I was going to post this last week but forgot about it. Java which is platform used for many things had a very large exploit available. They just patched it but there is apparently another exploit in the wild.
Java is not used on this site and most other sites don't use it. I haven't installed it on my current machine, simply no reason too yet. After considering it I'm not going to install it unless absolutely necessary. If you want uninstall this from your system you have to do it from the control panel and that's what I would recommend. Some sites or even applications on your computer may require this but you'll know it if you need it after you uninstall it. Weigh the risks and benefits. If you don't need it, don't reinstall it. It wouldn't surprise me if most people found out they don't need it at all.