LibreOffice Not starting after inst of theallation

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http://forums.fedoraforum.org – Hello friends, I recently installed libreoffice from the .tar file. It installaled correclty but when i click on any of the application of libreoffice(LibreOffice Writer), it doesnt start. Sometimes it shows that JavaRuntime Required.:confused: I read the same thing in the Readme File in the libreoffice .tar file. After installing libre office Now i installed Java too but still it Doesnt start.:blink::dis: Help me, in correcting this problem. OR mention the command to UNINSTALL the existing LibreOffice so that i reinstall it. Thank You. (HowTos)