Good day. Hye I'm new in this area and i'm about to create a VF page that will create 4 columns in Page Layout.

I want to know what is the language being used in creating a Visualforce Page. Does it using Java, Javascript, HTML or etc etc? Can we randomly choose what sort of language to be used in the system? Or does we able to select which language that most preferable? Or does it only stick to only one language? And I would like if you could re-confirm me the way of doing it. 1) Need to embed the code in the Apex Classes 2) Go to the respective Object and select the Trigger section and embed another code to call the code in the Apex Classes * Am i in the right track?

Can someone please guide me on this..