static void Main(string[] args) { CCar car1 = new CCar(200, 15000, 2012, new Point2D(3, 3)); CCar car2 = new CCar(180, 12000, 2009, new Point2D(4, 4)); CCar car3 = new CCar(220, 21000, 2015, new Point2D(5, 8)); CShip ship1 = new CShip(35, 100000, 2000, 90, "Odessa", new Point2D(1, 6)); CShip ship2 = new CShip(33, 92000, 1995, 110, "Porto", new Point2D(15, 7)); CShip ship3 = new CShip(38, 70000, 2010, 30, "Marcel", new Point2D(12, 4)); CPlane plane1 = new CPlane(700, 330000, 2007, 50, new Point3D(1, 4, 13)); CPlane plane2 = new CPlane(1200, 400000, 2016, 15, new Point3D(8, 2, 9)); CPlane plane3 = new CPlane(600, 370000, 2012, 85, new Point3D(23, 5, 14)); CVehicle[] vehicles = new CVehicle[9]; vehicles[0] = car1; vehicles[1] = car2; vehicles[2] = car3; vehicles[3] = ship1; vehicles[4] = ship2; vehicles[5] = ship3; vehicles[6] = plane1; vehicles[7] = plane2; vehicles[8] = plane3; Console.WriteLine("Hello, please, choise an option of sorting vehicles:"); Console.WriteLine("1. by max speed"); Console.WriteLine("2. by max price"); Console.WriteLine("3. by max release year"); int userChoise = 0; while ((userChoise < 1) || (userChoise > 3)) { Console.WriteLine(Environment.NewLine + "Please, choose option from 1 to 3:"); String userOutput = Console.ReadLine(); while (!int.TryParse(userOutput, out userChoise)) { Console.WriteLine(Environment.NewLine + "Not a valid integer, please, choose option from 1 to 3 once again..."); userOutput = Console.ReadLine(); } } switch (userChoise) { case 1: vehicles = CVehicleSorter.SortMaxSpeed(vehicles); Console.WriteLine(Environment.NewLine + "CVehicles sorted by max speed:"); break; case 2: vehicles = CVehicleSorter.SortMaxPrice(vehicles); Console.WriteLine(Environment.NewLine + "CVehicles sorted by max price:"); break; case 3: vehicles = CVehicleSorter.SortMaxReleaseYear(vehicles); Console.WriteLine(Environment.NewLine + "CVehicles sorted by max release year:"); break; default: Console.WriteLine(Environment.NewLine + "Unsorted list of CVehicles"); break; } CVehicleSorter.PrintVehicles(vehicles); }