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{{Ecl_activities|type=BlackBerry|type-repo=mobile-blackberry}} __NOTOC__
== Understanding the Java Application files ==
In order to build BlackBerry applications on Eclipse, one must understand the basic files and their roles:
* '''''alx''' Files''
The .alx file is the application descriptor that provides information about the application and the location of the application's .cod files.BB Eclipse plug-in automatically generates the file.
Example:
<source lang="xml">
<loader version="1.0">
<application id="BBLab">
<name >
</name>
<description >
</description>
<version > 0.0.1 </version>
<vendor > ECL500 Course </vendor>
<copyright >
Copyright (c) 2011
</copyright>
<fileset Java="1.52" _blackberryVersion="[6.0.0)">
<directory >
6.0.0
</directory>
<files >
BBLab.cod
</files>
</fileset>
</application>
</loader>
</source>
------
* '''.cod ''' Files''
A .cod file contains compiled and packaged application code.
The standalone application loader tool requires these files to install the BlackBerry Java Application.
The file is similar with a jar file, but has a proprietary format.
--------------
* '''''.jad''' Files''
When deploying BlackBerry applications to a device the BlackBerry Application Web Loader, BlackBerry browser, and BlackBerry App World use the .jad file, that is a simple text file. It contains information needed to verify the application files during the deployment process.
<source lang="xml">
Manifest-Version: 1.0
RIM-COD-Module-Name: BBLab
RIM-COD-Module-Dependencies: net_rim_cldc
MIDlet-Jar-Size: 12403
MIDlet-1: ,img/cs_logo.png,
RIM-COD-Creation-Time: 1298760710
MIDlet-Jar-URL: BBLab.jar
RIM-COD-URL: BBLab.cod
RIM-COD-SHA1: 73 cd f1 b7 b0 35 0c c3 a6 a5 42 53 5e 83 a1 e7 4c 02 7e d2
RIM-COD-Size: 6404
MicroEdition-Configuration: CLDC-1.1
MIDlet-Version: 0.0.1
MIDlet-Name: BBLab
MIDlet-Vendor: Vendor
MicroEdition-Profile: MIDP-2.0
RIM-MIDlet-Flags-1: 0
</source>
-------------
== Read Code from the BlackBerry Samples ==
