Replacing the OpenJDK with the Oracle JDK

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http://askubuntu.com – I've had the archive file for Oracle's JDK for some time and have been running java applications through ~/Downloads/jdk1.7.0/bin/java -jar for some time, but I'm wondering if there's an actual way to "install" the JDK without running through the fiasco with apt-get that I ran into with a previous installation. Also, can I point IcedTea's Applet launcher to the Oracle VM vs the OpenJDK one? (HowTos)