How to run Minecraft if it keeps opening adobe?

Ok, so I have minecraft downloaded, at first I tried to run the.jar file, but it wouldn't run because it didn't have the 'Java' thing. (I tried other programs until I figured it out) I downloaded it and now every time I try to run it, the program I tried to use (Adobe Flash reader) opens and says that it can't open the file. SO, how the heck can I run it if it keeps doing this?