[SOLVED] need help installing .rpm the EASY way

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http://ubuntuforums.org – hello. to start off i am new at linux. my goal is to install oracle sun java, the one from javas website. no i do not want to install the free jdk penguin java from the software center because that doesnt run the files i would like to run. i was sent to go install ''sun java'' i went to the website and i downloaded a small file that was packaged as a ''tarball'' (tar.gz) i also downloaded the .rpm file aswell, why not try both. now i have both files and i can explore them as if they were zip files but i have no clue how to install them. i went to google and i must have gone to atleast a doze (Hardware)