Minecraft setup on MacBook Pro 13 2.4 ghz?

So I'm getting a MacBook Pro 13" 2.4 ghz and I'm going to buy minecraft on it. I was wondering that how do I install it like I heard it needed java or something so will I have to download that first or will the Mac come with all the requirements and all I have to do is download the Mac version on minecraft.net?
Please DON'T RECOMMEND/TALK ABOUT OTHER LAPTOPS
thanks in advance.

Added (1). Let me rephrase, thank you very much.

Do you need to download and install java before you download/play minecraft or is the MacBook already come with a built in program like java therefore you won't need to install java?

I'm aware that on minecraft.net you can also download a Mac version therefore do I just directly download it (Mac version) or will I still have to install other programs (java and whatnot) to be able to run minecraft on my MacBook (for the Mac version download)

Sorry if it's a bit confusing for some