Gameobject variable on C#

Just a really quick question over how I would write a gameobject place holder in C#. I am pretty much only java but for this certain small project I am using c# just to experiment. Anyway so in JS my variable looks like this. Camera1 : GameObject; So how would I convert that so it works in C#?

GameObject Camera1;

stick public before it if you want to assign in the editor.