Hi .. ofcourse u can go to the documentation for a detailed description but simply if u need to deploy u can go to <install-dir>/domain/<your-domain>/autodeploy and put ur helloWorld.war file (for example) in this folder. I dont remember if u need to restart the server or just wait a few minutes.
In any case if it is successfully deployed another file would be created something like.. helloWorld.war_deployed or helloWorld.war_undeployed.
and u would know if it was successfuly deployed..
u can then go to
http://localhost ort
Hope this helps..
Saniya