Hi. I'm using the struts framework to implement a registration system for a University. Is there any way to force a browser refresh when, for example, the number of slots remaining in a class changes? Any help would be greatly appreciated. Thanks.
No. HTTP can't "push", only respond to "pull" requests. About as close as you can get would be to setup a page that has a periodic refresh. Somebody trying to use a page to sign up for courses would find that rather intrusive, however; their data input would be disrupted. If you're thinking about a public display (something like airport flight monitors), then a periodic refresh should be OK.
"privilege" comes from the Latin words for "private" and "law" (legal) and dates to feudal times. To "claim privilege" meant that you were above the laws that applied to the common people.