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Possible Duplicate:
How to correctly install and troubleshoot Minecraft (Client)

I currently got Ubuntu 11.10 installed on my laptop. And yesterday, I got Java 7. Before I got java 7, my Minecraft worked 100%. But after getting Java 7, my minecraft stopped working. So can you guys PLEASE find a way for me to 100% remove Java 7 from my system and get java 6 back!!

Community
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Jakirul
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  • There's a section in the accepted answer in the duplicate question regarding troubleshooting issue that you should read. –  Feb 02 '13 at 16:55

1 Answers1

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If you don't need ORACLE Java, you can switch to Icedtea Open JDK. But to your problem: To completely uninstall a package just type into an terminal

sudo apt-get purge PACKAGENAME

in fact of Oracle java it's

sudo apt-get purge oracle-java7-installer

and then install jre6 again

sudo apt-get install openjdk-6-jdk

Are you sure, you have Oracle Java installed? Because from Ubuntu 10.10 the Oracle Java isn't a part of the package-sources anymore... Did you install it manually?

hnzlmnn
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  • I manually installed Java 7 not knowing it will stop me from using Minecraft. Ever since getting Java 7, it has installed Oracle Java 7 Runtime. And when I use OpenJDK 6 for minecraft, it won't work. Before java 7, the OpenJDK 6 worked for minecraft. Help me plz – Jakirul Feb 02 '13 at 16:46