static void Main(string[] args) { Portal me = new Portal(new SpaceBookSystem.MyOpenBook("Judith", "++++++++ Judith's OpenBook ++++++++", "+++++++++++++++++++++++++++++++++++")); me.Add("Hello world"); me.Add("Today I worked 18 hours"); Portal tom = new Portal(new SpaceBookSystem.MyOpenBook("Tom")); tom.Poke("Judith-1"); tom.SuperPoke("Judith-1", "hugged"); tom.Add("Judith-1", "Poor you"); tom.Add("Hey, I'm on OpenBook - it was so easy!"); Portal portal = new Portal(new SpaceBookSystem.MySpaceBook()); portal.Add("Hi"); Console.ReadLine(); }