static void Main(string[] args) { Practiser practiser1 = new Practiser("Nadinka", 19, "female"); Practiser practiser2 = new Practiser("Yehor", 18, "male"); TeacherStaff teacherStaff = new TeacherStaff(practiser1); SchoolWorkerStaff schoolWorker = new SchoolWorkerStaff(practiser2); practiser1.Practice(); practiser2.Practice(); Student [] students = new Student[5]; students[0] = new Student("Olya", "Resop", "female", 14, "I I/M", 8); students[1] = new Student("Kolya", "Resop", "female", 14, "I I/M", 12); students[2] = new Student("Nadia", "Resop", "female", 14, "I I/M", 2); students[3] = new Student("Yehor", "Resop", "female", 14, "I I/M", 1); Console.WriteLine("\nStudent ration: \n"); students[0].Ration(); Array.Sort(students); FoodCollection <string> foodCollection = new FoodCollection <string>(); foodCollection.Add("lobster"); foodCollection.Add("varenuki"); foodCollection.Add("fish"); foodCollection.Remove(0); foodCollection.Menu(); Console.WriteLine(foodCollection["fish"]); foreach (string s in foodCollection) { Console.WriteLine("Value: {0}", s); } IEnumerator <string> iEnumeratorOfString = foodCollection.GetEnumerator(); while (iEnumeratorOfString.MoveNext()) { Console.WriteLine(iEnumeratorOfString.Current); } Serialization.XmlSerialization(students); Serialization.XmlDeserialization(students); Serialization.JsonSerialization(practiser1, "data.json"); Serialization.JsonDeserialization(practiser1, "data.json"); }