i am a final year student.. planning to do an android application for my final year project. I plan to do an attendance management system app for lecturers, where i plan to conn
Your best bet may be to obtain a Motorola Atrix (the first version, which includes a fingerprint reader and an SDK to use it) or some other phone with the reader built-in (there may be some available now but I'm not certain).
If your only options are to use a USB-attached reader you will need to find hardware that has enough power to drive it as well as an SDK that can communicate with the sensor on Android via USB.
I would start here if you don't know much about making apps for android.
http://developer.android.com/training/index.html
And the SDK is here, I use the plugins for eclipse which sets up everything into a nice android project for you.
http://developer.android.com/sdk/index.html
I think the best bet for you is neurotechnology embedded SDK for android. The SDK can actually achieve what you want to do. Goto Their Site Here