How to initialize

I am working on this JSP page (modifying from Servlet), and I need to initialize "item".
item is located where it indicates
CatalogItem item;
I believe I need to indicate this public class called "Catalog" (on the bottom).
How do I go about doing this?
Thank you for your feedback.
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import="coreservlets.*"%>
<%@page import="java.io.*" %>
<%@page import="javax.servlet.*" %>
<%@page import="javax.servlet.http.*" %>
/// Private Methods
<%!
    private CatalogItem[] items;
    private String[] itemIDs;
    private String title;
%>
<%
    if (items == null) {
      response.sendError(response.SC_NOT_FOUND,
                         "Missing Items.");
      return;
    response.setContentType("text/html");
    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 ALIGN=\"CENTER\">" + title + "</H1>");
    CatalogItem item;
    for(int i=0; i<items.length; i++)
      out.println("<HR>");
      item = items;
if (item == null) {
out.println("<FONT COLOR=\"RED\">" +
"Unknown item ID " + itemIDs[i] +
"</FONT>");
} else
out.println();
String formURL =
"/mseku9_proj/Cart.jsp";
formURL = response.encodeURL(formURL);
out.println
("<FORM ACTION=\"" + formURL + "\">\n" +
"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID\" " +
" VALUE=\"" + item.getItemID() + "\">\n" +
"<H2>" + item.getShortDescription() +
" ($" + item.getCost() + ")</H2>\n" +
item.getLongDescription() + "\n" +
"<P>\n<CENTER>\n" +
"<INPUT TYPE=\"SUBMIT\" " +
"VALUE=\"Add to Shopping Cart\">\n" +
"</CENTER>\n<P>\n</FORM>");
%>
public class Catalog {
// This would come from a database in real life.
// We use a static table for ease of testing and deployment.
// See JDBC chapters for info on using databases in
// servlets and JSP pages.
private static CatalogItem[] items =
{ new CatalogItem
("hall001",
"<I>Core Servlets and JavaServer Pages " +
"2nd Edition</I> (Volume 1)" +
" by Marty Hall and Larry Brown",
"The definitive reference on servlets " +
"and JSP from Prentice Hall and \n" +
"Sun Microsystems Press.<P>Nominated for " +
"the Nobel Prize in Literature.",
39.95),};
public static CatalogItem getItem(String itemID) {
CatalogItem item;
if (itemID == null) {
return(null);
for(int i=0; i<items.length; i++) {
item = items;
if (itemID.equals(item.getItemID())) {
return(item);
return(null);
}>

There is also this class (I believe it does all the functions)..
How do I incorporate all together to initialize "item" at the JSP?
Thanks.
public class CatalogItem {
private String itemID;
private String shortDescription;
private String longDescription;
private double cost;
public CatalogItem(String itemID, String shortDescription,
                     String longDescription, double cost) {
    setItemID(itemID);
    setShortDescription(shortDescription);
    setLongDescription(longDescription);
    setCost(cost);
public String getItemID() {
    return(itemID);
protected void setItemID(String itemID) {
    this.itemID = itemID;
public String getShortDescription() {
    return(shortDescription);
protected void setShortDescription(String shortDescription) {
    this.shortDescription = shortDescription;
public String getLongDescription() {
    return(longDescription);
protected void setLongDescription(String longDescription) {
    this.longDescription = longDescription;
public double getCost() {
    return(cost);
protected void setCost(double cost) {
    this.cost = cost;
}

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