I had a class assignment that required the use of Java to complete (I had to build a web page with a java applet on it). Unfortunately Java does not run on Chromebooks. So I powered up my Windows machine to do the work I needed. Unfortunately I never got to it. My Windows machine was so slow and full of bugs I couldn't even get a browser to work right. I ended up having to re-install Windows. Since that takes a few hours on the machine I have, I will have to find another way to do my assignment (since it is due soon).
Though I would love to have Java on my Chromebook, I am glad I don't. Why? Because of what happened to my Windows 8 machine. The machine was so full of bugs and problems that I had to start from scratch with it. In the two years I have been using Chromebooks (I am on my second one now) I have never had any of the problems I have had with my Windows machine. I have had no viruses. I have had no crashes. I have had no issues when I boot up. I have so speed problems. In fact, I am writing right now on my Chromebook as my Windows machine is re-installing the operating system!
So, though I would like to have Java, I love my Chromebook so much more the way it is. I would rather not have any problems and live without Java (and anything else I can't do), than live with the mess Windows (and sometimes Mac) ends up being.