how to install the rpm package jdk-7u9-linux-i586.rpm?

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http://askubuntu.com – i download the jdk-7u9-linux-i586.rpm (not the rpm.bin) i use code rpm -ivh jdk-7u9-linux-i586.rpm but it cannot install it succesfully, why?? i use google to search the anwser, but they all about how to install a "bin" file, not the "rpm" i download at the java.com its file is the "rpm", not the "XXX.rpm.bin" now i have no idea about this , i need your help, many tks,bro (HowTos)