Override Properties

   
 

using System;
using System.Collections;
   
abstract class Employee
{
    protected Employee(int employeeId, int hoursWorked)
    {
        this.employeeId = employeeId;
        HoursWorked = hoursWorked;
    }
   
    protected int employeeId;
    public int EmployeeId
    {
        get { return employeeId; }
    }
   
    protected int HoursWorked;
   
    protected double hourlyCost = -1; // dummy init value
    public abstract double HourlyCost
    { 
        get;
    }
}
   
class ContractEmployee : Employee
{
    public ContractEmployee(int employeeId, double hourlyWage,
        int hoursWorked)
        : base(employeeId, hoursWorked)
    {
        HourlyWage = hourlyWage;
    }
   
    protected double HourlyWage;
    public override double HourlyCost
    { 
        get 
        { return HourlyWage; }
    }
}
   
class SalariedEmployee : Employee
{
    public SalariedEmployee(int employeeId, double salary,
        int hoursWorked)
        : base(employeeId, hoursWorked)
    {
        Salary = salary;
    }
   
    protected double Salary;
    public override double HourlyCost
    { 
        get 
        { 
            return (Salary / 52) / HoursWorked; 
        }
    }
}
   
class OverrideProperties
{
    public static ArrayList employees = new ArrayList();
 
    public static void PrintEmployeesHourlyCostToCompany()
    {
        foreach (Employee employee in employees)
        {
            Console.WriteLine("{0} employee (id={1}) costs {2}" +
                " per hour", employee, employee.EmployeeId,
                employee.HourlyCost);
        }
    }
   
    public static void Main()
    {
        ContractEmployee c  = new ContractEmployee(1, 50, 40);
        employees.Add(c);
   
        SalariedEmployee s =
            new SalariedEmployee(2, 100000, 65);
        employees.Add(s);
   
        PrintEmployeesHourlyCostToCompany();
   
        Console.ReadLine();
    }
}