For starters, you need to post the exact error message. I'm a long way from Memphis and my mind reading cap doesn't have a range anything like that...
Secondly, while you can install applications like that in linux it's generally best to leave it as a last resort. Use the package manager that comes with your distro is a much more sensible idea and one I'd like to recommend right now. Fedora uses Yum I believe, so look for that in your menu and use it to install Java and Netbeans, I'd imagine they'd both be in a repo somewhere but the beauty of a package manager is it's then not up to you to find where to download it from, it handles that for you.