This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
1) Web application - contextRoot will give it to you
2) An application inside app server - find it from the application context.
3) A single class java application - this.getClass().getName()
4) A multiclass java app which doesnt fall into any of the above categories - god help you !!!