//----------
public static void Main()
{
// notice this is simple polymorphism because
// we are creating an array of base class objects
// and filling it with derived class objects
// i.e. we have derived class objects masquerading as
// base class objects
// have I explained how there is no such thing as a generic dog?
Employee [] employees = new Employee[5];
employees[0] = new FullTimeEmployee();
employees[1] = new PartTimeEmployee();
employees[2] = new TemporaryEmployee();
employees[3] = new InternEmployee();
// employee class is now abstract...
// so we cannot instantiate an object from it
// it gives us a compile-time error
// employees[4] = new Employee();
// loop throught array of base class objects and
// call member methods that give evidence of execution
foreach (Employee e in employees)
{
if (e == null)
{
continue;
}
e.PrintFullName();
}
}
public static void Main()
{
// Instantitated a list of type Employee with a size of 5.
Employee[] employees = new Employee[5];
// Instantiated a FullTimeEmployee and
// assigned it to the first item of employees list.
employees[0] = new FullTimeEmployee();
// Modified FirstName and LastName using properties.
employees[0].FirstName = "Dan";
employees[0].LastName = "Bahrt";
employees[1] = new PartTimeEmployee();
employees[1].FirstName = "Ted";
employees[1].LastName = "Kim";
employees[2] = new TemporaryEmployee();
employees[2].FirstName = "Snoop";
employees[2].LastName = "Dogg";
employees[3] = new InternEmployee();
employees[3].FirstName = "John";
employees[3].LastName = "Doe";
// Did not change FirstName or LastName.
// Using default FirstName and LastName.
employees[4] = new Employee();
// Calls overridden PrintFullName methods from each derived classes.
foreach (Employee e in employees)
{
e.PrintFullName();
}
}
public static void Main()
{
Employee[] employees = new Employee[5];
employees[0] = new FullTimeEmployee();
employees[1] = new PartTimeEmployee();
employees[2] = new TemporaryEmployee();
employees[3] = new InternEmployee();
employees[4] = new Employee();
foreach (Employee e in employees)
{
e.PrintFullName();
}
}
public static void Main()
{
// instantiate objects and shove reference pointers into
// array of base class objects.
Employee[] employees = new Employee[5];
employees[0] = new FullTimeEmployee();
employees[1] = new PartTimeEmployee();
employees[2] = new TemporaryEmployee();
employees[3] = new InternEmployee();
employees[4] = new Employee();
//PrintFullName for everything in the employees array
foreach (Employee e in employees)
{
e.PrintFullName();
}
}
//----------
public static void Main()
{
// instantiate objects and shove reference pointers into
// array of base class objects.
Employee [] employees = new Employee[5];
employees[0] = new FullTimeEmployee();
employees[1] = new PartTimeEmployee();
employees[2] = new TemporaryEmployee();
employees[3] = new InternEmployee();
employees[4] = new Employee();
// loop through array of base class objects and
// call member methods that give evidence of execution.
foreach (Employee e in employees)
{
e.PrintFullName();
}
}
//----------
public static void Main()
{
// notice this is simple polymorphism because
// we are creating an array of base class objects
// and filling it with derived class objects
Employee [] employees = new Employee[5];
// dynamic runtime polymorphic mapping
employees[0] = new FullTimeEmployee();
employees[1] = new PartTimeEmployee();
employees[2] = new TemporaryEmployee();
employees[3] = new InternEmployee();
employees[4] = new Employee();
// loop through array of base class objects and
// call member methods that give evidence of execution
foreach (Employee e in employees)
{
e.PrintFullName();
}
}
//----------
public static void Main()
{
Employee[] employees = new Employee[5];
employees[0] = new FullTimeEmployee();
employees[1] = new PartTimeEmployee();
employees[2] = new TemporaryEmployee();
employees[3] = new InternEmployee();
// employee class is now abstract...
// so we cannot instantiate an object from it
// it gives us a compile-time error
// employees[4] = new Employee();
foreach (Employee e in employees)
{
if (e == null)
{
continue;
}
e.PrintFullName();
}
}