Nested Class In C# And Interview Question On Nested Class

using System;
namespace NestedClassType {
    /*
         A type defined within a class or struct is called a nested type.
         NestedClass bydefault is private
    */
    public class OuterClass {
        //Default modifer is private
        public class NestedClass {
            internal void NestedClassMethod() {
                Console.WriteLine("Nested Class Application");
            }
        }
    }
    class OuterClassMain {
        public static void Main() {
            //Creating object of nested class
            OuterClass.NestedClass obj = new OuterClass.NestedClass();
            obj.NestedClassMethod();
            Console.ReadKey();
        }
    }
}