static void Main(string[] args) { Student obj = new Student(1, "sdsd", "2/23/2016", "pune"); Console.WriteLine("Details " + obj.getDetails()); Console.WriteLine("Age " + obj.getAge()); Employee obj1 = new Employee(1, "abc", 1200.5, "12/20/2018"); Console.WriteLine("Salary " + obj1.getSalary(42)); Console.WriteLine("Experiance " + obj1.getExperiance()); Product obj2 = new Product(); Console.WriteLine(obj2.getProduct()); Book obj3 = new Book(2, "Harry Potter", 200, "J K ROwling"); Console.WriteLine(obj3.getDetails()); Console.ReadKey(); Environment.Exit(1); }