How to design a simple menu midlet in j2me?

I'm new to j2me and trying to make a simple menu midlet without using polish (css). Please help... Thank you

You need to use
Class javax.microedition.lcdui.List
Interface javax.microedition.lcdui.CommandListener
Lots of MIDP Technical Articles and Tips at
http://developers.sun.com/mobility/midp/reference/techart/index.html
For future needs, please post on the CLDC and MIDP forum
http://forum.java.sun.com/forum.jspa?forumID=76
db

Similar Messages

How to design a simple game?

my programming skills are pretty much limited and as most beginners i was coding simple things by build and fix method, but wanna try to do it properly so i'm looking for help. i've been trying to design simple Connect4 game and as i'm coding in java i taken oo aproach. i'll explain exactly steps i've taken and i'd really appreciate if someone familiar with oo design and software engineering in all would point out what i'm douing wrong and if theres is anything ok with my approach.
1. i've started with use-case modelling and created first scenario
scenario created:
1. user clicks start button
2. player1 is presented with empty board and asked to insert token in column of his choice
3. player1 clicks on column where he wants to insert token. token drops (appears) in chosen column
4. player2 is asked to insert token into column
5. player2 clicks on column where he wants to insert token
token drops (appears) in chosen column
6. steps 2-5 are repeated
7. player1 connects 4 in a row and information is displayed player1 has won
i know scenarios should include every possible way of utilizing the software but it gives countless possbilities and i was wonder if scenario for every single way of utilizing the product should be created or maybe not? i suppose that number of scenarios depends on how the product is complicated but in case of very simple game like connect4 aproximately how many scenarios would be expected?
2. having above scenario ready i've used noun extraction method to extract candidate classes and so i have:
players inserts tokens into the board consisting of 7 rows and 6 columns. players trying to connect their four tokens in a row (horizontally, vertically or diagonally) to win.
classes extracted:
player
token
board
row
column
assuming that state of token, row, column will not change, i skipped those and left only two classes board and player. after a while i also noticed that another class named connect4 would be needed to put it all together.
3. having one scenario ready and classes extracted i went directly to drawing sequence state diagram which i've put here
4. next i draw detailed class diagram (here) and more or less decided on methods for every class
5. then i started writing pseudocode but while writing i'm finding myself adding additional methods, variables etc and keep changing design while coding, what dosent seem to be a good practice. i was wonder how it works in real life and what is the chance to get application designed correctly for the first time, i mean extract the classes with methods etc.
to be honest i got lost a little cause according to shach's book i missed state diagram and few other things and dont know how important those bit are in real life and designing real software. as i said i'm real beginner in software engineering and any help would be much appreciated. than you very much in advance for any comments regarding my design and help

i know scenarios should include every possible way of
utilizing the software but it gives countless
possbilities and i was wonder if scenario for every
single way of utilizing the product should be created
or maybe not? i suppose that number of scenarios
depends on how the product is complicated but in case
of very simple game like connect4 aproximately how
many scenarios would be expected?Very few. This program is small and the interaction
with the user is minimal.
2. having above scenario ready i've used noun
extraction method to extract candidate classes and so
i have:
player
token
board
row
column
assuming that state of token, row, column will not
change, i skipped those and left only two classes
board and player. after a while i also noticed that
another class named connect4 would be needed to put it
all together.Things like "player" or "person" are rarely if ever real classes.
Imagine you were designing the control program for an
elevator. Just because a person clicks on the button for
a floor doesn't mean you make them a class in your design.
Likewise, just because a player clicks on a column doesn't
mean you make them a class.
In reality, this program is small enough for one major class,
the gameboard itself. You may have an enum for the token
color but that's about it.
What can you do with this gameboard? Not much:
1. Add a token to column X.
2. Check for a win.
3. Obtain a copy of the board.
Your gameboard only has to maintain the state of the
board and allow you to add a token or check for a win.
Your class to display the gameboard and accept user
input will probably be larger than anything else.
You can write this program with only two classes. The
gameboard and the display.
3. having one scenario ready and classes extracted i
went directly to drawing sequence state diagram which
i've put hereOverkill for a program of this size.
4. next i draw detailed class diagram (here) and more
or less decided on methods for every classAlso overkill for a program of this size. Unless this is
an assignment at work or school, all of these documents
are unnecessary and likely to be several times larger than
your entire program.
5. then i started writing pseudocode but while writing
i'm finding myself adding additional methods,
variables etc and keep changing design while coding,
what dosent seem to be a good practice. i was wonder
how it works in real life and what is the chance to
get application designed correctly for the first time,
i mean extract the classes with methods etc.If you find your design doesn't work while writing code
then yes, you should go back and change your design
document. This isn't too big of a sign of disaster unless
you need to step back another step and change the
requirements document. That's usually a sign you
really messed up.
By all means, go back and change the design document
if you need to before you finish coding.
In this case however, its probably overkill.
to be honest i got lost a little cause according to
shach's book i missed state diagram and few other
things and dont know how important those bit are in
real life and designing real software. as i said i'm
real beginner in software engineering and any help
would be much appreciated. than you very much in
advance for any comments regarding my design and helpIts next to impossible to go through a structured design
process on a project this small while working by yourself.
You really need a bigger project with multiple team members
to see how its all supposed to play out.
Projects of this size are written almost as soon as you start
thinking about them and any documentation you generate will
dwarf your source code printout.

How to design a simple quiz...

Hi everybody
Can anybody help me out with constructing a simple quiz within Edge animate, I don't need it to randomize anything, I just want 10 questions that tally up the answers and send the results in a email to the user
Any help would be appreciated
Regards
George

You could for example do it like this:
import java.io.*;
class Quiz
public static void main (String [] args)
BufferedReader in = new BufferedReader (new InputStreamReader(System.in));
System.out.println("SUPERQUIZ");
System.out.println("How many legs does a horse have?");
System.out.println();
System.out.println("1");
System.out.println("2");
System.out.println("3");
System.out.println("4");
int answer = Integer.parseInt(in.readLine());
if (answer == 4)
System.out.println("The answer is correct");
else
System.out.println("The answer is incorrect");
This is just a basic program, hope you understand it (hopefully it works).
�sbj�rn

How to design a simple binary one-shot

I need a simple binary one-shot that when a signal becomes true, a new value goes True for one evaluation and does not get re-triggered until the original signal becomes false and then true again. I have tried many ways and either the wait for the signal to go false again locks up the loop or the trigger remains true and causes the logic to keep on processing.
Solved!
Go to Solution.

Can you post an image of what you have tried, preferably in .png format? Or attach your code attempts, ID'ing what version of LabVIEW.
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion

Quick Question About Simple Menu

Can someone direct me to a link that has a tutorial for a SIMPLE vertical navigation menu with a submenu. Like a drop down menu but vertical where the main links are on the left and the submenues come out the right side of the menu. I dont need any bells and wistles and I am just learning so it doesnt need anything but a button link when rolled over more link options appear to the right. Is there a tutorial that is not a place trying to sell me this capability and actually works (CS3), no errors, broken links etc...just a how to for a SIMPLE menu with submenus.
Sorry, I am getting frustrated...thanks

Okay, just so that it might help someone else who is struggling to find a way to do this, I found a pretty good tutorial on how to make good drop down menus that can easily be made into a vertical pop-out menu as well. I was a bit surprised that there was so little valuable information regarding something that I would think is a pretty common thing, SIMPLE rollovers with submenus. Not only did I have a very difficult time JUST finding a tutorial on basic drop down menus (without all kinds of bells and whistles or people wanting to sell me a package), but there was nobody who could actually point me to the one truly helpful tutorial about the subject out there. So for those who might search I am going to put this link here to the only real thorough tutorial I could find about a simple drop down menu that can work both vertical and horizontal.
It takes awhile because he is also explaining many things most people with basic knowledge about the program probably already knows but its clear and (SHOCK!) actually works well.
http://www.tutvid.com/tutorials/flash/tutorials/as3DropDownMenus.php

How to get the standard Menu of Query Designer into Web Template

Hi Experts,
is there a way on how to put the standard menu within Bex Query Designer (after executing a Query with the Query Designer you get into ad-hoc reporting with a menu including several functions like print, show as..., properties, etc) into an individual Bex Web Template?
Copy & Paste source code will not work I guess because of several javascript functions I don't have access to.
Thanks & Best regards
Tobias

BEx queries are displayed on the web using standard web template 0ANALYSIS_PATTERN or some customized version base don your implementation.
You can either include the 0ANALYSIS_Pattern web template in your custom template or use Save as to create a new template with 0ANALYSIS_Pattern AS THE STARTING POINT.

How can i impement some simple menu bar into this code ?

Hello all.
I have a problem with my program. I wanna add a simple menu bar, but i don't have any idea how to do it.
Here is code of my program:
import java.awt.Menu;
import javax.swing.event.MenuListener;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter.DEFAULT;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class SimpleGraphicEditor {
public Display display;
public Shell shell,shellmenu;
public Canvas canvas;
public Image imageBuffer;
org.eclipse.swt.widgets.Menu menu;
public Menu fileMenu, editMenu, viewMenu;
int startx=0;
int starty=0;
int endx=0;
int endy=0;
     public SimpleGraphicEditor() {
          display = new Display();
          shell = new Shell(display);
          createGUI();
          shell.open();
               while(!shell.isDisposed()) {
               if(!display.readAndDispatch()) {
                    display.sleep();
          } // end of simple grapphic editor
          private void createGUI() {
               shell.setLayout(new FillLayout());
               canvas = new Canvas(shell, SWT.BORDER);
               menu = null;
               shell.setText("Simple rec draw");
               shell.setSize(500, 500);
               shell.setMenuBar(menu);
               canvas.addPaintListener(new PaintListener() {
                         public void paintControl(PaintEvent e) {
                         e.gc.drawImage(imageBuffer, 0, 0, 500, 500, 0, 0, 500, 500);
               imageBuffer = new Image(display, 500, 500);
               Listener listener = new Listener() {
                    private boolean isDrawing;
                    private GC gc = new GC(imageBuffer);
                    private int oldX = 0;
                    private int oldY = 0;
                    private int newX = 0;
                    private int newY = 0;
                    private boolean isDeleting;
                    public void handleEvent(Event event) {
                         // System.err.println("type=" + event.type);
                         switch(event.type) {
                         case SWT.MouseDown:
                              // System.err.println("button down");
                              switch(event.button) {
                              case 1:
                                   isDrawing = true;
                                   System.out.println("Start at:("+event.x+","+event.y);
                                   startx=event.x;
                                   starty=event.y;
                                   break;
                              case 2:
                                   System.err.println("button2 down");
                                   break;
                              case 3:
                                   isDeleting = true;
                                   gc.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
                                   break;
                              break;
                         case SWT.MouseUp:
                              // System.err.println("button up");
                              switch(event.button) {
                              case 1:
                                   isDrawing = false;
                                   // --- czyszczenie tablicy ---
                                   System.out.println("End at:("+event.x+","+event.y);
                                   int szerokosc=event.x-startx;
                                   int wysokosc=event.y-starty;
                                   //gc.drawRectangle(startx, starty, szerokosc,wysokosc);
                                   gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
                                   gc.fillRectangle(startx, starty, szerokosc,wysokosc);
                                   canvas.redraw();
                                   break;
                              case 2:
                                   System.err.println("button2 up");
                                   break;
                              case 3:
                                   isDeleting = false;
                                   break;
                              break;
                         case SWT.MouseMove:
                              newX = event.x;
                              newY = event.y;
                              // System.err.println("mouse moved");
                              if(isDrawing) {
                                               // ----------- draw at hold -----------------------------
                                   //gc.drawLine(oldX, oldY, newX, newY);
                                   int szerokosc=event.x-startx;
                                   int wysokosc=event.y-starty;
                                   gc.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
                                   gc.drawText("x:"+event.x+", y:"+event.y+" ", 0, 0);
                                   canvas.redraw();
                                   // ----- Clear the whole area -------------
                                   gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
                                   gc.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
                                   gc.fillRectangle(startx, starty, szerokosc+500, wysokosc+500);
                                   gc.fillRectangle(startx, starty, szerokosc-500, wysokosc-500);
                                   gc.fillRectangle(startx, starty, szerokosc+500, wysokosc-500);
                                   gc.fillRectangle(startx, starty, szerokosc-500, wysokosc+500);
                                   canvas.redraw();
                                   gc.setForeground(display.getSystemColor(SWT.COLOR_DARK_BLUE));
                                   gc.drawRectangle(startx, starty, szerokosc, wysokosc);
                                   canvas.redraw();
                                   int x = (oldX < newX) ? oldX : newX;
                                   int y = (oldY < newY) ? oldY : newY;
                                   int width = (oldX < newX) ? (newX-oldX) : (oldX - newX);
                                   int height = (oldY < newY) ? (newY-oldY) : (oldY - newY);
                                   if(width < 20) width = 20;
                                   if(height < 20) height = 20;
                                   canvas.redraw(x, y, width, height, true);
                              } else if(isDeleting) {
                                   // Color c = gc.getBackground();
                                   // gc.setBackground(gc.getForeground());
                                   gc.fillRectangle(newX - 15, newY - 15, 30, 30);
                                   canvas.redraw(newX - 15, newY - 15, 30, 30, true);
                                   // gc.setBackground(c);
                                   break;
                         } // end switch caly
                         oldX = event.x;
                         oldY = event.y;
               canvas.redraw();
               canvas.addListener(SWT.MouseDown, listener);
               canvas.addListener(SWT.MouseUp, listener);
               canvas.addListener(SWT.MouseMove, listener);
          public static void main(String[] args) {
               new SimpleGraphicEditor();
}

nitroduxe wrote:
ok i add the following code:
menu = new org.eclipse.swt.widgets.Menu(shell, SWT.BAR);
               MenuItem fileItem = new MenuItem(menu, SWT.CASCADE);
              fileItem.setText("menu1");
              MenuItem editItem = new MenuItem(menu, SWT.CASCADE);
              editItem.setText("menu2");
              MenuItem viewItem = new MenuItem(menu, SWT.CASCADE);
              viewItem.setText("menu3");
              shell.setMenuBar(menu); // DODANIE MENUhow now i can add some submenu into menu1 and menu2 and menu3 ?
Edited by: nitroduxe on Mar 9, 2010 10:23 AMI would start by reading the [menu tutorial|http://java.sun.com/docs/books/tutorial/uiswing/components/menu.html].

How can I make a DVD with a VERY simple menu

I want to create a DVD that autostarts with an opening menu containing a title, a picture and a play button - nothing else. The DVD will contain only one video (created in i-Movie). I want to press "Play" from the opening menu and the video will play. I don't seem to be able to create anything less than a 2-level menu.

Hi
From iMovie - do not use Share to iDVD - but - Share to Media Browser and as Large (not HD or other res. as result will lose quality)
In iDVD - I select a very simple Menu - Old themes -> Brushed Metal
Then in iDVD click on Media button and on Movie and here select Your Movie and drop it into iDVD Menu window.
Now You get a Play movie title/button - If You also get Play Scenes - then select this title and erase it if You don't want it.
Yours Bengt W

How do I get my menu bar at the top of the page with no gaps?

How do I get my menu bar at the top of the page with no gaps? Whenever I move it there is a huge gap at the top of the page which I cant seem to get rid of, i posted about this before but none of the suggestions seemed to work for me. i'm not very good with css so im not really sure where to find the problem. There are generally gaps everywhere which looks at absolute mess, no clue how they got there and why, there is a huge gap underneath my menu bar too which wasnt there before. how do i get rid of this too? its probably some padding a or margin but no clue where.
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Home</title>
<link href="main.css" rel="stylesheet" type="text/css" />
<link href="style2.css" rel="stylesheet" type="text/css" />

<style type="text/css">
body {
margin:0;
padding:0;
font: 1em/1.5 "Lucida Sans", "Lucida Sans Unicode";
#wrapper {
width: 1064px;
margin: 0 auto; /**with width, this centers page on screen**/
background: #FFF;
text-align:center;
.clearing {
clear:left;
height:px;
width: 100%;
</style>
<script src="SpryAssets/SpryMenuBar.js" type="text/javascript"></script>
<link href="SpryAssets/SpryMenuBarHorizontal.css" rel="stylesheet" type="text/css" />
</head>
<body>
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   </li>
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<li><a href="pastpro.html">Gallery</a></li>
<li><a href="Contact.html">Contact</a></li>
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          <li>
                    <img class="main" src="slideshowpictures/logo h copy.jpg" alt="Logo" />
                    <img class="thumb" src="slideshowpictures/logo h copy.jpg" />
                    <span class="title">Logo</span>
          </li>
</ul>
</div>
          <div data-ertype="layout" data-ertemplateName="NONE" style="">                    <div class="erimgMain" style="position: absolute; left:0;right:0;top:0;bottom:0;" data-erConfig="{__numTiles:3, scaleMode:'scaleDown', imgType:'main', __loopNextButton:false, __arrowButtonMode:'rollover'}">
                              <div class="erimgMain_slides" style="position: absolute; left:0; top:0; bottom:0; right:0;">
                                        <div class="erimgMain_slide">
                                                  <div class="erimgMain_img" style="position: absolute; left: 0; right: 0; top: 0; bottom: 0;"></div>
                                        </div>
                              </div>
                              <div class="erimgMain_arrowLeft" style="position:absolute; left: 10px; top: 50%; margin-top: -15px;" data-erConfig="{image:'circleSmall', image2:'circleSmall'}"></div>
                              <div class="erimgMain_arrowRight" style="position:absolute; right: 10px; top: 50%; margin-top: -15px;" data-erConfig="{image:'circleSmall', image2:'circleSmall'}"></div>
                    </div><div class="erabout erFixCSS3" style="color: #FFF; text-align: left; background: #000; background:rgba(0,0,0,0.93); border: 2px solid #FFF; padding: 20px; font: normal 11px/14px Verdana,_sans; width: 300px; border-radius: 10px; display:none;">
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</p>
</div>
<hr align="center" size="10" noshade="noshade" class="clearing" color="#999999" />
<img src="https://www.paypalobjects.com/webstatic/mktg/logo/AM_mc_vs_dc_ae.jpg" alt="PayPal Acceptance Mark" width="192" height="38" border="0" align="right" />
<div align="left">
<p><a href="#" onclick="javascript:window.open('https://www.paypal.com/uk/cgi-bin/webscr?cmd=xpt/Marketing/popup/OLCWhatIsPayPal-outside', 'olcwhatispaypal','toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, width=400, height=500');">Copyright © Hannah-Rose 2013 > <a href="about.html">About</a> > <a href="terms and conditions.html">Terms & Conditions </a></p>
</div>
</div>
<script type="text/javascript">
var MenuBar1 = new Spry.Widget.MenuBar("MenuBar1", {imgDown:"SpryAssets/SpryMenuBarDownHover.gif", imgRight:"SpryAssets/SpryMenuBarRightHover.gif"});
</script>
</body>
</html>

@charset "UTF-8";
/* SpryMenuBarHorizontal.css - version 0.6 - Spry Pre-Release 1.6.1 */
/* Copyright (c) 2006. Adobe Systems Incorporated. All rights reserved. */
LAYOUT INFORMATION: describes box model, positioning, z-order
/* The outermost container of the Menu Bar, an auto width box with no margin or padding */
ul.MenuBarHorizontal
          padding: 0;
          list-style-type: none;
          font-size: 100%;
          cursor: default;
          width: 64em;
          margin-bottom: 0px;
          margin-left: auto;
          margin-top: 0px;
          margin-right: 0px;
/* Set the active Menu Bar with this class, currently setting z-index to accomodate IE rendering bug: http://therealcrisp.xs4all.nl/meuk/IE-zindexbug.html */
ul.MenuBarActive
          z-index: 1000;
/* Menu item containers, position children relative to this container and are a fixed width */
ul.MenuBarHorizontal li
          margin: 0;
          padding: 0;
          list-style-type: none;
          font-size: 100%;
          position: relative;
          text-align: left;
          cursor: pointer;
          width: 8em;
          float: left;
/* Submenus should appear below their parent (top: 0) with a higher z-index, but they are initially off the left side of the screen (-1000em) */
ul.MenuBarHorizontal ul
          margin: 0;
          padding: 0;
          list-style-type: none;
          font-size: 100%;
          z-index: 1020;
          cursor: default;
          width: 8.2em;
          position: absolute;
          left: -1000em;
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to auto so it comes onto the screen below its parent menu item */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
          left: auto;
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
          width: 8.2em;
/* Submenus should appear slightly overlapping to the right (95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
          position: absolute;
          margin-top: -5%;
          margin-right: 0;
          margin-bottom: 0;
          margin-left: 95%;
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to 0 so it comes onto the screen */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible ul.MenuBarSubmenuVisible
          left: auto;
          top: 0;
DESIGN INFORMATION: describes color scheme, borders, fonts
/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
          border: 1px solid #CCC;
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
          display: block;
          cursor: pointer;
          background-color: #FFF;
          color: #333;
          text-decoration: none;
          font-family: Pristina;
          font-size: 21px;
          font-weight: normal;
          padding-right: 0.75em;
          padding-left: 0.75em;
          padding-top: 0.5em;
          padding-bottom: 0.5em;
/* Menu items that have mouse over or focus have a blue background and white text */
ul.MenuBarHorizontal a:hover, ul.MenuBarHorizontal a:focus
          background-color: #33C;
          color: #FFF;
/* Menu items that are open with submenus are set to MenuBarItemHover with a blue background and white text */
ul.MenuBarHorizontal a.MenuBarItemHover, ul.MenuBarHorizontal a.MenuBarItemSubmenuHover, ul.MenuBarHorizontal a.MenuBarSubmenuVisible
          background-color: #FFF;
          color: #666;
SUBMENU INDICATION: styles if there is a submenu under a given menu item
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenu
          background-image: url(SpryMenuBarDown.gif);
          background-repeat: no-repeat;
          background-position: 95% 50%;
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenu
          background-image: url(SpryMenuBarRight.gif);
          background-repeat: no-repeat;
          background-position: 95% 50%;
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenuHover
          background-image: url(SpryMenuBarDownHover.gif);
          background-repeat: no-repeat;
          background-position: 95% 50%;
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenuHover
          background-image: url(SpryMenuBarRightHover.gif);
          background-repeat: no-repeat;
          background-position: 95% 50%;
BROWSER HACKS: the hacks below should not be changed unless you are an expert
/* HACK FOR IE: to make sure the sub menus show above form controls, we underlay each submenu with an iframe */
ul.MenuBarHorizontal iframe
          position: absolute;
          z-index: 1010;
          filter:alpha(opacity:0.1);
/* HACK FOR IE: to stabilize appearance of menu items; the slash in float is to keep IE 5.0 from parsing */
@media screen, projection
          ul.MenuBarHorizontal li.MenuBarItemIE
                    display: inline;
                    f\loat: left;
                    background: #FFF;

From a Technical Architect point of view, how to design a web application?

Hi to all,
I am writing this issue here because I this question is not related on how to program, but on how to design a web application. That is, this question is not related to how to program with the technologies in J2EE, but how to use them correctly to achieve a desired outcome.
Basically I know how to develop a simple web application. I like to use SpringFramework with AcegiSecurity and Hibernate Framework to persist my data. I usually use JBoss to deploy my web applications, however I could easily use Tomcat or Jetty (Since I am not using EJB�s).
However I have no idea on how to develop (or a better word would be �design�) a website which is divided into different modules.
Usually when you develop a website, you have certain areas that are public, and other areas that are not. For example, a company would want anyone on the Internet to download information about the products they are selling, however they would only want their employees to download certain restricted information.
Personally I try to categorise this scenario in to common words; Extranet and Intranet.
But � (and here starts the confusion in my mind) should I treat these two as two projects, or as one project? The content to be displayed on the Extranet is much different then the content to be displayed on the Intranet and definitely clients should not be allowed to the Intranet.
First approach would be to treat them as the same project. This would be perfect, since if the company (one day) decides to change the layout of the website, then the design would change for both the Intranet and the Extranet version. Also the system has a common login screen, that is I would only need to have employees to have a certain Role so that they have access to the intranet, while clients would not have a certain Role and thus they would not be allowed in. But what about performance and scalability? What if the Intranet and Extranet have to be deployed on the different Hardware!?
The second approach is to threat them as two separate projects. To keep the same layout you just copy & paste the layout from one project to another. However we would not want to have two different databases to store our users, one for the employees and the other one for the clients. Therefore we would build a CAS server for authentication purposes. Both the Intranet and the Extranet would use the same CAS server to login however they could be deployed on different hardware. However what if we want to change the design. Do we really want to have to just copy and paste elements from one project to another? We all know how these things finish! �We do not have time for that � just change the Extranet and leave the Intranet as it is!�
The third approach (and this is the one I like most) is to have a single project built into different WAR files. The common elements would be placed in all WAR files. However in development you would only need to change once and the effects would show in the different war files. The problem with this approach is that the project will be very big. Also, you will still need to define configuration files for each one of them (2 Web.config, 2 Spring-Servlet.config, 2 acegi-security.config, etc).
Basically I would like something in the middle of approach 2 and approach 3! However I can identify what this approach is. Also I can not understand if there is even a better approach then these three! I always keep in mind that there can always be more then two modules (that is not only Intranet and Extranet).
Anyways, it is already too long this post. Any comments are more then welcome and appreciated.
Thanks & Regards,
Sim085

Hi to all,
First of all thanks for the interest shown and for the replies. I do know what MVC or Multi-layered design is and I develop all my websites in that way.
Basically I have read a lot of books about Domain-Driven Design. I divide my web applications into 4 layers. The first layer is the presentation layer. Then I have the Facade layer and after that I have a Service layer (Sometimes I join these two together if the web application is small enough). Finally I have the Data Access layer where lately I use Hibernate to persist my object in the database.
I do not have problems to understand how layering a web application works and why it is required. My problem is how to design and develop web applications with different concerns that use same resources. Let me give an example:
Imagine a Supermarket. The owner of the Supermarket want to sell products from the website, however he wants to also be able to insert new products from the website itself. This means that we have two different websites that make use of the same resources.
The first website is for the Supermarket clients. The clients can create an account. Then they can view products and order them. From the above description we can see that in our domain model we will have definitely an object Account and an object Product (I am not mentioning all of them). In the Data Access layer we will have repository objects that will be used to persist the Account and Products.
The second website is for the Supermarket employees. The employees still need to have an account. Also there is still a product object. This means that Account and Product objects are common to the two websites.
Also important to mention is the style (CSS). The Supermarket owner would like to have the same style for both websites.
Now I would not like to just copy & paste the objects and elements that are common to both websites into the two different projects since this would mean that I have to always repeat the changes I make in one website, inside the other one.
Having a single WAR file with both websites is not an option either because I would not like to have to deploy both websites on the same server because of performance and scalability issues.
Basically so far I have tought of putting the common elements in a Jar File which would be found on the two different servers. However I am not sure if this is the best approach.
As you can see my problem is not about layering. I know what layering is and agree with both of you on its importance.
My question is: What is the best approach to have the same resources available for different websites? This includes Class Files, CSS Files, JavaScript Files, etc.
Thanks & Regards,
Sim085

How to clear the cookie in midlet before quite the midlet?anyone?pls

i am fresh in J2ME . Can anyone teach me on how to clear the cookie in midlet before i quit from it?
I designed an application that require login and use session(cookie) management, i need to clear the cookie before or during i quit the midlet, so that the user will need to login again after quit from midlet. Can anyone pls assist me? i need it urgently!

I designed an application that require login and use session(cookie) management,How did you implement the cookies. This isn't a built-in part of J2ME. You have to implement it yourself (saving the cookie and resending it in future requests), so only you can know how to delete it.
shmoove

How to make a simple Plugin system?

hey guys, first let me say I see very much hostility here, and I'm not here to annoy anyone, so if you don't feel like answering then simply don't.
I want to design a simple Plugin System for my application. I think what I need is a bit of reassurance and redirection if I'm making wrong assumptions.
here is the stages I see:
1. the system has a HashMap<String,PluginTypeData> that holds types of plugins, and the folder of the application that hold the libraries files for the plugins among other details.
(this would be saved in the application configuration file)
2. once the application starts/on request the system would load the libraries into the memory.
3. in each library there should be a file that holds the textual fully qualified name of the classes that this plugin would require to operate properly.
4. the objects in the library would have to be familiar to the application, therefore they must implement or extend a known base object from the application, and once loaded a reference to that known base object is assigned to the new object.
5. and then if I want to load a GUI component from the plugin I just get it from the reference.
lets start with how does that sound? I would like to get a feed back, just a serious one please, that may help me understand any mistakes I might be doing, and not just to understand that I'm wrong....
Thanks in advance,
Adam Zehavi.
Edited by: Adam-Z. on Dec 19, 2009 12:34 AM

well, English is not my native, so I find it hard to describe, sometimes I feel the lack of words to describe what I want, and I have to take a break, and use a dictionary to find the right word to use, and sometimes these are basic words that I miss so I'm sorry if I'm not clear.
And this will be required for every single plugin in exactly the same way? If not then each plugin should include a factory.Yes, they are all saved the save way, every plugin has a method that create an instance of a basic class J2MeDataChunk.
The types of the data chunks are defined on the J2Me platform and only there.
The reason that they are defined on the J2Me platform is because of the first limitation of the J2Me platform.
1. I cannot import into the build path of the project any external libraries.Therefore in the future when I would like to add more chunk types, I would have to add them into the J2Me project as classes, and not as a jar in the build path, but the plugin would have to refer to the J2Me project and to know which chunk type it is going to edit.
Each plugin knows how to edit a different type of J2MeDataChunk, the data chunks saves them selfs into a data output stream using a serialize method in each of them, and the serialize method is invoked from the plugin itself when the user (me) press the save button.
"produce"? You mean a factory?No, I meant that the object I posted earlier (J2MeDataChunkType) is an object that represent the type of the data chunk for each of the data chunk types, and that there can only be one instance of the object that represent the type of the data chunk, and that single instance of the object that represent the type of the data chunk is the one that can create new instances of that data chunk type, it can create an empty data chunk,or to deserialize the data chunk type using a DataInputStream, and it has an abstract method, that returns Swing component only on the J2Se platform (a class that extends the J2MeDataChunkType object on the J2Se platform that overrides the abstract method for the editing Frame/Panel).
What do you mean "external" libraries? Your code doesn't count right?I mean that a J2Me project cannot import other jar files into its build path, only the classes files that are in the project are known to the complier.
The other two limitations are not limitations at all as far as I can see.well the third one might not be a limitation but it is a pain in the .. S since I have to implement every object I want to serialize myself
but the second one, well, if you don't use the full strength of the 1.5 then you might not miss it, but there are so many elements I miss when programming on J2Me platform... like this one, I don't know how it is called:
class A {
class B extends A {
class C {
A getA() {
// return instance of A
class D extends C{
B getA() { // this is not implementable on J2Me, and I miss this for better implementation of things since I try to integrate my J2Me platform I'm building with J2Se application.
// return instance of B
}moreover I miss enumeration, god I love using the
for(Object o: objectList)very useful very efficient to use...
and how could I leave generics out... wow no generics... terrible oh, and enums, no enums... hell if there were enums on J2Me... life would have been less gray.
so yes I see all this as limitations, it slows me down allot, and it makes my code less readable.
well since I try to build a bridge between the J2Me and J2Se platforms, and since there are some limitation to the J2Me platform* I needed to
define a few things in a few objects, it was possible to make all the data to fit into one object, but it would make that object too heavy for the
J2Me platform (besides I rather having two objects it felt more OOD right way to do), where one is a type definer that can produce only one
instance of this object although it is inheritable,
Memory in terms of the class or the instance? If the instance then it doesn't have much to do with this discussion. If the class then that impacts >your design because with a limited memory size and large impact then unloading might come up - and that requires a class loader.well this design actually adds an extra class for each type I decide to add to my platform although at the end I intend to join all the objects that represent the type of the data chunk into one object only on the J2Me platform which would actually add only one class to the memory on the phone, it is just easier for me to see things clearer now as I design this bridge application between the platforms, besides it allows maximum flexibility to create new types of chunks, and that was my main aim, to make as many types to be saved on files that I can transfer via a wireless onto the phone and the platform on the phone would know exactly what to use them the data chunks for with out any user intervention.
as for instances, this way I reduce the memory each of the chunks would use and in the total calculation it would improve memory usage while creating objects from these chunks.
Presumably you are managing the data items because the base class is going to provide functionality relevant to them.Right, the base class is the most common ground I could find for all the chunks together.
Presuming that each "type" really is a type (say you have 4 interfaces any of which might be implemented) then you would need the following in
a configuration file for each entry.
1. Type of the implemented class.
2. Full name of the implemented class
3. Full name of the GUI dialog object.
4. Optional Name of this entry. I suggest this as it allows you to report errors using this name rather than plugin class names
Per your requirements there is no path nor jar is needed nor can be specified.well I hope that by now you did get that I generalized all the data chunk types that I created into one basic object which I posted earlier, this object handles everything, and the plugin main object would be design on the J2Se platform and would extend that J2MeDataChunkType class and it would return the Swing frame/panel when the J2Se application calls the getPanel method and an empty chunk on the getDataChunk() method.
well, in my case it would extend an abstract class from the J2Me platform, maybe two object I'm still thinking about a better implementation >> so the plugin would be more simple, consist of only one object, that needs to be loaded.It shouldn't matter to you how the class is implemented.But of course it does, I want to make my life as simple as possible when I implement new plugins, having one object with abstract method, that when I extend it Eclipse would automatically add the abstract method for me to implement, and just a short glimpse at another implementation of the plugin would let me design another plugin in seconds.(with out making the GUI for the data chunk editing obviously).
I think I got my head around this, especially now that it feels like I could explain what I'm making better in words.
Thank you for taking the time to respond to my posts, I see you currently have 37k post so I guess you are a very quick typer, yet you take the time to try and understand my design. Thank you.
Adam Zehavi.

How to add a dropdown menu in flash document (.swf, .fla) ??

How to add a dropdown menu in flash document (.swf, .fla) ??
as i am developing a website for my semester proj, i need to add some flash contetn in the website..
here is the link, http://www.mediafire.com/?wnx1jkwkkx9c118
Check Out..
the thing is i want a dropdown list/menu in "language selection - tab " (check the html page in above link).. plz help me out..
Thank You,
sairam

For Flash questions check the Flash Forums.
http://forums.adobe.com/community/flash
Nancy O.
Alt-Web Design & Publishing
Web | Graphics | Print | Media Specialists
http://alt-web.com/
http://twitter.com/altweb
http://alt-web.blogspot.com/

How to design HTML Table in ADF

I am new to ADF Tech,
I would like to know, how to design the HTML Table Rows and Columns in ADF
Ex:
<TABLE width="100%" border="1">
<TR>
     <TD>GUID</TD>
     <TD>123</TD>
     <TD>Name</TD>
     <TD>Mark Antony</TD>
     <TD>Version</TD>
     <TD>1.0</TD>
</TR>
<TR>
<TD>Created</TD>
     <TD>Oracle</TD>
     <TD>Modified</TD>
     <TD>Oracle User</TD>
     <TD>Placements</TD>
     <TD>20</TD>
</TR>
</TABLE>
Thanks in Advance

Balaji,
With JSF in general (and ADF Faces too), you should not think in terms of HTML output, but in terms of JSF components. ADF has an af:table component that renders things in rows-and-columns, but emits HTML that is much more complex than just a simple HTML table.
John

How to design the URL?

How to design the URL?i know that the Google will take down the good URL.such as the staticize URL Google will like more..

A site's URL structure should be as simple as possible. Consider organizing your content so that URLs are constructed logically and in a manner that is most intelligible to humans (when possible, readable words rather than long ID numbers). For example, if you're searching for information about aviation, a URL like http://en.wikipedia.org/wiki/Aviation will help you decide whether to click that link. A URL like http://www.example.com/index.php?id_sezione=360&sid=3a5ebc944f41daa6f849f730f1, is much less appealing to users.
Consider using punctuation in your URLs. The URL http://www.example.com/green-dress.html is much more useful to us than http://www.example.com/greendress.html. Google recommends that you use hyphens (-) instead of underscores (_) in your URLs.
Overly complex URLs, especially those containing multiple parameters, can cause a problems for crawlers by creating unnecessarily high numbers of URLs that point to identical or similar content on your site. As a result, Googlebot may consume much more bandwidth than necessary, or may be unable to completely index all the content on your site.

How to design a simple menu midlet in j2me?

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