public static void Main()
{
System.Console.WriteLine("DemoClass");
OuterClass oc = new OuterClass();
OuterClass.NestedClass reference = oc.CreateObjectOfNestedClass();
}
internal static void NestedClass()
{
//throw new NotImplementedException();
new OuterClass().Execute();
// ALL CLASS MEMBERS ARE PRIVATE BY DEFAULT.
//NestedClass nested = new NestedClass();
OuterClass outer = new OuterClass();
// MUST FULLY QUALIFY FROM OUTER TO ACCESS NESTED.
OuterClass.NestedClass nested = outer.CreateObjectOfNestedClass();
nested.Execute();
}