static void Main(string[] args) { List <Person> People = new List <Person>(); Person Person1 = new Person(); Person Person2 = new Person(); Person Person3 = new Person(); Person Person4 = new Person(); Person Person5 = new Person(); Person addon = new Person(); Person1 = Person1.Addto(0, 0); Person2 = Person1.Addto(1, 1); Person3 = Person1.Addto(2, 0); Person4 = Person1.Addto(3, 1); Person5 = Person1.Addto(4, 1); People.Add(Person1); People.Add(Person2); People.Add(Person3); People.Add(Person4); People.Add(Person5); int CurrentYear = 2018; int howm = 0; int AgeofAll = 0; int men = 0; int woman = 0; int other = 0; for (int i = 0; i < People.Count; i++) { Console.WriteLine("Name: " + People[i].Name); Console.WriteLine("Last name: " + People[i].LastName); Console.WriteLine("Year of birth: " + People[i].Bdate); Console.WriteLine("Gender: " + People[i].Gender); if (People[i].Alive == true) { Console.WriteLine("Status: Alive"); } else { Console.WriteLine("Status: Dead"); } Console.WriteLine(); AgeofAll = AgeofAll + (CurrentYear - People[i].Bdate); howm++; if (People[i].Gender == "Man") { men++; } else if (People[i].Gender == "Woman") { woman++; } else { other++; } } Console.WriteLine("Average age: " + (AgeofAll / howm)); Console.WriteLine("Men: " + men); Console.WriteLine("Women: " + woman); Console.WriteLine("Other: " + other); }