y'can't use Java to access Access
you can use MS Access to create a front end for virtually any datastorage mechansim...
whether thats other applications like Excel, flat files,
other PC db's (including Filemaker, dBase, JET (what many people mistakenly call Access
server backends like MS SQL, Oracel, IBM, MySQL or whatever..
if there is an ODBC driver for it then you can use the datastorage in MS Access
so if you have a copy of MS Access then you will be able to crearte an Access fornt end to virtually anything you care to sling at Access.
if you want tutorial try MSDN or even Google
if you want to develop seriously in Access get a decent text such as Access developer handbook
otherwise do what most Access newbies do and dive into Access and satrt designing 'stuff'.. its no bad thing to do that, especially if you also look at the Northwind traders db that comes with most Access installations. hwoever I would strongly advise against just diving in if you intend on relying on that design for use in live code. Access is easy to pick up, but like lots of easy to pick up tools its easy to pick up bad habits which can be a problem to design out afterwards.
not least of Access vices is the temptations to design the tables/entities as you go along
another 'gotcha' is the seductive pull of using bound forms and controls.. never a good idea unless the app is designed for a very limited number of users
I'd rather be riding on the Tiger 800 or the Norton