How to switch version of Java in Ubuntu

Had a little headache trying to change version of JDK back from 1.7 to 1.6, so here is the instruction:

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install update-java

Then type:

sudo update-java

… and you’ll see the window with versions of Java to switch to.

Voila.

P.S. To extend the list of available JDK’s download the version you need and extract it to¬†/usr/lib/jvm/

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