- HttpServletResponse response)
- throws ServletException, IOException {
- HttpSession session = request.getSession();
- ArrayList<String> previousItems =
- (ArrayList<String>)session.getAttribute("previousItems");
- if (previousItems == null) {
- previousItems = new ArrayList<String>();
- session.setAttribute("previousItems", previousItems);
- }
- String newItem = request.getParameter("newItem");
- if ((newItem != null) &&
- (!newItem.trim().equals(""))) {
- previousItems.add(newItem);
- }
- response.setContentType("text/html");
- PrintWriter out = response.getWriter();
- String title = "Items Purchased";
- String docType =
- "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
- "Transitional//EN\">\n";
- out.println(docType +
- "<HTML>\n" +
- "<HEAD><TITLE>" + title + "</TITLE></HEAD>\n" +
- "<BODY BGCOLOR=\"#FDF5E6\">\n" +
- "<H1>" + title + "</H1>");
- if (previousItems.size() == 0) {
- out.println("<I>No items</I>");
- } else {
- out.println("<UL>");
- for(String item: previousItems) {
- out.println(" <LI>" + item);
- }
- out.println("</UL>");
- }
- out.println("</BODY></HTML>");
- }
- }
