Java micro cell phones?

This may not be the right place to ask, but you can make something in java micro and put it on a cellphone right?

Jadz_Core wrote:
What should i look for in the specs? "Java micro"?Recommend to start your search with Wikipedia - [Java Platform, Micro Edition|http://en.wikipedia.org/wiki/Java_Platform,_Micro_Edition|article]:
Java Platform, Micro Edition, or Java ME, is a Java platform designed for mobile devices and embedded systems. Target devices range from industrial controls to mobile phones and set-top boxes. Java ME was formerly known as Java 2 Platform, Micro Edition (J2ME)...

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What can Java inside cell phone do?

hello,
i would like to know what can Java inside my cell phone do? can it:
1) run in a background
2) initiate a phone call
3) send an sms or receive an sms
4) can it control bluetooth and to what extend
what are things that java cannot do?
thank you very much!

Hi,
J2ME apps run in sandbox mode. Things can be done using various APIs. To
answer your specific questions:
1) depends on the host device implementation, this is not defined by JCP
2) AFAIK not (due to security). There might be an API however that allows you to
do this on certain devices.
3) Yeah, no problem. See http://java.sun.com/products/wma/
4) Depends on APIs provided by device manufacturer. JCP defined http://www.jcp.org/en/jsr/detail?id=82.
The things J2ME can not do are mostly features like accessing your phone
book, use built-in camera (unless APIs are provided), floating point math
operations, ...
Reading J2ME related JSRs from http://www.jcp.org/ will give you the overview
of what's defined and can be expected from all compliant phones. Other
features may or may not be implemented.
Hope this helps,
Peter

Minor prob - with Java on Cell phone

I'm sorry if I'm posting this in the wrong area, please let me know. I purchased an LG8100 phone, and a SanDisk 1 gb memory card. I then downloaded songs to the memory card. On my phone, I selected the option of scanning the headset for any new songs, and usually the new songs will be picked up. However, last night when I added more songs, I got this message after the scan: java.lang.NullPointerException Code 932-B. I don't suppose someone could help me understand this? Please.

From Google:
http://www.howardforums.com/archive/topic/1019840-1.html
Posted by: harmony1019
I had the same problem and then my phone wouldn't turn on at all (got the white telus screen and thats it) so they sent it out, considered it a DOA and gave me a new phone but now the music player won't read the music files i have on my miniSD even though they worked just fine on my old phone yet it will read and transfer pix no problem....it gives me an error everytime i try to play music of: java.lang.NullPointerException Code 932-B
i took it back to telus and they said it's my card but then why did it work in my old phone and why will it work for pix?
can anyone help me? it's great having an mp3 phone that won't play....i miss my music at the gym
Posted by: harmony1019
okay so i finally decided to sit down with my phone and figure out what was going on with it and i'm sorta glad to say that after taking all 150 songs off my SDcard then putting them back on 4 at a time....i dunno where i get my patience from.....i found out that it had "issues" with 2 songs grrrr! but ya it still does the restarting thing....i guess it's a quirk that has to be lived with.
Good luck!

Java on cell phones

I was wondering i have sprint service is there anyway to update the java on my sanyo rl-4920 running 1.011sp. without updating the firmware?

no

How can you get a java program working on a cell phone?

I was thinking of making some stuff for cell phones so i was wondering how you get a normal java program to work on cells.

its all j2me - midlet package....Huh? The jsr-118 MID profile alone has 11 packages, one of which is javax.microedition.midlet. Notj2me - midlet.
works best on nokia phones.Sez who? You seem to be confusing Java ME with Symbian C.
you can use net beans midlet packge add-on.Only it's called the NetBeans Mobiliity Pack.
Its easy to use and has lots of tutorials.Ditto for the Wireless toolkit for CLDC.
just search on google.Yes, but with which keywords?
@OP:
NetBeans mobility pack comes with a short tutorial and several samples, you also need to download the latest WTK as the ver. 2.2 which comes bundled with NetBeans is just too buggy to work with. Then there are the manufacturer-specific SDKs from Nokia, Motorola, Sony Ericsson and (maybe) others.
If and when you get started in Java ME aka j2me, it will be appropriate to post any questions you might have on the mobility forums, not here.
Google "j2me tutorial" for many good hits.
luck, db

JAVA: calling a cell phone

How can I call a cell phone using java?
I need it to make a call to a certain number and play a certain voice message, (and also send a text message).
LP

It depends which hardware you want to use, you can send sms messages via a cellphone which you have connected to your pc. Then you can use AT-commands which you have to send to the port where you have connected your phone (or gsm modul). To do this from within an application you can use javax.comm to communicate with your serial port!
Hope it helps a little bit.

Cell phone Games and Java

I am not sure if this is the right place to post this topic if it is not please tell me were to post it thanks. sorry in adv.
hi i have been programing apps in java for a little wile and was wondering how to make games for cell phone that are java enabled and how it would differ from normal desktop apps as there arent as many keys on a cell phone and the methods and classes i would need to extend and interfaces i would need to implement any help would be a greatful
thanks
nibur

Here's a pretty good thread: http://forum.java.sun.com/thread.jsp?forum=406&thread=429254
You can also try searching all forums, use the little search box in the lower right corner of this page: http://forum.java.sun.com/

Iphoto-cell phone micro card "unreadable"

Samsung cell phone, micro S hc 4 gb, emtec micro S adapter, MacBook Pro, 10.7.5, IPhoto 9.4.2.
At import, "preparing for import," then list of files on card, then "unreadable files."
Photos on card JPG. Any suggestions? Thanks

Well on the 3 android phones I've had there is a setting to unmount the micro sd card before removing it from the phone. None of the phones I've had have been samsung but I don't see why they would be any different.
Did you reinsert the card in the phone and then connect the phone to one of the usb ports? And then select the option to use the phone as a mass storage device, that is an option on the phone. That should open up the sd card so you can read and write to it.
If I recall correctly I think I have read about a samsung program you install on your computer for transferring files. A google search should turn that up.

Java Mcro Edition and Cell Phone Applications

Hi all, I have made a web based application and I need to add a mobile application in it.
I use a little JME and made I simple application using it.
I want to make a cell phone appl. which connects servlets and transfer data for both sided.
Is JME supprots for all cell phones? or Which of cell phones brands?
For instance;
if I make I JME application, can I use it an apple iphone or all of cell phones?
Can You give me some information and the way I need to follow?
Thanks.

It depends on how advanced the midlet will be. If standard components are used, the app should work everywhere, otherwise it need to be tested (it need to be tested always). If You need to write a midlet with Location API You first need to find a device that has this api implemented to test your application and the start writing. One importatnt thing, if a device in it's specification has written that it support Location API it doesn't have to mean that it's supported fully, some functions may not be implemented. As You can see here for instance. If You are not familiar with midlets start with a tutorial for beginners and after finishing try using more advanced APIs.

Java animation on a PDA, or cell phone.

From what I have read (not recently) double buffering on cell phones
is not possible, hence offscreen rendering (Double Buffering) is not possible. Is this still true?
Do PDA's support double buffering?

no its not.
i think you have been looking at midp 1.0 specs.
in the latest, (midp 2.0) using the javax.microedition.lcdui.game package, all this is possible, and more. it is really helpful and a lot of fun too. for example in the GameCanvas class, it renders all graphcis in an offscreen buffer till you call flushGraphics()
i've already used it to create a minesweeper game for j2me devices. its amazing how simple life becomes with midp 2.0
pda's are actually decades ahead of cell phones, so if mobiles support them, pda's sure do.
(P.S. it may take a while to get midp 2.0 on all cell phones. its relatively new)

Add Cell Phone Network Extender to Apple Network

I am currently running a Time Capsule which gets its internet feed from a cable modem (Cablevision). I am trying to add a mobile phone network extender (Verizon micro cell) which requires an internet connection (via Ethernet cable) to create a cell phone call, since I have no towers in my area.
The Verizon micro cell requires a VPN output from the router; the TC does not support VPN. So the Verizon micro cell does not get an internet connection if I connect it to the TC via one of its ethernet ports. It does connect to the internet if I connect it directly to the cable modem.
APPLE: WHY DOESN'T THE TIME CAPSULE SUPPORT VPN?!? Honestly, enough is enough, I like the plug and play part of Apple equipment, but maybe, just maybe some people need semi-pro utility out of your equipment. End of Rant.
I could buy another cable modem from Cablevision and simply plug the Verison micro cell into that, but it costs $45 per month, so that's out of the question.
I would like to understand whether the solution I've been given from a very helpful Cablevision tech guy will work and how to execute it with minimum disruption to my network (currently the TC feeds an Airport Express elsewhere in the house as a network extender, so I really do mean minimal disruption, please). In essence, it involves cascading the Linksys to the TC.
I am told to connect the cable modem to a router (I have two unused Linksys routers, one wireless and one without WiFi; my preference is to use the non WiFi router so I don't have two wireless signals), and then connect via the Linksys ethernet ports to the Verizon micro cell and the other to the TC. Apparently this is possible if the TC gets a WAN connection, as opposed to a LAN connection, from the Linksys. The micro cell works fine already, so I guess it just doesn't care.
According to Apple, the input that I'm already using, from the cable modem to the TC, is a 1 GB ethernet WAN port for connecting a cable modem. When I cascade the Linksys to the TC, the TC doesn't see an internet connection, though, and it makes sense that there are conflicting IP addresses causing the problem. The port out of the Linksys works fine as if I switch the wiring, the micro cell gets an internet connection no matter what.
Question 1: How do I configure the Linksys so that its output is something the TC can handle? Will the configuration screw up the signal that's going to the micro cell which is already OK?
Question 2: Or what do I do in AirPort Utility to set up the TC to see the signal correctly (ie as a WAN signal) from the Linksys?
Question 3: Is there anything else I need to know?
Despite the "Go Dog, Go" style of writing above, I know my way around configuring Linksys routers, so your reply can be quite technical. Thanks in advance.
H

Well, not much telling unless you ask the carrier that you are trying to use. If it will not work with the SIM you are trying to use, there could be any number of reasons with a phone that has not been purchased through an authorized reseller. I'm afraid no one would really be able to answer your question without a lot more information.

J2ME on cell phones questions

Hi,
I'm in the process of picking a project and wanted to see how doable it is. The project involves a cell phone and a Java program to use Bluetooth. This is real unknown territory for me so my questions are very simple. First does J2ME have packages/classes that allow for bluetooth communication (name)? Or is that a separate package I need to find?
Second, can you save to files/permanent memory from an application running on a cell phone (to save some program settings etc). On the cheapest cell phone usually how little memroy is available? Also can you name some classes that allow for this in J2ME (other libraries).
Finally how standard is all this? What's the probability that the program will run on all of the new cell phones? On all new cell phones from same manufacturer?
Thanks.

Hi,
J2ME has JSR 82, that specifies BlueTooth stack. It's bundled with latest WTK releases (and netBeans 4.0 Mobility Pack as well). If it's available on device depends on HW equipment of the device of course.
For your second Q: RMS storage is defined by MIDP 1.0 itself so yes, you can store some records. Not sure about the size I guess you can count on 8kb. The storage will be more , least I know of is 30kb on Nokia 6310, usual sizes are 1-5 Mb, smartphones use MMC cards, so the size can grow to hundreds of megs.
Peter

Oracle Lite on Cell phones??

Hi,
I have a question, the documentation and metalink said that Oracle Lite is only supported for Laptops, tablet PC, Pocket PC and Palms. However, many people is interested in using on cell phones.
Someone knows if certain devices like Black Berry has the capability of supported it.

The Datbase Lite client RDBMS is ported to CE, Mobile 5 and Symbian OS 7 and 8. Telephone handsets using these OS environments, Nokia, Sony Ericsson, Motorola, HTC, Samsung and others, can and do use Datbase Lite.
Blackberry is a Java only enviroment and it is not possible to port the client database since it is written in C/C++ and RIM want allow anything but Java on their devices. We would have to re-write the client database in Java and that development effort is extreme.
TNX,
Phil

Collab Subscription Emails: How to detect HTML enabled cell phone?

We have found tremendous adoption success with using the "Subscribe Others" feature in collab. Naturally this concept rubs many folks the wrong way because often the end users don't know why they are getting these emails or what they are expected to do with them.
To combat this problem I have been working on our email templates to include some brief FAQs at the bottom of the email that answer some of the basics: Why am I getting this email? How do I unsubscribe? etc
There is still one issue that I am trying to resolve: Within the HTML template, is it possible to identify HTML enabled email readers?
For example, I use a Blackberry 7250 which displays email in plaintext - when I get Collab emails they are LOADED with links to images and to the collab projects, and its frustrating to have to scroll through everything to find the meaningful stuff.
My goal is to hide all "ugly link content" to those users that don't have HTML enabled phones - but I DO want to show it to those folks with the latest and greatest phones that can support it - such as the Blackberry Storm.
Isolating browsers seems like it could be the way to go, but rather than coding on a per browser basis I was hoping to just be able to do some type of "if HTML enabled" check.
Any suggestions?
Also, if anyone is curious about how to adjust these templates feel free to ask here or email me at [email protected] and I can forward my basic manipulations.

It turns out that there is a content type called "multipart/alternative" which can be used in cases like this.
The content type allows you to essentially split up the content into a section for HTML and another for plain text.
In looking at the notification templates, there are 2 for each "event". One for HTML and the other for plain text but I assume this is dependent upon the user Account Setting HTML/Plain Text and not fed into a higher level template which is set for multipart/alternative, although I have a help desk ticket setup for clarification on this issue.
I played around with these content types and each time I crashed my notification service with a java.lang.NullPointerException.
I'm closer to giving up on this after reading the following paragraph:
"If email programs can recognize multipart/alternative content, they can probably also recognize HTML content.
If they can't read HTML, they probably can't read multipart content either, which means you're going to run into the same problems with sending HTML to folks with email programs who can't understand it.
For recipients who can read the HTML, you're sending along an extra large message with the text included for no reason." http://www.wilsonweb.com/wmt5/html-email-multi.htm
Joel Collins wrote:
1) you know users can select html or plain text notifications right? Its under my account.Right, but we want the email to determine it dynamically since our company uses Outlook we'd want them to get HTML when they are a desk, and plain text when they are on their cell phones.
Joel Collins wrote:
2) Would an easy solution be to just put the content of the email at the top and the links at the bottom?Definitely! I've already removed all of the images and some of the redundant links, and am trying to design a layout to add the remaining links either in a column right aligned or at the bottom.
Joel Collins wrote:
3) I think that detecting html or plain text reader may be hard / impossible.Yar, I think I'm 9/10 of the way to giving up on this:)

Applet can access or not cell phone browser??

Hi,
I developed a applet, that is working fine for all browsers. But i tried to access that applet in my cell phone that is show exception. Should i have to install jre one cell phone or in cell phone we cant access applet. My phone is java enabled.
Thanks and regards,
Amit.

But i tried to access that applet in my cell phone that is show exception. >Should i have to install jre one cell phone or in cell phone we cant access There is no phone JRE that I know of.
applet. My phone is java enabled.I have not seen a phone that ran Applets verbatim.
The java API that runs on all phones I have seen is usually MDIP/CLDC.
http://java.sun.com/javame/reference/apis.jsp#api
As such unless there is something that I don't know about,
Applets simply won't work on your phone.
(T)

Java micro cell phones?

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