google app engine - GAE get user age -

my app requires know user's age. better fetch user's google account prompt user.

i using users api google accounts

    userservice userservice = userservicefactory.getuserservice();     user user = userservice.getcurrentuser();     string email = user.getemail(); 

is there similar way can user's date of birth?

no because user not contain information.

see https://developers.google.com/appengine/docs/java/javadoc/com/google/appengine/api/users/user