Next time you create the oauthClient you use those four strings
instead of the authorization code.
Basically, the authorization code can only be used once, after which
your oauthClient will have a token key you can save for future use.
I hope that helps.
I have made an app that uses JTwitter and OAuth to retweet specific
tweets from people, you can take a look at
http://github.com/dobesv/retweetster it might serve as a useful
example.
Cheers,
Dobes
Ah that get access token thing seems like a major time saver. Thanks for sharing that.