a. appName.cod (appName1.cod, appName2.cod, ...)
b. appName.jad
c. appName.alx
d. .htaccess (required for OTA)
An application can be intalled in the real device in two ways.
a. OTA (Over The Air)
b. Connecting your device with the PC
b1. Using Javaloader
b2. Using Desktop Manager
OTA Installation Process
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Check this link.
Connecting your device with the PC
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1. First Connect your device through USB.
2. Sign the cod file if required
3. Then you can install your application in the following ways:
a. Using javaloader:
i. Goto the JDE bin directory(ex: C:\Program Files\Research In Motion\BlackBerry JDE 4.6.0\bin\).
ii. copy your cod and jad file there.
iii. execute the following command from there (you can create a batch file (*.bat) and just click will do )
javaloader -usb load applicationName.jad
or
javaloader -usb load applicationName.cod
b. Using Desktop Manager:
i. Install destop manager
ii. place *.alx and *.cod file in the same directory
iii.select your *.alx file from desktop manager.
iv.Then it should start installing the application in the device.
Also check out these videos from Developer Video Library.