So I have a school computer, this one is just a substitute my school gave me because my other one is getting fixed. I put my techniclauncher.jar file in a USB so I can transfer it on the loner and play minecraft. Well now its on the loner but it says this when I try to open it.
"To use the "Java -jar TechnicLauncher.jar" command line tool you need to install a JDK" this thing is, I can't download the JDK because I have a school computer and I can't download anything on a school computer. How do I get this jar file to open with a JDK?
Added (1). I have a folder that apparently is a java folder called "jre-x64" what can I do with this? I got this folder from my windows computer that my brother use to get the techniclauncher over to my mac.