I'm looking at a minecraft mod and it has this code 

 Minecraft mc = Minecraft.getMinecraft();
public ConfigUtils() {
        this.ye = new File(mc.gameDir + File.separator + "ye");
        if (!this.ye.exists()) {
            this.ye.mkdirs();
        }

And when im trynna code something similair, i cant find the gameDir settings in mc

1. You are on the wrong forum; see the `Modder Support` sub-forum.
2. Please state what version of Minecraft you are coding for when posting.
3. Please post the relevant code that you've written when asking for support.
4. Generally, we discourage copy-pasting code from mods or following video tutorials, as they are most likely outdated or using a discourage coding practice. A good recommendation for a recent, good tutorial series is by McJty, the modder for RFTools.