Question

This must be written in C# with overloaded constructors and member initialization list

4. Person and Customer Classes

Design a class named Person with properties for holding a person's name, address, and telephone number. Next, design a class named Customer, which is derived from the Person class. The Customer class should have a property for a customer number and a Boolean property indicating whether the customer wishes to be on a mailing list. Demonstrate an object of the Customer class in a simple application.

5. PreferredCustomer Class

A retail store has a preferred customer plan where customers can earn discounts on all their purchases. The amount of a customer's discount is determined by the amount of the customer's cumulative purchases in the store as follows:

     * When a preferred customer spends $500, he or she gets a 5 percent discount on all future purchases.

     * When a preferred customer spends $1,000, he or she gets a 6 percent discount on all future purchases.

     * When a preferred customer spends $1,500, he or she gets a 7 percent discount on all future purchases.

     * When a preferred customer spends $2,000 or more, he or she gets a 10 percent discount on all future purchases.

Design a class named PreferredCustomer, which is derived from the Customer class you created in Programming Problem 4. The PreferredCustomer class should have properties for the amount of the customer's purchases and the customer's discount level. Demonstrate the class in a simple application.

Answer 1

Person.cs

namespace CheggConsoleApplication
{
class Person
{
// Properties for data members
public string Name { get; set; }
public string Address { get; set; }
public string Telephone { get; set; }

// Constructor to initialize data members
public Person(string name, string address, string telephone)
{
Name = name;
Address = address;
Telephone = telephone;
}

// Return detail of Person
public override string ToString()
{
return "Name: " + Name +
"\nAddress: " + Address +
"\nTelephone Number: " + Telephone;
}
}
}

Customer.cs

namespace CheggConsoleApplication
{
class Customer : Person
{
// Properties for data members
public int CustomerNumber { get; set; }
public bool MailingList { get; set; }

// Constructor to initialize data members. Call base class constructor
public Customer(string name, string address, string telephone, int customerNumber, bool mailingList) : base(name, address, telephone)
{
CustomerNumber = customerNumber;
MailingList = mailingList;
}

// Return detail of Customer and call super class method too
public override string ToString()
{
return base.ToString()+"\nCustomer Number: " + CustomerNumber
+ "\nMailing List: " + MailingList;
}
}
}

PreferredCustomer.cs

namespace CheggConsoleApplication
{
class PreferredCustomer : Customer
{   
// Properties for data members
public double Purchases { get; set; }
public double Discount { get; set; }

// Constructor to initialize data members. Call base class constructor
public PreferredCustomer(string name, string address, string telephone, int customerNumber, bool mailingList, double purchases)
: base(name, address, telephone, customerNumber, mailingList)
{
Purchases = purchases;
setDiscount();
}

// Method to set Discount level
public void setDiscount()
{
if (Purchases >= 2000)
{
Discount = 10;
}else if (Purchases >= 1500)
{
Discount = 7;
}else if (Purchases >= 1000)
{
Discount = 6;
}else if(Purchases >= 500)
{
Discount = 5;
}else
{
Discount = 0;
}
}

// Return detail of PreferredCustomer and call super class method too
public override string ToString()
{
return base.ToString()+"\nPurchases: $" + Purchases +
"\nDiscount: " + Discount+"%";
}
}
}

PersonTest.cs

using System;

namespace CheggConsoleApplication
{
class PersonTest
{
static void Main(string[] args)
{
// Create customer object to test
Customer cust = new Customer("Jane","22B, Baker Street","93748272038",123,true);
Console.WriteLine(cust);
Console.WriteLine();

// Create PreferredCustomer to test
PreferredCustomer pc = new PreferredCustomer("John","12/34 H-Block","423979302",111,false,1999);
Console.WriteLine(pc);
  
}
}
}

OUTPUT-