Try this link to tell you if you have java installed. Once for each browser.
http://www.java.com/en/download/testjava.jsp
There also should be a Java Control Panel in your Windows Control Panel if Java is installed.
Looks like I never had it installed. I run the Noscript add-on through Firefox in any event, and Chrome says Java isn’t present.
My search bar finds “Java Jive” by Manhattan Transfer in my iTunes but that’s about it.
Many thanks!