My Eclipse environment is set up... I want to be able to run my code on an object and get system outs in the console so I can rapidly iterate the code with out having to plug it into my expression robot and create new PR objects to test.
You have several options how to run your code.
From Windchill shell call a java class (windchill wt.load.util.UpdateEditDTDUtility)
From WebBrowser to call a java class with RemoteAccess (http://server.my.com/Windchill/servlet/WindchillAuthGW/com.ex.JavaPackange/MyMethod)
or create button in windchill to call a java class method
PS: very useful is a Customization Guide