Is it possible to implement different API in android to create an android app?

for example, there's an API called JYMSG. it is bassically written in java. could I use this in android in order to create an application based on the two APIs? thanks in advance.

Maybe, maybe not! Just try.

Google's own Gdata API for picasa, gmail, spreadsheat and so on don't want to cooperate with android. But I can use other APIs like metadataextractor without any problems.

If it doesn't work as it is, you can try the retrotranslator: http://retrotranslator.sourceforge.net/#android