How to use a resource pack in minecraft? (1.6.2)?

I have it downloaded, ready to use, I unzipped it and everything. I have 2 now (zipped and unzipped) but I can't figure out how to use them, they aren't letting me choose them in minecraft options. Do I need Java to convert it? Because every video I've seen on how to use them they have java. Do I really need it

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