Newbie to j2me

hi
after whole days of searching ,i can not get how to start develop j2me application
my one client require palm based software
palm is handheld Z22 and its os is Garnet
you can get info from http://www.palm.com/in
now if i want to develop simple apps like hello world ,from where i have to start
I am using eclise 3.3 for java apps(j2ee/j2me) development
even i dont know which plugins i have to use ,either mobile tools or device based development
and how???
please help me for direction

Sure,
It's depends on your phone if you wanna use it into a non-connected mode
you will need to upload your app's using wireless or usb.
Well if you already have an application server who can be accessible
from the internet you will need to add a new MIME type on your web server.
text/vnd.sun.j2me.app-descriptor jad

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Custom Game Menu in j2me

Hello everyone, I'm a newbie at J2ME and I am trying to create a mobile game.
I've been reading on some tutorials and books on J2ME programming, and I've noticed that they create simple menus ( the menu examples they have are pretty simple, doesn't have any background but just a simple list of selections).
What I need for the game is a menu that can have a background and the menu items are highlighted. Can anyone tell me how to do this?
I really appreciate your help. Thank you in advance.

Hi, kikoy87
I think Jason Lam's J2ME game development book is for you. You can download the book from http://sourceforge.net/projects/j2megamingbook/ .It is free . I think you must read Chapter 19 - Custom Interface and using the given examples implementing a custom interface is very simple. I have used that book to learn about custom interface (main menu with sound effect, splash screen) implementing for my game project.
Jestan.

J2ME/MIDP GUI development issues

Hello,
I'm newbie to J2ME/MIDP development .
And I'm curoius about main GUI issues when developing games for mobile phones.
Such as different screen sizes, sprites, etc.
How ppl target for different screen sizes and resolution?
Links for usefull reading is appriciated very much.
Thank you.
Alexei.

There are two configuration
1.CDC
2.CLDC
and Following profiles for the developers to choose from while developing the application for a wireless deveice
for CLDC-
1.MIDP
2.PDAP
for CDC-
1.Foundation Profile
2.Personal basis Profile
3.Personal Profile
Apart from these profiles (JAVA APIs) development can be done in
1.c/c++
2.net
Now my questions or rather the issues that i always face or rather i always get confused over it
1.How to know that a particular device supports which Configuration
Check the device Specifications, Nokia supports maybe java, while motorola supports may be .NET
2.After the configuration is known, which profile is to be used.
Depends on what you want to develop, once you know that then you will read the profile spec. and then go for development, let say if you wanted to develop a simple game, it can be done in MIDP only, while if you need advanced multimedia, u need implementation of MMAPI also, on the other hand if you want to develop diary of contact managment software you will yous PIM.You should know the wanter in pool before taking of your clothes and going for a swim.
3.For developing the application in c++, do different device category give different set of APIs for development.,plz explain.
Most of the C++ api's are devices specific(after all that is when java wins)
4.What about the development platform for PALM and POCKET PC devices.what profiles from the above listing do they use .
they use the CDC configuration, and Personal Profile
5.can development on POCKET PC be done only on compact .net framework???
No, Commercial JVM are available, infact a free one is also available, search this forum you will find out.
Hope this help

Starting with J2ME

I'm trying to start with J2ME, and am completely puzzled by the whole thing. And Sun doesn't help much either. I'm trying to make a game, where lines fly by in the screen. The user must avoid these lines, by moving the ship around with the stylus. Is there enough in J2ME to accomplish this?
Another worry: Is J2ME obsolete? It appears to me that it hasn't been updated for a long time.

Hello,
Is there enough in J2ME to accomplish this?Yes.
Is J2ME obsolete?No. Sometimes new technologies are not much visible to newbies. J2ME may be one of them. If you continue having difficulties, i reccomend you to buy a book to start quickly to J2ME.
Here are some tips for your J2ME game:
Getting Started with Java ME
http://www.java-tips.org/content/view/95/73/
How to write your First MIDP game
http://www.java-tips.org/content/view/833/73/
How to use a tiled layer in J2ME
http://www.java-tips.org/content/view/423/73/
How to implement a sprite class in J2ME
http://www.java-tips.org/content/view/424/73/
Detecting collision with sprites in J2ME
http://www.java-tips.org/content/view/425/73/
Good luck.

Help with J2ME installation !

Hi all,
I am a complete newbie to J2ME.
I need to start working small applications for Ericsson K750i as a part of my project.
Can anyone let me know which package I will need to install to be able to write apps for k750i ? Is it the Java Wireless Toolkit that I need ?
All help much appreciated.
Thank you.

First of all I'd suggest you read through MIDP 1.0a and 2.0 specs (see http://www.jcp.org/). This will give you overview of what to expect from J2ME. Additionaly you could read Bluetooth API spec and others.
For books, Core J2ME by John W. Muchow (http://www.amazon.com/exec/obidos/tg/detail/-/0130669113/002-3226980-2560825?v=glance) is a good starter. If you require it, check out also J2ME Game Programming (http://www.amazon.com/exec/obidos/tg/detail/-/1592001181/002-3226980-2560825?v=glance)
Hope this helps,
Peter

Is it a third party API for creating table in J2ME?

I am a newbie to J2ME and i would like to know that whther is there any third party API for creating table in J2ME beside using Canvas to draw the table? Please help...

its not the "L shape" that holds it better rather the higher GAUSS rating on the older connector.
Apple redesigned the NEW magsafe to be weaker AND of a diff. design with lower neodymium magnetic gauss rating for a reason
people at coffee shops etc were getting their macbooks yanked to the ground when someone tripped over the cord.
The new neodymium is a N35 gauss and the older Lshape was N40 or N45 gauss (too tight)
I know what youre talking about, but Apple redesigned it that way for several good reasons, despite it "coming out easier" on the bed for which ,
as Apple Inc. states, it is "not intended to be used" (nor in laps, couches...etc.)

J2ME with ODBC/mySQL/JDBC

hi all,
is there anyway to make a connection to a MSAccess file?
then from there, getting info from it and returning the inputs to the file?
above queries are for usage on J2ME.
T.N. J2ME has a language limited to javax.microedition.*
regards and thanks in advance,
Nicky

Have you tried using a JDBC-ODBC bridge driver??i'm a newbie to J2ME,.. and everything else except basic java.
can u kindly explain and guide me thru it?
one more thing is, can it work with J2ME??
Nicky.

Newbie: Which VM?

Hi guys,
be forwarned i'm a newbie in j2me ;-)
Analog to j2se, where could i download a VM for a Windows CE/Pocket PC-System?
I mean a standard VM, not Superwaba or something else. Is there nothing out there?
Regards & Thanks in advance
Thomas

http://www-306.ibm.com/software/wireless/weme/
Support for Windows Mobile 2003, CLDC 1.1/MIDP 2.0, CDC/Foundation/Personal Profile 1.0, JSR-075 PIM and FileConnection...others

J2ME which IDE ??

Hi all,
I am a newbie at J2ME and would like some advice on what tools/IDE/SDK's people are using to develop,test and deploy J2ME.
Also if anyone knows any good links to how to get started in this area would be great! I need to develop a java application on nokias 9300 that can send and receive messages what would be the best approach to do this SMS? sockets?? I have no idea on how to get started and what development tools to use. I have been programming in java for a couple of years but never in these mobile device areas.
I look forward to peoples suggestions ... btw I have downloaded Carbide.j and the Sun Java Wireless Toolkit are there any tools like these for Linux??? I noticed that Carbide.j has eclipse extensions so I assume I can use them for linux.
Cheers

Have alook at the following,
1) Netbeans Mobility pack:
http://developers.sun.com/prodtech/javatools/mobility/downloads/
2) Nokia Developer's Suite for J2ME:
http://archive.devx.com/wireless/vendordocs/
3) Eclipse plugin for J2ME:
http://www.autexier.de/jmau/dev/j2me
These are the ones i know so far , u can surf the whole list before u pick one
Cheers!,
Birhanu

Does someone know link for good tutorial on j2me ,please help

plese help i m a newbie in j2me kindly suggest tutorial which guides its reader
from grass root level

Have you looked over this:
http://developers.sun.com/techtopics/mobility/midp/articles/wtoolkit/
Good Luck
Lee

Activate a Midlet from an Applet

Hi,
I am trying to activate a Midlet from an Applet? Is this possible in any of the latest J2ME releases?
Using SATSA I am able to send APDU commands from the Midlet to the Applet and start a scenario where my Applet and Midlet exchange information.
Is this available in the opposite direction. I want that my Applet, when triggered by an event, be able to Activate\Wake Up the Midlet.
I am a newbie to J2ME and after researching the web, still couldn't find an answer. Thanks for your help.
Bye.

You can communicate with servlet from an applet, using URL connection, and then send POST/GET methods through HTTP protocol, here is a code snippet,
// applet side, this method will send a POST method to the servlet and then get url openstream to read a
// returned object from the servlet, params should be in the form param1=value&param2=value etc...
public Object getObjectFromServlet(String servletName,String params) {
    Object object = null;
    try {
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                        contextRoot + servletName + params);
      URLConnection con = url.openConnection();
      con.setUseCaches(false);
      InputStream in = con.getInputStream();
      ObjectInputStream result = new ObjectInputStream(in);
      object = result.readObject();
      result.close();
      in.close();
    catch (ClassNotFoundException ex) {
      System.err.println("ClassNotFoundException caught:" + ex.getMessage());
    catch (MalformedURLException ex) {
      System.err.println("MalformedURLException caught:" + ex.getMessage());
    catch (IOException ex) {
      System.out.println("IOException caught:" + ex.getMessage());
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//servlet side
public void doPost(HttpServletRequest request, HttpServletResponse response){
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       String param2 = request.getParameter("param2");
try {
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        out.close();
      catch (IOException ioe) {
        System.err.println("IOException caught:" + ioe.getMessage());
}

How to install and run my .jad and .jar on my Nokia6230?

I'am newbie with J2ME.
I transfer the .jad and .jar files of my first HelloWorld middlet to the phone.
What is the next step?
Is needed some JVM or similar in the phone?
(When I try to open those files a 'file format not recognized' appears)
thakns!

Adarsh
Before you start, it would be best to check for systems prerequisites (especially the backend Business Suite that you want to run against). Then you need to decide whether you want to run NWBC Desktop (i.e. Windows based) vs HTML (i.e. Browser based). The OSS Note # 900000 (NWBC FAQ) below should help to set you in the right direction.
https://websmp130.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/sno/ui_entry/entry.htm?param=69765F6D6F64653D3030312669765F7361…
License wise, NWBC licensing is the same as SAPGUI ... It's free as long as you have the standard SAP maintenance license.
HTH

How to run SMSDemo from WTK2 in a real HP (SE K500i)?

Hello J2ME experts out there,
Is there a way to run the SMSDemo from Wireless Toolkit 2 in a real Handphone? How?
I've tried to deploy it to my SE K500i, which AFAIK has supported WMA 1.1, but had no luck in sending nor receiving SMS. When I tried to send sms, it only showed a message "Sending message to +628124524", but apparently it didn't send anything, because the destination number never received the sms. The receiving part is even worse, when I clicked "Receive sms" from the menu, a "Application Error" message appeared.
Is this due to the way I deployed it? Does it have to be deployed using OTA? Because I only transferred the jar file directly from pc to my handphone using IrDA. Or is it due to the app not knowing the SMS center number where the message has to be sent through? How to tell the app which SMS center number of the operator it must use? I don't know which part of the coding or command to set this thing. Or the WMA will discover this automatically? What about the port setting? I don't know how to determine and where to find the port number to use.
I need to make an application to send sms using WMA, therefore I have to know how to make this SMSDemo run in a real hand phone.
I'm quite a newbie in J2ME. Any help would be greatly appreciated. Thanks in advance.

Hello, I made some changes and it worked, really I don't know which one of those was the effective one. I will continue searching.
First, in forums say that you need to quit all the permissions ( Really I dont think its the answer) At least, that thinks avoid t have an error message, "Authorization Failure".
Second, Quit Push Registry...
avoid use of , in SMSSend , I dont' know why In mi phone 6600 didn't work
-->>> smsPort = getAppProperty("SMS-Port");
try
smsPort=new String("50000");
or in SMSSender, just use
-->address = destinationAddress;
See ya

Error when trying first test "midp HelloMidp"

Hello,
I'm a newbie with j2me I have a small problem to create my first application.
I'm tried an example I read in a book.
Here is the code of my class:
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class HelloMidp extends MIDlet {
public void startApp() {
Form form = new Form("HelloMidp");
Display.getDisplay (this).setCurrent (form);
public void pauseApp(){
public void destroyApp(boolean unconditional){
I have defined some environment variables under WinXP:
MIDP_BCP=C:\j2me\midp2.0fcs\classes
MIDP_HOME=C:\j2me\midp2.0fcs
I can compile my class with
javac -bootclasspath %MIDP_BCP% HelloMidp.java
There is no error.
I can preverify with
preverify -classpath .;%MIDP_BCP% HelloMidp
There is no error.
But when I want to test it with midp.exe
I use "cd output", "midp HelloMidp"
I receive the error "java.lang.ClassNotFoundException: HelloMidp"
I don't understand where is the problem.
Thanks in advance.
Alain.

hmm...
in general it should work, if you are in the ouput dir (as you said), use the "-cp ." for classpath definition to the local directory and name the class (as you did).
try this "midp -cp . HelloMidp" from the directory, where the class is located. (you may add more paths seperated with ; to the cp (abbr. for classpath, should work also).
Well, and with the WTK, simply create a new project, put the HelloMidp in the src dir, specify it as MIDlet or Application and (build and) run it. I dont understand, why this should not work. Strange...
hth
Kay

Howt to get java working on my PDA?

Hello,
I'm java developer and I'm a newbie with j2ME. I have written a small application which is working with my emulator but now I would like to test it on my PDA.
I have an old compaq Aero 1530 and I don't know where to get the virtual machine to test my application.
I really don't understand if I have to get it from compaq or from this site. Is there any virtual machinal available on this site for my Aero Compaq or for any other pocket PC?
If no, where can I get a virtual machine for my pocket PC?
Thanks in advance for your help.
Alain.

I finally got one from the web site http://www.ewesoft.com/
I'm going to try it.
Alain.

Newbie to j2me

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