iphone - ios - 静的変数を宣言するには?

Question

次のように C# で宣言された静的変数:

private const string Host = "http://80dfgf7c22634nbbfb82339d46.cloudapp.net/";
private const string ServiceEndPoint = "DownloadService.svc/";
private const string ServiceBaseUrl = Host + ServiceEndPoint;
public static readonly string RegisteredCourse = ServiceBaseUrl + "RegisteredCourses";
public static readonly string AvailableCourses = ServiceBaseUrl + "Courses";
public static readonly string Register = ServiceBaseUrl + "Register?course={0}";

この静的変数を別のクラスで呼び出す方法は?