I tried to install minecraft on my computer, but it won't display on-screen. I went to https://www.minecraft.net/download and downloaded the jar file. I put the launcher on the desktop and tried to run it. It did not download minecraft. I can see the Java icon on the program bar, but it doesn't show on-screen.
Note: I have set the permissions to allow it to run as executable.
Another note: I have checked and it does create a .minecraft folder, but a lot of the minecraft files simply aren't there.