how to access and print the dwg files in java

There is any java api available for accessing and printing dwg file in our application.

Thanks in advance

Please TellTheDetails. Where do these "dwg files" come from? Are these from AutoCAD (first hit on Google), or somewhere else?

Anyway, did you try using Google?
java dwg viewer
java dwg api
java dwg library

thanks for your reply. here dwg come from Autocad. In Java web application need to access the dwg autocad file and also pass to printer. I able get results only dwg viewer in java when searched on the web. what i needed is using java api in the application

And you really found absolutely nothing on Google? Not even with the links I provided?

Autocad is a niche file format; I wouldn't be surprised if there's no comprehensive 3rd party API for working with it. Doesn't Autodesk provide an SDK?