Hello i’m planning to create an application on google app engine, the application will provide the details of the employees attendance and their salary.
I’m going to use java for that, but i want to know is that idea possible on google apps ?
And another thing what kind of database i am going to use with google app ?
To answer your question, of course this is possible with Java (and Python, and Go, if need be).
As for the database, App Engine uses a custom High Replication datastore that automatically takes care of replicating your data across multiple datacenters.
If you haven’t already done so, have a look through the costs associated with App Engine, factor in how much you plan to scale your app and then decide if it’s worth it to you.