Is it possible to get Java on Chromebook?

I have Lenovo Thinkpad Yoga 11e.
Firefox says I need to upgrade Java. I clicked on their link, but I didn't know which one to choose from!
Meanwhile, I've been able to update Adobe Player, and this is offering choices, but I don't really know what Chromebook OS "is" ---- is it a type of Windows?

Be careful---There is a current virus that highjacks the browser by displaying a pop up that says you need to update java. There's also a bad site or two that offers Adobe updates. Go to only official update sites and never click a pop up to get updates and YES, Chromebook is a type of notebook and it uses Chromebook O.S.

No.