Remove EditorWindow Warning

Unity Engine
1

I want to extend the functionality of unity editor, so I just follow the rules of the documentation:

public class HelloWorldWindow : EditorWindow
{
    string    myString = "Hello World";
    bool    groupEnabled;
    bool    myBool = true;
    float    myFloat = 1.23f;

    [MenuItem ("Window/HelloWorld")]

    static void Init()
    {
        HelloWorldWindow window = (HelloWorldWindow)EditorWindow.GetWindow(typeof(HelloWorldWindow));
    }

    void OnGUI()
    {
        ...
    }
}

After editing this C# class, I got my new class file compiled, yet I got a warning from the compiler:
“warning CS0219: The variable `window’ is assigned but its value is never used”

So is there anybody know how to get rid of this warning?

Since I’m new to C# (I used to use C++), this piece of code seems magic to me, because I can see the variable “window” be used nowhere, could anybody please explain how this window guy works behind the scene?

2 
    static void Init()
    {
        HelloWorldWindow window = (HelloWorldWindow)EditorWindow.GetWindow(typeof(HelloWorldWindow));
    }

Right there

3

Thanks, Nubz. I figured out that I can replace that line of code to

EditorWindow.GetWindow(typeof(HelloWorldWindow));

So actually Unity3D does not use the variable “window” that I declared in Init() method.