Jimmy's Blog

*Root-ed Android is required

This guide will help you to install J2ME emulator on your Android (mine is Gingerbread).

Case 1 : You have CMW (ClockWorldMod) installed.

• Copy Jbed_cmw.zip to your phone (http://dl.dropbox.com/u/45924042/jbed/Jbed_cmw.zip)
• Go to CMW recovery mode
• Flash the zip

Case 2 : Manual (I haven’t tested it – Do it with your own risk :p )

• Copy Jbed.apk (http://dl.dropbox.com/u/45924042/jbed/Jbed.apk) to /system/app
• Copy libjbedvm.so (http://dl.dropbox.com/u/45924042/jbed/libjbedvm.so) to /system/lib
• Reboot your android

After success installation you will see application “java” it can scan your sdcard for JAD & JAR file.

Hurray…

One of the comment in JSON ME tutorial (http://jimmod.com/blog/2010/03/java-me-j2me-json-implementation-tutorialsample/) asking about how to parse this kind of JSON :

{\”api_status\”: \”OK\”,\”threads\”: [{\"tid\": \"2\",\"title\": \"First Title\" }, { \"tid\": \"4\", \"title\": \"this is 2nd Title\"}]}
 <a href="http://jimmod.com/blog/2011/09/java-me-j2me-json-implementation-for-array-object/#more-246" class="more-link">(continue reading...)</a>

It’s been a while since I write an article, personal and work have been taken my time much lately.

What I will write is not a new things, maybe a lot of article already write this kind of feature. But yesterday I see this kind of project request in freelancer.com so I decide to create a simple sample and write an article about it.

Java Mobile (J2ME) application have a capability to send or receive SMS, but the phone need to support JSR-120 (Wireless Messaging API – WMA 1.0) or JSR-205 (WMA 2.0)
How to check if the phone is supporting this? Easy way if the phone’s brand website. For example for Nokia E72 we can see the technical specifications at http://developer.nokia.com/Devices/Device_specifications/E72/
If your phone doesn’t have WMA library the application will prompt error (the error can be different from one phone to another)
(continue reading…)

I was really want to try LWUIT since several months ago. It’s look promising and it’s developed by SUN so I think every Java ME developer should take a look on this technology.
I’m also still new in LWUIT so there won’t be a lot that I can share for now, but at least I will show you a basic demonstration of how to use Form, Label, Command, and 3D Form transition (sound cool huh :p)

REQUIREMENT

What you need:

1. LWUIT
2. Eclipse Pulsa
3. Emulator like Sun WTK
4. Know basic Java ME programming (continue reading…)

JSON is one of the most popular format used for communicating between (Java ME) J2ME client and App Server. Strangely it’s hard to find JSON implementation sample in J2ME. So I decide to write a sample.

(continue reading…)