private static void InheritanceScenario()
{
Student andy = new Student(
"Andy",
"Wyatt",
new DateTime(2005, 7, 9));
andy.HeightInCM = 120.0;
Student dave = new Student(
"Dave",
"Newbold",
new DateTime(2005, 1, 1));
dave.HeightInCM = 20.0;
Student carl = new Student(
"Carl",
"Newton",
new DateTime(1995, 1, 2));
carl.IsEnrolled = true;
Console.WriteLine(andy.Forename + " " + andy.Surname + " " + andy.IsEnrolled);
Console.WriteLine(dave.Forename + " " + dave.Surname + " " + dave.IsEnrolled);
Console.WriteLine(carl.Forename + " " + carl.Surname + " " + carl.IsEnrolled);
Lectuer andy2 = new Lectuer("Andy", "Wyatt", new DateTime(1980, 8, 2), 10.0m);
Console.WriteLine(andy2.Forename + " " + andy2.Surname + " " + andy2.Salery);
andy2.HeightInCM = 100.0;
andy.HeightInCM = 80.0;
}
private static void PolymorphismScenario()
{
Person[] people = new Person[]
{
new Person("Dorris", "Jones", DateTime.Now.AddYears(-120)),
new Student("Oliver", "Bond", DateTime.Now.AddYears(-17)),
new Student("Kyle", "Fardoe-Walker", DateTime.Now.AddYears(-18)),
new Lectuer("Andy", "Wyatt", DateTime.Now.AddYears(-37), 20000.00m),
new Lectuer("Jacqui", "Maw", DateTime.Now.AddYears(-45), 21000.00m)
};
foreach (Person person in people)
{
if (person is Lectuer)
{
Console.WriteLine("I'm a teacher");
Lectuer lecturer = person as Lectuer; // Preferred
lecturer = (Lectuer)person; // Unpreferred
lecturer.Teach();
}
else if (person is Student)
{
Console.WriteLine("I'm a student");
Student student = person as Student;
student.DoGroupWork(null);
}
Console.WriteLine(person.Forename + " " + person.Surname);
person.DoWork();
Console.WriteLine();
}
}