Can I run .jar file on Tomcat?

Question

a very noob question. Can I run a .jar file on Tomcat. I am not building a web-app. I simply need to run a .jar with say HalloWorld in it. Is this possible/appropriate.

Answer 1

You can run a Java archive without Tomcat, simply with a Java Runtime Environment:

$ java -jar myhelloworldapp.jar

Tomcat is a servlet container, only needed for web applications.