static void Main(string[] args) { //constructor -> new Person personPaul = new Person(); //private //Console.WriteLine(personPaul._ssn); Console.WriteLine(personPaul.FirstName); //null //set personPaul.Age = 20; //set personPaul.FirstName = "Paul"; //set personPaul.LastName = "Fischer"; //personPaul.GenerateSSN(); -> private string descriptionPaul = personPaul.GetDescription(); Console.WriteLine($"Description for Paul: {descriptionPaul}"); //CONSTRUCTOR WITH PARAMETERS Person bob = new Person("Bob", "Peterson", 25); string descriptionBob = bob.GetDescription(); Console.WriteLine($"Description for Bob: {descriptionBob}"); //DEFAULT CONSTRUCTOR Product car = new Product(); car.Name = "BMW"; car.Price = 24566.7; car.Code = 123; Product pizza = new Product() { Code = 145, Price = 300, Name = "Margarita" }; pizza.Buy(200); Console.ReadLine(); }