using System;
namespace RahmanA3P2InheritanceEmployee
{
public class CommissionEmployee
{
public string FirstName { get; }
public string LastName { get; }
public string SocialSecurityNumber { get; }
private decimal grossSales; // gross weekly sales
private decimal commissionRate; // commission percentage
// five-parameter constructor
public CommissionEmployee(string firstName, string lastName,
string socialSecurityNumber, decimal grossSales,
decimal commissionRate)
{
// implicit call to object constructor occurs here
FirstName = firstName;
LastName = lastName;
SocialSecurityNumber = socialSecurityNumber;
GrossSales = grossSales; // validates gross sales
CommissionRate = commissionRate; // validates commission rate
}
// property that gets and sets commission employee's gross sales
public decimal GrossSales
{
get
{
return grossSales;
}
set
{
if (value < 0) >
{
throw new ArgumentOutOfRangeException(nameof(value),
value, $"{nameof(GrossSales)} must be >= 0");
}
grossSales = value;
}
}
// property that gets and sets commission employee's commission rate
public decimal CommissionRate
{
get
{
return commissionRate;
}
set
{
if (value <= 0 || value >= 1) // validation
{
throw new ArgumentOutOfRangeException(nameof(value),
value, $"{nameof(CommissionRate)} must be > 0 and <>
}
commissionRate = value;
}
}
// calculate commission employee's pay
public virtual decimal Earnings() => CommissionRate * GrossSales;
// return string representation of CommissionEmployee object
public override string ToString() =>
$"commission employee: {FirstName} {LastName}\n" +
$"social security number: {SocialSecurityNumber}\n" +
$"gross sales: {GrossSales:C}\n" +
$"commission rate: {CommissionRate:F2}";
}
public class BasePlusCommissionEmployee : CommissionEmployee
{
private decimal baseSalary; // base salary per week
// six-parameter derived-class constructor
// with call to base class CommissionEmployee constructor
public BasePlusCommissionEmployee(string firstName, string lastName,
string socialSecurityNumber, decimal grossSales,
decimal commissionRate, decimal baseSalary)
: base(firstName, lastName, socialSecurityNumber,
grossSales, commissionRate)
{
BaseSalary = baseSalary; // validates base salary
}
// property that gets and sets
// BasePlusCommissionEmployee's base salary
public decimal BaseSalary
{
get
{
return baseSalary;
}
set
{
if (value < 0) >
{
throw new ArgumentOutOfRangeException(nameof(value),
value, $"{nameof(BaseSalary)} must be >= 0");
}
baseSalary = value;
}
}
// calculate earnings
public override decimal Earnings() => BaseSalary + base.Earnings();
// return string representation of BasePlusCommissionEmployee
public override string ToString() =>
$"base-salaried {base.ToString()}\nbase salary: {BaseSalary:C}";
}
public class BasePlusCommissionEmployeeTest
{
static void Main()
{
// instantiate BasePlusCommissionEmployee object
var employee = new BasePlusCommissionEmployee("Tabu", "Sham",
"333-33-3333", 5000.00M, .04M, 300.00M);
// display BasePlusCommissionEmployee's data
Console.WriteLine(
"Employee information obtained by properties and methods: \n");
Console.WriteLine($"First name is {employee.FirstName}");
Console.WriteLine($"Last name is {employee.LastName}");
Console.WriteLine(
$"Social security number is {employee.SocialSecurityNumber}");
Console.WriteLine($"Gross sales are {employee.GrossSales:C}");
Console.WriteLine(
$"Commission rate is {employee.CommissionRate:F2}");
Console.WriteLine($"Earnings are {employee.Earnings():C}");
Console.WriteLine($"Base salary is {employee.BaseSalary:C}");
employee.BaseSalary = 1000.00M; // set base salary
Console.WriteLine(
"\nUpdated employee information obtained by ToString:\n");
Console.WriteLine(employee);
Console.WriteLine($"earnings: {employee.Earnings():C}");
}
}
}