1. package them into a WAR - look on the web if you don't know what a WAR is.
2. If you have EJBs to deploy with the webapp, package these into a JAR and put the WAR and JAR into an EAR - once again, you'll find stuff on the web about this.
3. Either: copy the EAR or WAR into jboss/deploy or hit http:localhost:8082, find the J2EEDeployer entry and call it's deploy method with file:/your-WAR-or_EAR-here
(You'll need JBoss running at this stage).