This week's book giveaway is in the Other Open Source APIs forum. We're giving away four copies of Storm Applied and have Sean Allen, Peter Pathirana & Matthew Jankowski on-line! See this thread for details.
What do you mean with "the java option for tomcat"? Do you mean which JRE should be used to run Tomcat? See: Window / Preferences / Server / Runtime Environments, select your Tomcat server runtime, click Edit, and select which JRE to use.