How to downgrade Oracle Java 7 to Java 6?

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http://askubuntu.com – I recently changed my Wubi install into a full install, which runs a lot smoother than Wubi. I had to re-install all my stuff, because I did it the lazy-man's way, and after reinstalling Java, I decided to use Oracle's build, as it's known to be more stable, and there's not a single Java program that breaks under Oracle's. But, now I find that certain programs, namely 3D ones, are having some big glitches, and I know for a fact these glitches are caused by Java 7 being not-so-Java 6-ish, as the same programs work fine under my Windows boot, which has Java 6 on it. There is some information t (HowTos)