I used Twitter4J to write a "simple tweet scheduler". Twitter4J seems like an easier application. Here is the source code on using Twitter4J using  OAuth.<p><a href="http://code.google.com/p/twitteybot/source/browse/trunk/src/com/appspot/twitteybot/ui/TwitterAccountManager.java" rel="nofollow">http://code.google.com/p/twitteybot/source/browse/trunk/src/...</a><p>You can check out the application at <a href="http://time2tweet.appspot.com" rel="nofollow">http://time2tweet.appspot.com</a>