javax.crypto: Can anyone create a simple encryption class?

[InsDel]

I am doing a science project comparing how different ciphers withstand bit flipping/removal.
The files will be corrupted separately (by me with a hex editor), so don't include any checksums or anything similar.

Could anyone make a class that uses javax.crypto to encrypt a file using AES, DES, and Blowfish such that it can be executed by a command like

java crypt (AES|Blowfish|DES) (encrypt|decrypt) key fileIn fileOut

Please try to keep it in a single .java file.
(I'd like to be able to see the source.)

[shyam]

you want fries with that too?