J2ME and BREW

Hy, My name is Alexandre and I develop Java games.I am with the following problem:I have some old games here in the company that need to be ported to the brew solution, but they don�t have the source-code anymore(just the jars files), is there any tool wich I can use to port a java application to a brew application (some kind of convertor)???thanks for the help

Similar Messages

J2me and java card, need help to communicate

we are trying to put together a reader to read smartcards using j2me and we figure that it would be easiest if we could develop it to work with java cards rather than standard smart cards, the problem is we get garbage when we communicate to it, the chip sends us crap, any suggestions what might be wrong, any calls we might be missing, has anyone worked with j2me and java cards or smart cards, any help would be appreciated.
einar

.... reader app and the ME behind it .... smells like mobile ....
First of all - if you want to have one mobile application running on this just make sure that whatever is written in ME can use drivers from the reader chip ....
Workin on the PC is something completely different. There was one good example how to develop one host application in Java provided with the JCOP tools long ago ... I don't know if this is now in the new Eclipse tools.
But - there was a small API provided that can give you good hints what to do - and - once you have it on the reader side - you can easily integrate ME methods with this ...

Information Retrieval with Genetic Programming using J2ME and Java WTK

i have a big project to make a software using java programming especially n using J2ME and Java Wireless Toolkit, and i'm a begginer for java programming. I have no idea for the interface and how to setting connection between my phone mobile and GPRS. what should i do? thank you

I believe MIT has lots of sourcecode. Try searching their site.

J2ME And JSP...

Hi there Experts...
i am new to J2ME and i need to connect my MIDP forms to jsp..
i dont have any idea about that. Is it possible to pass values those been selected by an user from mobile device to the jsp and again answer from jsp to he mobile device..?
Please help me out...
Agam

Hi,
Here is the example of HttpConnection Class
HttpConnection conn = (HttpConnection)Connector.open("http://www.yourdomain.com/mypage.jsp");
InputStream is = new InputStream(conn.openInputStream());and now you can read is as you want and extract data from it.
is can also contain XML data and then you can use XML parsers to extract data.
Now it you wanna send any parameter using querystring then you should write like this
HttpConnection conn = (HttpConnection)Connector.open("http://www.yourdomain.com/mypage.jsp?fname=rohan&lname=chandane");
InputStream is = new InputStream(conn.openInputStream());Regards,
Rohan Chandane

J2ME and JSAPI 2.0

Hi everyone,
How do i use JSAPI 2.0 in J2ME and if possible show me some examples.
Thanx in advance.

Currently JSAPI is not working well for j2me

Encryption between j2me and j2ee

I need to exchange some cofidential data between j2me client and servelt using http connection . So i need to encrypt the data before i send from j2me and the data should be decrypted at the server side so obviously i should also pass the key. I have searched on the net for a common algorthim that wil suit my requirements but i din get any useful solution. Please any one help me in finding out a algorithm tat meets my requirements.
I appreciate all the replies

i am getting the impression you are new to data security...
if this is indeed the case, and you are in any kind of hurry, i strongly advise you to use ssl if at all possible.
if you can not or will not use ssl then you will need to look into some other options.
there are multiple algorithms to choose from for secure key exchange, diffie-hellman prob being the most popular.
however, you will need to supplement the cldc api in order to implement.
some key words to search on:
diffie-hellman
rsa
aes
tripple des
satsa
bouncycastle
j2me security
j2me encryption

J2ME and MIDP beginner questions

Can anyone recommend editor/IDE, toolkit etc. for coding, building and testing MIDP2.0 apps/games?
Until now I've coded a game using J2SE. I used Forte 3.0 for coding and compiling, and IE5.5 for testing.
Now I want to code mobile games/apps using J2ME and MIDP 2.0. What software do I need? I downloaded Sun ONE studio 4 ME and wireless toolkit 2.0, but are kind of struggeling with it :)
Regards
Hallvard

Ok, I found out that the toolkit compiled the .java files and could bulid the .jar and .jad files, and then test the MIDLet on the emulator.
But what about a good editor/IDE for MIDLets? In Sun ONE studio ME i finally managed to create a HelloWorld Midlet (with new project wizard), and build and run it in the toolkit.
I also heard that Borland JBuilder Mobile Edition was a nice IDE for J2ME/MIDLets.
Hallvard

J2ME AND GPRS

Hi to all,
Iam new in the field of j2me. I have developed a j2me program,that accessing internet by gprs. But in mobile, i don't know, what the things that i have to set. The mobile is gprs activated. But that application is still not working. Is there any other settings in mobile.?

I'm quite rusty with j2me, and you don't give much info. Internet settings for java applications can (at least some years ago) vary very much for different devices. To get an answer to how your specific device should be configured, you're probably best off trying to find a more specific forum, preferably one about your particular device, but at least something focusing on j2me.

Which handheld devices support both J2ME and Wi-Fi?

Which handheld devices support both J2ME and Wi-Fi?

Hi,
Got the Lumia CYan update yesterday hoping that it would fix my bluetooth problem. I have Cortana on my Hong Kong country variant but still bluetooth issue is not resolved.
After pairing instance, the bluetooth does not re-connect on subsequent attempts (it does try to reconnect). On reconnect attempt it fails and presents "tap to pair" under the bluetooth network.
Please help.
Daman
Lumia 1520
Past: Icon, 928, 720, N9, N97(ugh)

J2ME and 802.11b?

I'm planning to make wireless P2P between PDAs and PC using WiFi and J2ME.
Are there any issues between J2ME and WiFi that I should know about?
How difficult is it to make such a network?
Is J2ME compatible to most PDAs?
Can J2ME be used for an app on a PC?
I need all the help I can get. I am at your mercy. =)

Are there any issues between J2ME and WiFi that I
should know about?I'm guessing you will be using Sockets, Nokia phones, and sockets don't get on.
Is J2ME compatible to most PDAs?Sun have a PalmOS J2ME JRE, Symbian/Psion have a J2ME JRE and I've seen a MS Windows CE/PocketPC J2ME JRE about, Google knows all.
Can J2ME be used for an app on a PC?You would be better off writing a generic back end, then a J2ME LCDUI interface and a Swing/AWT/SWT interface, but I've seen the javax.mobileedition packages about for J2SE, or you could use a phone emulator.
I need all the help I can get. I am at your mercy.
=)I think one of the optional packages does P2P, I can't remember which thou.

J2ME and RTP

I am transmitting video with the JMF.
I have that to receive this exactly video with J2ME and RTP.
How I make?
Already I tried to use "rtp://10.1.1.3:22224/video"
but it gives error... they know on this?
Thanks

Hi,
I am very much interested in audio stream using J2ME. Do you have any examples on this topic?
Thanks in advance

Difference btw J2ME and SAP MI

Hi All,
I have a basic doubt , what is difference btw J2ME and SAP MI.
I understand while J2ME devlopment we develop MIDLET and how do we call the Midlet in Mibile ??
What is the advantages of both and limitation of j2me , stopping me not use that and go for SAP MI
Advantages of sap mi in a nustshell would be appreciated.
Thanks for reply
Regards
Srinivas

Hi Srinivas,
SAP MI currently known as NetWeaver Mobile 7.10] could be seen as a technology platform to mobilise enterprise applications(for occassionaly connected / disconnected scenarios)
Mobile consists of a server component named Data Orchestration Engine [DOE] and a java based Mobile client for Windows Mobile devices. DOE is an ABAP component that acts as an interface between your SAP/non-SAP Backend [like ERP, CRM etc] and the Mobile device by staging the data , distributing it to relevant receivers with extensive monitoring capabilities with a model driven approach.
DOE talks to backend via Bapiwrappers / webservices and talks to mobile device (client running on the device) with a messaging protocol over http(s).
Apart from the default java mobile client that is shipped from SAP , any custom client written in any native client technology could be integrated to DOE.
There is also a co-innovation model along with partners like sybase where there are some mobile solutions already available in market like mobile sales that could be run on smart phones like iphone,blackberry etc.
You can checkout several articles and blogs available in sdn itself for Mobile for understanding more about this .
Regards,
Liji

Testing of Java J2ME on BREW simulator

Dear friends,
I have developed a Java J2ME application and wishes to test it on a BREW simulator. I understand that the simulator runs BREW applications written in C/C++. I sincerely like to seek your kind assistance on where I can find the necessary JVM and J2Bridge to test my Java application on the BREW emulator. This will aid in my porting of my Java application onto the BREW platform.
Any suggestion on BREW emulators supporting JAVA and further infomation is greatly appreciated!
Many thanks!
Regards,
Chai Ming Jie

Rumour has it BREW 2.0 and upwards supports running MIDlets. I haven't used it, don't know if it works (in fact, rumour also has it that it doesn't work on any of the phones available today), but that's the word.
I'm sure you'll get better answers to a question like this on a BREW forum, though.
shmoove

J2ME and phones - help please -

Hi, all. I haven't found much help related to this question, so I'm hoping you all might be able to help me.
I'm looking into developing for mobile phones. I haven't played with J2ME so much at the moment but I'm on my way. I've got my resources and by the end of this summer I hope to have jumped on that band wagon.
Here's the scenario: I want to be able to write programs on my PC via the wireless toolkit (I use netbeans). Then I'd like to be able to connect my mobile phone to my PC via USB or Serial cable and upload my programs direct from my PC to my mobile. I'd like to not have to verify the program through BREW or any other online service because AFAIK I have to pay for that. I'm a poor student who's just making enough money to buy a Java enabled cell-phone by the end of this summer.
Here's the question: What should I look for in a phone?
My first choice of phone was a Sony Ericsson, I'm assuming it's got direct PC-Mobile transfer enabled. Second was a Nokia. Unfortunately, no carriers around here, at least the ones I'd buy from, carry either of those two phones. I did find an LG 6070. But like I said before, I don't really know what I'm looking for. No-where does the documentation explicitely say anything about direct PC-to-Mobile transfers, and that is what is most important to me.
Thanks for your help.

Wow, thanks for the reply.
As for the target, it would mostly be just for myself at the moment. I am aware that if I were to target a mass market, there are multiple emulators out there I'd have to test my program with. And that I'd have to make minor changes, possibly, for phones with different specs, ala amount of memory a phone has or it's screen size/resolution.
You got me, I'm into the games thing, but aren't we all? I'm trying to acquire the book "J2ME Game Programming" this summer. So that answers what kind of applications I'm going to write.
I scoped out a few more phones today and surprisingly, the motorolas actually have some appeal to them.
That's the sweet part, anyone can write anything and deploy it! I'm assuming from your response that any Java enabled phone should allow PC-Mobile transfer.

Help: forcing use of proxy in j2me and getting value of gateway IP address

hi everyone,
#1
Has anyone tried forcing the use of a proxy for a midlet? If so how did you do this? I was able to connect to a url through the emulator (ktoolbar) by changing the proxy settings under the edit-->preferences on ktoolbar but I want to make sure that my midlet enforces the use of a proxy to connect to a http url (so that I'll know it still uses the proxy even if it is already using a real java-enabled phone).
somebody suggested to me to take a look at http://java.sun.com/j2me/docs/html/docs/Running.html
I've tried the instructions from the url but it seems like its just the configuration you run when you test it in your emulator. Similar to changing the preferences on ktoolbar to use a proxy.
This is what I did:
I tried changing the config to a working proxy, compiled my midlet, download it into my java-enabled phone and tested if it can connect to a backend server. The result: I was able to get a reply from the backend, however, when I changed the configuration to a non-working proxy, I still get a reply from the backend server. This leads me to believe that the midlet uses the current internet connection profile on the phone.
If this is the case, then that means I am dependent on the phone settings and I could not change/force the midlet to use the current connection with a proxy server I defined. I've searched the internet and have seen sample codes to use proxy servers when connecting to the intenet but they are not for j2me applications (so far). Is this a limitation of j2me? maybe there is really no way to connect using a proxy defined in an application since there is no api for it? Correct me if I'm wrong though. Is there a workaround for this?
#2
Another problem that I am trying to solve is to get the value of the gateway IP address defined on the phone when it connects to the internet. Is this possible? If so, how?
Any ideas will be very much appreciated. thanks to all.
-jess

hi,
does anyone have an answer to this? hope you can help. thanks again.

J2ME and BREW

Similar Messages

Maybe you are looking for