Solved

Is it possible to backup J2ME data to a PC?

Posted on 2007-03-24
13
318 Views
Last Modified: 2013-11-24
Hi, I'd like to write a Tasks (ToDo) application that will run on any Java enabled phone. I've seen such apps, but there's no way to back up your data. Then you'd be better off using pen and paper :-)

Is there a way of to write a J2ME app that will allow you to backup to / sync with a PC?

Either via USB-cable or bluetoth. Or else?
0
Comment
Question by:davidsperling
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 7
  • 6
13 Comments
 
LVL 30

Expert Comment

by:Mayank S
ID: 18785729
You can sync up data by sending it over sockets to a program runing and listening on the PC, which can put it into files on the desktop. Otherwise the J2ME app itself can write to files on the PDA. For synching operations without using such code, you might have to use something specific to each platform depending on the configuration/ profile of J2ME like Java Conduit Development Kit for Palm/ CLDC:

http://www.ociweb.com/jnb/archive/jnbJan2001.html
0
 
LVL 4

Author Comment

by:davidsperling
ID: 18788948
That sounds great! Can you show me some example of socket programming? Is it included in Netbeans. I'm familiar with  the term, but never used it.
0
 
LVL 4

Author Comment

by:davidsperling
ID: 18788966
Do you seriously mean that you can write a PC "listener" that would work with ANY java phone? Sounds almost too good to be true... why hasn't anybody done that?
(ok someone probably has ;-)
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 4

Author Comment

by:davidsperling
ID: 18789024
And since the listener is written in Java it will also work on Mac & Linux, right? :-)
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 18789036
Yes but that assumes you would be transferring data over WiFi.

Sample server socket listener would be like what is posted in my comment here:

http://www.experts-exchange.com/Programming/Languages/Java/Q_21757720.html#16084277
0
 
LVL 4

Author Comment

by:davidsperling
ID: 18789069
Ok, so it's not possible to sync by usb or bluetoth like nokia's or samsung's pc-studios?
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 18789078
Oh yes it is possible to sync up over USB too :) I meant its not over GSM/ CDMA....
0
 
LVL 4

Author Comment

by:davidsperling
ID: 18792050
Do you know of any mobile java apps with that capability?
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 18796771
GSM or USB?
0
 
LVL 4

Author Comment

by:davidsperling
ID: 18798504
USB! I want the solution to be independent of any service provider.
(Of course gsm examples'd be nice too)
0
 
LVL 30

Accepted Solution

by:
Mayank S earned 250 total points
ID: 18802833
I've synched up data using TCP/ IP over USB b/w a PDA and a desktop - could write applications to communicate between them through sockets using .NET compact framework, so I guess in J2ME it would be the same.
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 18840870
Any reason for the C grade? You can ask for more clarification if you want. We all post here for free, in our leisure time.
0
 
LVL 4

Author Comment

by:davidsperling
ID: 18841771
Oh, sorry. Didn't know that c was bad. It said average... I'm greatful for the help! Reason for no a - I don't think the question is 100% answered. You say it's possible with a PDA, which I do not doubt. The question was wether it's possible with any java enabled non-smart phone (with usb of course). Lesson learned, c is an insult... Shame on me :-)
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question