How to install 64-bit JAVA for minecraft?

Please help me on this, I have the link from youtubers showing how to install it. I always click on the link and it gives 2 Windows options.

Windows Online
filesize: 899 KB

Windows Offline
filesize: 27.7 MB

Everyone on youtube goes to the link and has the option 64-bit but I don't!

Here is the link to the website. Please help me.
http://www.java.com/...manual.jsp" class='ext_link'>http://www.java.com/...manual.jsp" class='ext_link'>http://www.java.com/...manual.jsp" class='ext_link'>http://www.java.com/...manual.jsp" class='ext_link'>http://www.java.com/...manual.jsp
http://www.java.com/en/download/manual.jsp
http://www.java.com/en/download/manual.jsp
http://www.java.com/en/download/manual.jsp

Also, I'm trying to add more ram to minecraft.

http://www.java.com/en/download/manual.jsp

Download the Windows Offline (64 Bit) and the Online (32 Bit). Apps like minecraft will automatically use the 64 Bit one but not all apps can use 64 Bit. Also make sure you PC is 64 bit capable otherwise the option won't show up.

Now best way with cool hd wallpapers