namespace BeispielAssoziation { internal class Program { static void Main(string[] args) { Class oop = new Class("OOP"); Class sql = new Class("SQL"); Room r1 = new Room("1"); Room r2 = new Room("2"); oop.SetRoom(r1); sql.SetRoom(r2); oop.PrintInfos(); sql.PrintInfos(); r1.PrintInfos(); r2.PrintInfos(); } } }