I am trying to obtain an OAuth token.

I see that there is some Java code on http://www.salesforce.com/us/developer/docs/api_rest/Content/quickstart_oauth.htm, but it is not very useful. Is this a web app? A command line app? What packages are being imported? There are some variables put into the initParams array, but this array is never used as far as I can tell. Can this app be downloaded from somewhere?