A puzzling situation...help needed urgently!

This is somewhat related to the topic I posted here (the app is the same) : http://forum.java.sun.com/thread.jspa?threadID=5253292
So I managed to set things straight and pass the value of the floor selected from the drop down list to a page called FloorPlanRender.jsp (the parameter name is "floorselected", and I store this parameter into an integer variable of the same name as shown in the code for the whole page below). A controller class receives the request, initializes the DB connection and redirects to the appropriate JSP page (not shown in the codes below, but it works fine) -
[BTW, I have posted the entire code for the page and classes involved...that was just to make the code more informative. The problem seems to be in a very small part of the code alone].
<%@page language="java" contentType="text/html"%>
<%@page import="java.util.Iterator"%>
<%@page import="java.util.ArrayList"%>
<%@page import="seatplanner.beans.FloorPlanRenderElement"%>
<% String base = (String)application.getAttribute("base"); %>
<% String imageURL = (String)application.getAttribute("imageURL"); %>
<jsp:useBean id="dataManager" scope="application"
class="seatplanner.model.DataManager"/>
<!DOCTYPE html
     PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>Tech Mahindra SeatMaster® | Floor Plan</title>
<link rel="stylesheet" href="/TechMSeatPlan/css/pagestyle.css" type="text/css"/>
</head>
<body>
<div id="all">

<div id="toppanel"> <jsp:include page="TopPanel.jsp"/> </div>
<br/> <br/>

<div id="contentpanel">

<% String floorselect = request.getParameter("floorselected");
   int floorselected = Integer.parseInt(floorselect);
   int rowcount = dataManager.getRowCount(floorselected);
   int columncount = dataManager.getColumnCount(floorselected);
   ArrayList<FloorPlanRenderElement> floorplanelements = dataManager.getFloorPlanElements(floorselected);
   Iterator<FloorPlanRenderElement> iterator = floorplanelements.iterator(); %>

<% if(!(floorplanelements.isEmpty())) // Checks whether the retrieved ArrayList is empty or not
FloorPlanRenderElement anelement = new FloorPlanRenderElement();%>
<table id="floorplan">
<% while(iterator.hasNext())
     for(int i=1; i==rowcount; i++)
          { %>
               <tr>
               <% for(int j=1; j==columncount; j++)
                    anelement = iterator.next(); // Store the elements one by one
               %>
               <td width=30px height=30px> <img src="<%=imageURL + anelement.floorelement.getElementType() + "-" + anelement.floorelement.getOccupied()%>"/> </td>
                <% } //close for...j loop %>
                </tr>
      <% } //close for...i loop %>
<% } //close while... loop %>
</table>
<% } //close if, start else
else { %>
No floor plan exists. Please choose another floor.
<% } //close else %>
</div>
</div>
</body>
</html>
                    Now, using this value for floor selected, I have to get the rows and columns configured for this floor from a database. This involves performing a select max statement so that I can get the maximum row and column number respectively. So I call upon the relevant methods in the DataManager class by creating an object, which in turn gets forwarded to a class known as FloorPlanRenderPeer.java [The code for both are shown below]:
DataManager.java
package seatplanner.model;
import java.util.Hashtable;
import java.util.ArrayList;
import java.util.Enumeration;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import seatplanner.beans.FloorPlanRenderElement;
public class DataManager {
private String dbURL = "";
private String dbUserName = "";
private String dbPassword = "";
/*Basic and connectivity operations */
public void setDbURL(String dbURL) {
    this.dbURL = dbURL;
public String getDbURL() {
    return dbURL;
public void setDbUserName(String dbUserName) {
    this.dbUserName = dbUserName;
public String getDbUserName() {
    return dbUserName;
public void setDbPassword(String dbPassword) {
    this.dbPassword = dbPassword;
public String getDbPassword() {
    return dbPassword;
public Connection getConnection() {
    Connection conn = null;
    try {
      conn = DriverManager.getConnection(getDbURL(), getDbUserName(),
          getDbPassword());
    catch (SQLException e) {
      System.out.println("Could not connect to DB: " + e.getMessage());
    return conn;
public void putConnection(Connection conn) {
    if (conn != null) {
      try { conn.close(); }
      catch (SQLException e) { }
     /* Floor related operations */
     public ArrayList<Integer> getAllFloorNumbers() {
          return FloorPeer.getAllFloorNumbers(this);
     /* Floor Plan Rendering related operations */
     public int getRowCount(int floorselected) {
          return (FloorPlanRenderPeer.getRowCount(this, floorselected));
     public int getColumnCount(int floorselected) {
          return (FloorPlanRenderPeer.getColumnCount(this, floorselected));
     public ArrayList<FloorPlanRenderElement> getFloorPlanElements(int floorselected) {
          return FloorPlanRenderPeer.getFloorPlanElements(this, floorselected);
FloorPlanRenderPeer.java
package seatplanner.model;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import seatplanner.beans.FloorPlanRenderElement;
/* This class handles all floor plan rendering operations */
public class FloorPlanRenderPeer
/* This method returns the number of rows configured for the floor */
public static int getRowCount(DataManager dataManager, int floorselected) {
     int rowcount=0;
    Connection connection = dataManager.getConnection();
    if (connection != null) {
      try {
          Statement s = connection.createStatement();
          try
        String sql = "select max(grid_x_pos) from seatplanner.floorgridpart where floor_id =" + floorselected;
        ResultSet rs = s.executeQuery(sql);
          try {
              rowcount = rs.getInt(1);
          finally { rs.close(); }
        finally {s.close(); }
      catch (SQLException e) {
        System.out.println("Could not get row count: " + e.getMessage());
      finally {
        dataManager.putConnection(connection);
    return (rowcount);
/* This method returns the number of columns configured for the floor */
public static int getColumnCount(DataManager dataManager, int floorselected) {
     int columncount=0;
    Connection connection = dataManager.getConnection();
    if (connection != null) {
      try {
        Statement s = connection.createStatement();
           try {
        String sql = "select max(grid_y_pos) from seatplanner.floorgridpart where floor_id =" + floorselected;
          ResultSet rs = s.executeQuery(sql);
          try {
              columncount = rs.getInt(1);
                    } finally { rs.close(); }
           } finally {s.close(); }
      catch (SQLException e) {
        System.out.println("Could not get column count: " + e.getMessage());
      finally {
        dataManager.putConnection(connection);
    return columncount;
/* This method returns all the grid elements needed to render the floor plan for the selected floor */
public static ArrayList<FloorPlanRenderElement> getFloorPlanElements(DataManager dataManager, int floorselected) {
    ArrayList<FloorPlanRenderElement> floorplanrenderelements = new ArrayList<FloorPlanRenderElement>();
     FloorPlanRenderElement oneelement = new FloorPlanRenderElement();
    Connection connection = dataManager.getConnection();
    if (connection != null) {
      try {
        Statement s = connection.createStatement();
        String sql = "select distinct A.grid_x_pos, A.grid_y_pos, A.element_ID, B.element_type, B.occupied" +
                          "from seatplanner.floorgridpart A, seatplanner.floorelement B where (A.floor_ID = " + floorselected +
                          "and A.element_ID = B.ID) order by A.grid_x_pos, A.grid_y_pos asc";
        try {
          ResultSet rs = s.executeQuery(sql);
          try {
            while (rs.next()) {
              oneelement.floorgridpart.setGridXPos(rs.getInt(1));
                 oneelement.floorgridpart.setGridYPos(rs.getInt(2));
                 oneelement.floorgridpart.setElementID(rs.getString(3));
                 oneelement.floorelement.setID(rs.getString(3));
                 oneelement.floorelement.setElementType(rs.getString(4));
                 oneelement.floorelement.setOccupied(rs.getString(5));
                 floorplanrenderelements.add(oneelement);
          finally { rs.close(); }
        finally {s.close(); }
      catch (SQLException e) {
        System.out.println("Could not get floor numbers: " + e.getMessage());
      finally {
        dataManager.putConnection(connection);
    return floorplanrenderelements;
}When I run the application and choose my floor, the result throws me a "No floor plan exists...." [the else...part in the jsp page].
I have come to know that it is because for some odd reason, the rowcount and columncount variables are not being set properly. I have tested the queries used in the FloorPlanRender peer class in the mySQL query browser and they work (both the row and column count for floor 3 for example, should return 20). But they don't. When I printed out the rowcount and columncount variables, they were set to a 0. I thought the floorselected parameter wasn't retrieved from the previous page properly, but to my surprise it was successfully set to 3, indicating the desired floor number.
I can't begin to see where the error is. There is nothing wrong with the DB connection or the query, but the correct value is not being set to the variables in the jsp page.
Can someone please have a look at the code and guide me as to what possibly is going wrong? I have spent a lot of time and effort and still haven't spotted the mistake, if any. Your help is much appreciated.

Again wrong usage of Iterator :)
<%@page language="java" contentType="text/html"%>
<%@page import="java.util.Iterator"%>
<%@page import="java.util.ArrayList"%>
<%@page import="seatplanner.beans.FloorPlanRenderElement"%>
<% String base = (String)application.getAttribute("base"); %>
<% String imageURL = (String)application.getAttribute("imageURL"); %>
<jsp:useBean id="dataManager" scope="application"
class="seatplanner.model.DataManager"/>
<!DOCTYPE html
     PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>Tech Mahindra SeatMaster® | Floor Plan</title>
<link rel="stylesheet" href="/TechMSeatPlan/css/pagestyle.css" type="text/css"/>
</head>
<body>
<div id="all">

<div id="toppanel"> <jsp:include page="TopPanel.jsp"/> </div>
<br/> <br/>

<div id="contentpanel">

<% String floorselect = request.getParameter("floorselected");
   int floorselected = Integer.parseInt(floorselect);
   int rowcount = dataManager.getRowCount(floorselected);
   int columncount = dataManager.getColumnCount(floorselected);
   ArrayList<FloorPlanRenderElement> floorplanelements = dataManager.getFloorPlanElements(floorselected);
   Iterator<FloorPlanRenderElement> iterator = floorplanelements.iterator(); %>

<% if(!(floorplanelements.isEmpty())) // Checks whether the retrieved ArrayList is empty or not
FloorPlanRenderElement anelement = new FloorPlanRenderElement();%>
<table id="floorplan">
<% while(iterator.hasNext()){
anelement = iterator.next(); // The iterator.next() every call would takes the pointer to the next element in the collection
for(int i=1; i==rowcount; i++){ %>
<tr>
<% for(int j=1; j==columncount; j++){%>
<td width=30px height=30px> <img src="<%=imageURL + anelement.floorelement.getElementType() + "-" + anelement.floorelement.getOccupied()%>"/> </td>
<% } //close for...j loop %>
</tr>
<% } //close for...i loop %>
<% } //close while... loop %>
</table>
<% } //close if, start else
else { %>
No floor plan exists. Please choose another floor.
<% } //close else %>
</div>
</div>
</body>
</html>For god sake please bother to understand how any implementation of java.util.Iterator works
for more info go through javadocs
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Iterator.html
and i believe you have completey ignored my other suggestion of using enhanced loop in J2SE 5.0+ if iterator is confusing.
Anyways,hope the above might help you in fixing of what you are trying to..
REGARDS,
RaHuL

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Product name: String
UPC: String
Cost: real
Quantity: integer
Output Reports
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************************ Product Cost REPORT ****************************
Product                    Cost Quantity Extended Cost     GST     Total Cost
Diamond Necklace 12345678901x 54,321.99 188 10,212,534.12 510,626.71 10,723,160.83
Tissues 98989898989x 1.99 2 3.98      0.20     4.18
TOTALS                         10,212,538.10 510,626.91 10,723,165.01
2. Display of all invalid records and the count.
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Invalid UPC Records = 1
Count Record
1          Tiara Diamond, 12345678901x, 36020.00, 2
3. Search and display a certain product by name. Display appropriate message if not found.
Following is a sample of the output required:
Enter product name: CrownJewels
CrownJewels 99999999991x     100,000.00 1 100,000.00 5,000.00 $105,000.00
6. Display the product information sorted by name
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************************ Product Cost REPORT ****************************
Product                    Cost Quantity Extended Cost     GST     Total Cost
CrownJewels 99999999991x 100,000.00 1 100,000.00 5,000.00 $105,000.00
Diamond Necklace 12345678901x 54,321.99 188 10,212,534.12 510,626.71 $10,723,160.83
Pearls      88888888881x 10,000.00 1 10,000.00 500.00 $10,500.00
RubyRing      77777777771x 10,000.00 1 10,000.00 500.00 $10,500.00
Tissues      98989898989x 1.99 2 3.98 0.20     $4.18
TOTALS          (complete these values)           xxx           xxx      xxx
Java coding requirements for this assignment
Main methods required
1.     Load array with all records. Display exception messages only for records that have invalid data in any of the fields. Return array of valid records and logical size.
2.     Validate the UPC. Display each report when requested from the menu.
3.     Justify the data in the columns. Right justify numeric fields; left justify the alpha fields.
4.     A method for each report required in the menu.
Class methods
5.     Use the object method for the extended cost.
6.     Use the object method for the GST.
You may use additional methods in the main program but do not add any methods in the class definition.
Use DecimalFormat for rounding.
Create an array to hold the objects. Assume that we only need to process a file of a maximum of 500 records but the file may be larger than 500 records.
A Universal Product Code consists of 12 digits. The first digit (from the left) is the UPC type. The next five digits are the Manufacturer code. The next five digits are the product code which is assigned by the manufacturer. The final digit is the check digit. A person can determine the check digit of a Universal Product Code by doing the following:
Step 1: Sum all of the digits in the odd positions together.
0+4+0+1+5+9 = 19
Step 2: Multiply the sum from Step 1 by 3.
3 * 19 = 57
Step 3: Sum all of the digits in the even positions together.
6+2+0+1+8 = 17
Step 4: Sum together the results from Step 2 and Step 3.
17 + 57 = 74
Step 5: Subtract the sum from the next highest multiple of 10.
80 - 74 = 6 [check digit]
TEST DATA:
Step 1: Create 5 or MORE additional records that will test all conditions. Include these in your documentation. Identify what field is tested in your test data. (Example: error in each field of the record, rounding up, rounding down, valid UPC, invalid UPC, formatting of report, file too large
Step 2: Use the file attached.
GODDDDDDDDDDDDDD lol pasting it made me go crazy,
these are my codes so far, HOwever the problem is ONLY DISPLAY MENU SHOWS, nothing else even though i have enough codes that it can show something,
My codes are as follows:
I am working on Eclipse.
import java.util.Arrays;
import java.util.Scanner;
import java.io.*;
import java.util.*;
import java.io.IOException;
* Name : Sana Ghani
* Date : July 10
public class lab56
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     public static Scanner searchInput = new Scanner(System.in);
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               try
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               catch (IOException e)
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               break;
          case 2:
               break;
          case 3:
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               break;
          case 4:
               break;
          case 5:
               break;
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     public static void display(Product1[]validProduct, int logicalSize)throws Exception
          String Product, UPC;
          double Cost;
          int Quantity;
          for(int index =0; index<logicalSize; index++)
               Product = validProduct[index].GetName();
               UPC = validProduct[index].GetUPC();
               Cost=validProduct[index].GetCost();
               Quantity=validProduct[index].GetQuantity();
               System.out.println(Product+"\t\t"+UPC+"\t\t"+Cost+"\t\t"+Quantity);
     public static String getFileName()
          String fileName;
          Scanner input = new Scanner(System.in);
          System.out.print("Please enter a file name: ");
          fileName = input.next();
          return fileName;
     public static int displayMenu()
          int menuChoice;
          boolean validFlag = false;
          do
               System.out.println("\n\n*************************************");
               System.out.println(" Product Display Menu ");
               System.out.println("*************************************");
               System.out.println("(1)Display All Records");
               System.out.println("(2)Display All Invalid Records");
               System.out.println("(3)Search by Product Name");
               System.out.println("(4)Sort by Product Name");
               System.out.println("(5)Exit");
               System.out.println("*************************************");
               System.out.print("Enter your choice(1-5): ");
               menuChoice = input.nextInt();
               if ((menuChoice >= 1) && (menuChoice <= 5))
                    validFlag = true;
               if (!validFlag)
                    System.out.println("You have chosen " + menuChoice + ", " + menuChoice +
                    " is not valid. Please try again");
          }while(!validFlag);
          return menuChoice;
     public static String loadArray(Product1 [] ValidProduct, String fileName)throws Exception
          int logicalSize=0;//will always have to declare
          String record;//will always have to declare
          String Product, UPC;//variable names from
          double Quantity;
          double Cost;
          Scanner file = new Scanner(new File(fileName));//open
          record = file.nextLine();//read a line
          record = file.nextLine();//read a line
          for(int index = 0; index < ValidProduct.length && file.hasNext(); index++)//check to see if the file has data
               record = file.nextLine();
               parse = new Scanner(record).useDelimiter(",");
               String Name = parse.next();
               UPC = parse.next();
               Cost = parse.nextDouble();
               Quantity=parse.nextDouble();
               ValidProduct[index] = new Product1 ( Name, UPC, Cost, (int) Quantity);
//               create the object-- call the constructor and pass info
               logicalSize++;
          return logicalSize+".txt";
     public static double roundDouble(double value, int position)
          java.math.BigDecimal bd = new java.math.BigDecimal(value);
          bd = bd.setScale(position,java.math.BigDecimal.ROUND_UP);
          return bd.doubleValue();
     * This method will print report about valid records
     public static void displayAllRecords( Product1[]valid, int ValidProduct,
               Product1[] invalid, int InvalidProduct)
//          Print valid records
          displayAllValidRecords(valid, ValidProduct);
//          Print invalid UPC records
          displayAllValidRecords(invalid, InvalidProduct);
     public static void displayOneRecord(Product1[]valid, int index)
          double extendedCost, GST, SumofGST = 0, // Total Extended Cost
          totalCost, SumOfTotalCost = 0; // Total Extended Cost + GST
//          Print title
          System.out.println(leftJustify("Product", 50) +
                    leftJustify("UPC", 15) +
                    rightJustify("Cost", 10) +
                    rightJustify("Quantity", 5) +
                    rightJustify("Extended Cost", 15) +
                    rightJustify("GST", 5) +
                    rightJustify("Total Cost", 13));
          extendedCost = valid[index].CalculateExtendedCost();
          extendedCost = roundDouble(extendedCost, 2);
          GST = valid[index].CalculateGST();
          GST = roundDouble(GST, 2);
          totalCost = extendedCost + GST;
          totalCost = roundDouble(totalCost, 2);
//          justify method ensures all values are of the same size
          System.out.println(//leftJustify(i+"",3) + ": " +
                    leftJustify(valid[index].GetName(), 50) +
                    leftJustify(valid[index].GetUPC(), 15) +
                    rightJustify(valid[index].GetCost()+"", 10) +
                    rightJustify(valid[index].GetQuantity()+"", 5) +
                    rightJustify(extendedCost+"", 10) +
                    rightJustify(GST+"", 10) +
                    rightJustify(totalCost+"", 10));
     * This method will print report about valid records
     public static void displayAllValidRecords( Product1[]valid, int validCounter)
          double extendedCost, sumOfExtendedCost = 0, // Total Extended Cost
          GST, sumOfGST = 0, // Total GST
          totalCost, sumOfTotalCost = 0; // Total Extended Cost + GST
          System.out.println("************************ XYZ Product " +
                    "Cost REPORT ****************************" +
//          Print title
          System.out.println(leftJustify("Product", 50) +
                    leftJustify("UPC", 15) +
                    rightJustify("Cost", 10) +
                    rightJustify("Qty", 5) +
                    rightJustify("Extended Cost", 15) +
                    rightJustify("GST", 5) +
                    rightJustify("Total Cost", 13));
//          Print Records
          for(int i=0; i<validCounter; i++)
               extendedCost = valid.CalculateExtendedCost();
               extendedCost = roundDouble(extendedCost, 2);
               GST = valid[i].CalculateGST();
               GST = roundDouble(GST, 2);
               totalCost = extendedCost + GST;
               totalCost = roundDouble(totalCost, 2);
//               justify method ensures all values are of the same size
               System.out.println(//leftJustify(i+"",3) + ": " +
                         leftJustify(valid[i].GetName(), 50) +
                         leftJustify(valid[i].GetUPC(), 15) +
                         rightJustify(valid[i].getClass()+"", 10) +
                         rightJustify(valid[i].GetQuantity()+"", 5) +
                         rightJustify(extendedCost+"", 10) +
                         rightJustify(GST+"", 10) +
                         rightJustify(totalCost+"", 10));
               sumOfExtendedCost += extendedCost;
               sumOfGST += GST;
               sumOfTotalCost += totalCost;
     private static void sortByName(Product1 [] ValidProduct, int logicalSize) throws Exception
          Product1 temp;
          for (int outer = logicalSize-1; outer > 1; outer --)
               for (int inner = 0; inner < outer; inner ++)
                    if (ValidProduct[inner].GetName().compareToIgnoreCase(ValidProduct[inner+1].GetName())>0)
                         temp = ValidProduct[inner];
                         ValidProduct[inner] = ValidProduct[inner + 1];
                         ValidProduct [+ 1] = temp;
     public static void binarySearchByName(Product1 [] ValidProduct, int logicalSize)
          int high = logicalSize - 1;
          int low = 0;
          int mid = 0;
          int count = 0;
          int compare = 0;
          boolean found = false;
          System.out.print("Enter a product name");
          String product = input.nextLine();
          while (high >= low && !found)
               count += 1;
               mid = (high + low) / 2;
               compare = ValidProduct[mid].GetName().compareToIgnoreCase(product);
               if (compare == 0)
                    System.out.println("Found: " + ValidProduct[mid].GetName());
                    found = true;
               else if (compare < 0)
                    low = mid + 1;
               else
                    high = mid - 1;
          if (!found)
               System.out.println(product + " not found.");
          System.out.println(count + " steps");
          System.out.println();
     public static String leftJustify(String field, int width)
          StringBuffer buffer = new StringBuffer(field);
          while (buffer.length() < width)
               buffer.append(' ');
          return buffer.toString();
     public static String rightJustify(String field, int width)
          StringBuffer buffer = new StringBuffer(field);
          while (buffer.length() < width)
               buffer.append(' ');
          return buffer.toString();
     public static void displayValidRecords(Product1 [] ValidProduct, int logicalSize) throws Exception {
          long longMAX_POSSIBLE_UPC_CODE = 999999999999L;
          // set input stream and get number
          Scanner stdin = new Scanner(System.in);
          System.out.print("Enter a 12-digit UPC number: ");
          long input =stdin.nextLong();
          long number = input;
          // determine whether number is a possible UPC code
          if ((input < 0)|| (input > longMAX_POSSIBLE_UPC_CODE)) {
               // not a UPC code
               System.out.println(input +"is an invalid UPC code");
          else {
               // might be a UPC code
               // determine digits
               int d12 = (int) (number % 10);
               number /= 10;
               int d11 = (int) (number % 10);
               number /= 10;
               int d10 = (int) (number % 10);
               number /= 10;
               int d9 = (int) (number % 10);
               number /= 10;
               int d8 = (int) (number % 10);
               number /= 10;
               int d7 = (int) (number % 10);
               number /= 10;
               int d6 = (int) (number % 10);
               number /= 10;
               int d5 = (int) (number % 10);
               number /= 10;
               int d4 = (int) (number % 10);
               number /= 10;
               int d3 = (int) (number % 10);
               number /= 10;
               int d2 = (int) (number % 10);
               number /= 10;
               int d1 = (int) (number % 10);
               number /= 10;
               // compute sums of first 5 even digits and the odd digits
               int m = d2 + d4 d6 d8 + d10;
               int n = d1 + d3 d5 d7 + d9 + d11;
               // use UPC formula to determine required value for d12
               int r = 10 - ((m +3*n) % 10);
               // based on r, can test whether number is a UPC code
               if (r == d12) {
                    // is a UPCcode
                    System.out.println(input+" is a valid UPC code");
               else {
                    // not a UPCcode
                    System.out.println(input+" is not valid UPC code");
Any help would be great thanks !!
Take care,

1) It's your problem that you waited until the last minute before you went for help...not ours. We'll give your problem the same attention as anyone elses...therefore your problem isn't any more urgent than any other problem here.
2) I don't intend on doing your entire assignment. Nor do I intend on reading all of it. If you need help with a specific requirement, then post the information/code relevant to that requirement. I don't know how to help you when you bury the problem inside a 9 mile long essay.
3) Post code in tags so it's formatted and readable. (there's a *code* button up above that makes the tags for you).

Need to reinstall Acrobat XI - cloud says it's installed - help needed urgently!

i am using osx / adobe creative cloud.
needed to deinstall acrobat XI. did it with app cleaner by mistake.
now acc tells me it is installed and i can not reinstall it again.
help urgently needed!
PROBLEM SOLVED
go to applications/utilities/adobe installers/acrobat XI deinstall (in my case)

Hi rbt_11,
Please go to
Applications --> Utilities --> Adobe Installers and check if you have any uninstaller for Acrobat XI.
Incase if you find the uninstaller then run that and uninstall the remnants of this software.
Thanks
Kapil

Help neede urgently(Problem in adding exponential numbers)

Hi,
Actually i want to add the contents of two files which contains exponential numbers.
i'm not able to add these numbers. Can any one help me?
import java.io.*;
import java.nio.*;
class userFile
     public static void main(String[] args) throws IOException
          try
               BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
          String s1,s2,s3;
          FileReader fr1,fr2;
          System.out.println("Enter first file :");
          s1=br.readLine();
          System.out.println("Enter second file :");
          s2=br.readLine();
          System.out.println("Enter new file :");
          s3=br.readLine();
          fr1= new FileReader(s1);
          fr2= new FileReader(s2);
          BufferedReader fin1=new BufferedReader(fr1);
          BufferedReader fin2=new BufferedReader(fr2);
          String str1,str2,str3;
          double i1,i2,i3;
          OutputStream fout=new FileOutputStream(s3);
          while((str1=fin1.readLine()) != null)
               while((str2=fin2.readLine()) != null)
               i1=Float.parseFloat(str1);
               System.out.println(i1);
               i2=Float.parseFloat(str2);
               System.out.println(i2);
               i3=i1+i2;
               System.out.println("i3=" +i3);
               str3 = Float.toString(i3);
               byte buf[]=str3.getBytes();
               fout.write(buf);
               fout.write('\n');
          catch(NumberFormatException e)
               System.out.println(e);
}I need help urgently.
Thanks in advance.

By "exponential number, do you mean one in scientific notation (eg. -1.55743e21) or what?
What do your files look like?
What problem are you encountering? Is an exception being thrown? If so, give us the exact message (copy/paste). Is the results simply not what was expected? If so, give us the input, the expected results and the actual results for us to compare and consider.
Chuck

GA Help Needed Urgently

Hi,
I'm stuck on how exactly to define the selectParent() method (the Selection method) because I have to take out samples of size 5 (the tournament size) from the population and then order those chromosomes ( in the contenders ArrayList) in order of fitness (the lower the fitness the better). But since I'm working with ArrayLists and since I have to extract each Chromosome object from the contender Arraylist, somehow call the fitness() method on each Chromosome, and then sort in order of fitness (lowest first), then store the 2 Chromosomes with the lowest fitness into a parent ArrayList, I'm lost with how to do this. Any ideas on this please? What's the simplest way of doing it?
Here's the code I have done - the commented stuff is the stuff I have tried to code to do the sorting, but it's all useless now. I am almost in a giving up situation here - Can anyone come up with a solution for how the tournament selection sort would be done in order for my code to run - or some sort of sorting algorithm to order the fitness from lowest to highest as this is the part I am find most trouble with - the thing I don't understand is that because the fitness value of each Chromosome is not stored anywhere (like a variable or ArrayList), how am I able to order the fitnesses from every sample of 5? PLEASE HELP URGENTLY :-(
import java.util.ArrayList;
import java.util.Random;
import java.util.Collections;
import java.math.*;
import java.util.Collection;
class Population {
Database d = new Database();
Random rand = new Random();
ArrayList population = new ArrayList();
ArrayList parents = new ArrayList();
ArrayList contenders = new ArrayList();
public void initialPopulation() {
    double[] reuters = {
        8.0, 9.0, 12.5, 11.5, 6, 7, 4, 2, 3, 4, 3, 5, 5.5};
    Share s1 = new Share(reuters);
    d.addShare(s1);
    for (int i = 0; i < 10; i++) {
      Chromosome c = new Chromosome(rand);
      c.setDatabase(d);
      population.add(c);
      System.out.println("Chromosome Weights are: " + c);
      System.out.println("Chromosome Fitness Value is: " + c.fitness(0));
      System.out.println();
    System.out.println(population.size());
    System.out.println(population.toString());
    System.out.println();
//     System.out.println(d);
public ArrayList selectParents(int tournamentSize) {
    // Get as many chromosomes as specified by tournament size
    for (int i = 0; i < tournamentSize; i++) {
      contenders.add(i, population.get(i));
    // Sort the sub-population in order of fitness *****Having Huge Problems Here***
/* double[] fitnessVals = new double[5];
    double[] temp = new double[5];
    ArrayList tempArrayList = new ArrayList();
    for (int i = 0; i < (contenders.size()); i++) {
      Chromosome temp1 = (Chromosome)contenders.get(i);
      fitnessVals[i] = temp1.fitness(0); }
System.out.println((fitnessVals[0]) +","+ (fitnessVals[1]));
   for (int i = 0; i < (contenders.size()); i++) {
    if (fitnessVals[i] > fitnessVals[i+1])
      temp[i] = fitnessVals[i + 1];
      fitnessVals[i + 1] = fitnessVals;
fitnessVals[i] = temp[i];
tempArrayList.add(contenders.get(i + 1));
contenders.set(i+1, contenders.get(i));
contenders.set(i, tempArrayList.get(i));
else {}
// Collections.max((Collection)contenders.get(0));
// System.out.println(contenders.toString());
/* public void sortInOrderOfFitness(Comparable ArrayList ) {
for (int i = 0; i < contenders.size(); i++) {
Collections.sort(contenders);
System.out.println(contenders); ****Up to Here is Where I'm Lost***
// Return the best two
parents.add(contenders.get(0));
parents.add(contenders.get(1));
System.out.println(parents.toString());
System.out.println(contenders.toString());
return parents;
public static void main(String args[]) {
Population p = new Population();
p.initialPopulation();
p.selectParents(5);
import java.util.ArrayList;
import java.util.Random;
class Chromosome
{ int[] bit = new int[12];
Database db;
Chromosome(Random rand)
{ for (int i = 0; i < 12; i++)
{ bit[i] = rand.nextInt(6); }
public String toString()
{ String res = "";
for (int i = 0; i < 12; i++)
{ res = res + bit[i] + ","; }
return res;
public void setDatabase(Database d)
{ db = d; }
public double fitness(int share)
{ double prediction = 0;
int divisor = 0;
Share sh = db.getShare(share);
for (int i = 0; i < 12; i++)
{ prediction = prediction + bit[i]*sh.getPrice(i);
divisor = divisor + bit[i];
if (divisor != 0)
{ prediction = prediction/divisor; }
else
{ prediction = 0; }
System.out.println("Prediction Value is: " + prediction);
double actualPrice = sh.getPrice(12);
return Math.abs(prediction - actualPrice);
import java.util.ArrayList;
import java.util.Random;
class Database
{ ArrayList sharedata = new ArrayList();
public void addShare(Share s)
{ sharedata.add(s); }
public Share getShare(int i)
{ return (Share) sharedata.get(i); }
class Share
{ double[] prices = new double[13];
Share(double[] p)
{ prices = p; }
double getPrice(int i)
{ return prices[i]; }

No you're not I'm still hereI was making a point that it's rude to flag your
questions as urgent. As you can see, a lot of the
people who answer questions tend to ignore such
posts.
I didn't realise this until now since you've pointed it out - I saw other posts with 'urgent' and felt mine really was urgent which is why I did this.
>
, any ideas??Yes, throw that commented method away and read up on
how to use Java's collections API to properly sort a
list/collection of objects:
http://java.sun.com/docs/books/tutorial/collections/in
terfaces/order.html
Good luck.I'm going to have a good look at this now. Hopefully I'll be able to get somewhere.

Help needed urgently to get the values from the jsp page.

hi,
I am badly stuck into this problem.Please help me and find a solution.
I am using ms-access and jsp.
my database structure is as given below:
m_emp_no | from_date | to_date | approver| status |
1002 | 22/9/2008 | 23/9/2008|1003 |pending
1004 | 29/9/2008 | 30/9/2008|1003 |pending
2044 | 15/9/2008 | 16/9/2008|3076 |pending
now this is exactly a leave apply scenario where a page is displayed and the user has to fill in the details to apply leave.then the approver has to approve that leaves so even, he should get the details in his account.
for example here 1003 has to approve leaves for 1002 & 1004.i am able to fetch data from database for the particular approver here is the coding:
<html>
<body>
<h2 align="center"><u><b><span style="background-color: #FFFFFF"><font color="#C0C0C0" face="Comic Sans MS">Leave
Approval Requests</font></span></b></u></h2>
<form method="POST" name="f1" action="update.jsp">
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:employee_details");
PreparedStatement p=null;
p=con.prepareStatement("select * from emp_leave_application where approver='"+username+"'");
ResultSet r=p.executeQuery();
while(r.next())
%> <table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
    <tr>
      <td width="100%" bgcolor="#999966"><b><u><%=r.getString(2)%></u></b></td>
    </tr>
</table>
<table border="1" width="100%" height="171" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
    <tr>
      <td width="100%" height="165" valign="top">
        <p align="left"><b>User ID</b>        :
<input type="text" name="id" value="<%=r.getString(1)%>" size="4
     <b>status</b>:<%=r.getString(5)%</p>
<p><b>Leave From</b> : <%=r.getString(2)%></p>
<p><b>Leave From</b> : <%=r.getString(3)%></p>
<p><b>Approve</b> : <select size="1" name="approved">
        <option value="Approved">Approved</option>
        <option value="Cancelled">Cancelled</option>        </select></p>
<%
con.close();
%>
<table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
          <tr>
            <td width="100%" bgcolor="#999966">
              <p align="center"><input type="reset" value="Clear" name="B1">
              <input type="submit" value="Submit" name="B2"></td>
          </tr>
        </table>
        </td>
    </tr>
</table>
</form>
</body>
</html>{code}
this will display both the rows but when i try to retrieve the values into update.jsp using the code given below it gives me only one value which is the first 1002.
{code}approved=(String)request.getParameter("approved");
id=(String)request.getParameter("id");{code}
but i need both the values to be inserted into the update.jsp only then the approver will be able to approve the leaves individually with respect to the m_emp_no.
please help me out.
thanks in advance.

My comments below are all between (((((( and ))))))
<html>
<body>
<h2 align="center"><u><b><span style="background-color: #FFFFFF"><font color="#C0C0C0" face="Comic Sans MS">Leave
Approval Requests</font></span></b></u></h2>
<form method="POST" name="f1" action="update.jsp">
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:employee_details");
PreparedStatement p=null;
p=con.prepareStatement("select * from emp_leave_application where approver='"+username+"'");
ResultSet r=p.executeQuery();
while(r.next())
%> <table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966"><b><u><%=r.getString(2)%></u></b></td>
</tr>
</table>
<table border="1" width="100%" height="171" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" height="165" valign="top">
<p align="left"><b>User ID</b> :
<input type="text" name="id" value="<%=r.getString(1)%>" size="4
((((((( in the statement above, name="id" should be changed to something like name="id"<%=ii%>
Where ii is a counter that tells you how many times you have gone through the loop so far.
The reason for this is that each textfield you generate must have a unique name rather than all have the same name
such as 'id'. This change will give them names such as id0, id1, id2. Then when you submit the page, you can uniquely
identify each input textfield.))))))
<b>status</b>:<%=r.getString(5)%</p>
<p><b>Leave From</b> : <%=r.getString(2)%></p>
<p><b>Leave From</b> : <%=r.getString(3)%></p>
<p><b>Approve</b> : <select size="1" name="approved">
(((( the above select also has to have a unique name for each time through the loop. Change it to name="approved"<%=ii%>
<option value="Approved">Approved</option>
<option value="Cancelled">Cancelled</option> </select></p>
<%
con.close();
%>
<table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966">
<p align="center"><input type="reset" value="Clear" name="B1">
<input type="submit" value="Submit" name="B2"></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
(((((((note you would be better off long term to put your business logic in a servlet and dispatch to the JSP page which will only have the responsiblity to display the data.
Also, connection pooling is better than the above.

XML Generation using a sql query in an efficient way -Help needed urgently

Hi
I am facing the following issue while generating xml using an sql query. I get the below given table using a query.
     CODE      ID      MARK
==================================
1 4 2331 809
2 4 1772 802
3 4 2331 845
4 5 2331 804
5 5 2331 800
6 5 2210 801
I need to generate the below given xml using a query
<data>
<CODE>4</CODE>
<IDS>
<ID>2331</ID>
<ID>1772</ID>
</IDS>
<MARKS>
<MARK>809</MARK>
<MARK>802</MARK>
<MARK>845</MARK>
</MARKS>
</data>
<data>
<CODE>5</CODE>
<IDS>
<ID>2331</ID>
<ID>2210</ID>
</IDS>
<MARKS>
<MARK>804</MARK>
<MARK>800</MARK>
<MARK>801</MARK>
</MARKS>
</data>
Can anyone help me with some idea to generate the above given CLOB message

not sure if this is the right way to do it but
/* Formatted on 10/12/2011 12:52:28 PM (QP5 v5.149.1003.31008) */
WITH data AS (SELECT 4 code, 2331 id, 809 mark FROM DUAL
              UNION
              SELECT 4, 1772, 802 FROM DUAL
              UNION
              SELECT 4, 2331, 845 FROM DUAL
              UNION
              SELECT 5, 2331, 804 FROM DUAL
              UNION
              SELECT 5, 2331, 800 FROM DUAL
              UNION
              SELECT 5, 2210, 801 FROM DUAL)
SELECT TO_CLOB (
             '<DATA>'
          || listagg (xml, '</DATA><DATA>') WITHIN GROUP (ORDER BY xml)
          || '</DATA>')
          xml
FROM ( SELECT    '<CODE>'
                 || code
                 || '</CODE><IDS><ID>'
                 || LISTAGG (id, '</ID><ID>') WITHIN GROUP (ORDER BY id)
                 || '</ID><IDS><MARKS><MARK>'
                 || LISTAGG (mark, '</MARK><MARK>') WITHIN GROUP (ORDER BY id)
                 || '</MARK></MARKS>'
                    xml
            FROM data
        GROUP BY code)

Report for PO help needed (Urgent)

Hi all,
do anyone has code for a report which is used to create Purchase Order for materials which has purchase requisition.
if anyone has the plz share it with me.
bcoz it is urgently needed & it is required to be deliver today.
Regards
sanjeev

Hi
Take the data from <b>EBAN</b> table and try to display the same after fecthing from it.
PO related tables are EKKO and EKPO, EKET,and EKBE.
Reward points if useful
Regards
Anji

A puzzling situation...help needed urgently!

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