If you didn't install Java there will be no updates for it in Software Update.
Read the following to determine if your system is affected by this particular malware:
This Java patch does not appear when I click on software update. It isn't on my list of recent updates either. Could the virus block the patch?
It is more likely that you don't even have Java installed.
If you don't see anything that looks like this:
then you don't have Java and you are fine.
My email account was attacked on Wednesday so I assume my laptop is infected.
In what way? Usually people just mistake forged return addresses for some kind of malware infection. A forged return address is just standard SPAM behaviour. It is fairly common for people to use easy-to-guess password on web-based e-mail systems like gmail and get their e-mail account hacked. That has nothing to do with your laptop.
My email account contacted everyone in my address book. All of the emails contained a single link but from what I've heard, the links are all different. I know 5 other people who have had this same issue in the last few months but all are on PCs and I've assumed they picked up a virus somewhere. My email password isn't a word or my address or birthday or anything that's easy-to-guess. Any thoughts?