public void Start()
{
ICreditCard _creditCardDetail = CardFactory.GetCreditCardInstance(CardType.Platinum);
Console.WriteLine($"CardType:{_creditCardDetail.GetCardType()}" +
$"\n CreditLimit: {_creditCardDetail.GetCreditLimit()}" +
$"\n AnnualAverage: {_creditCardDetail.GetAnnualCharge()}");
}
static void Main(string[] args)
{
/*Problem - Usual Program execution */
//Generally we will get the Card Type from UI.
//Here we are hardcoded the card type
string cardType = "MoneyBack";
ICreditCard cardDetails = null;
//Based of the CreditCard Type we are creating the
//appropriate type instance using if else condition
if (cardType == "MoneyBack")
{
cardDetails = new MoneyBack();
}
else if (cardType == "Titanium")
{
cardDetails = new Titanium();
}
else if (cardType == "Platinum")
{
cardDetails = new Platinum();
}
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetails.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetails.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetails.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
/*Problem End here*/
/*Solution - Implementing Factory pattern*/
ICreditCard cardDetailsSolution = CreditCardFactoryPattern.GetCreditCard("Platinum");
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetailsSolution.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetailsSolution.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetailsSolution.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
/* Solution End Here*/
Console.ReadLine();
}
static void Main(string[] args)
{
ICreditCard m_CreditCard = null;
Console.WriteLine("Please Choose your credit card type (0,1,2)");
CreditCardType x = (CreditCardType)Enum.Parse(typeof(CreditCardType), Console.ReadLine());
switch (x)
{
case CreditCardType.MoneyBack:
m_CreditCard = new MoneyBack();
break;
case CreditCardType.Titanuim:
m_CreditCard = new Titanium();
break;
case CreditCardType.Platinum:
m_CreditCard = new Platinum();
break;
default:
break;
}
Console.WriteLine("First Without use Factory Design Patterns");
Console.WriteLine("");
Console.WriteLine($"Card Type is {m_CreditCard?.GetCardType() ?? "Invalid card"}");
Console.WriteLine($"Credit Limit is {m_CreditCard?.GetCreditLimit() ?? 0}");
Console.WriteLine($"Annual Charge is {m_CreditCard?.GetAnnualCharge() ?? 0}");
Console.WriteLine("");
Console.WriteLine("*************************************************************");
Console.WriteLine("");
Console.WriteLine("Second Use Factory Design Patterns");
Console.WriteLine("");
ICreditCard creditCardFactory = CreditCardFactory.GetCreditCard(x);
if (x == CreditCardType.MoneyBack)
{
((MoneyBack)creditCardFactory).GetAnnualCharge
Console.WriteLine($"Card Type is {creditCardFactory?.GetCardType() ?? "Invalid card"}");
}
Console.WriteLine($"Credit Limit is {creditCardFactory?.GetCreditLimit() ?? 0}");
Console.WriteLine($"Annual Charge is {creditCardFactory?.GetAnnualCharge() ?? 0}");
Console.ReadLine();
}
public static void UsingFactoryDP()
{
ICreditCard cardDetails = CreditCardFactory.GetCardInstance("Platinum");
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetails.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetails.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetails.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
}
public void CreditCardPattern()
{
ICreditCard cardDetails = CreditCardFactory.GetCreditCard("Platinum");
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetails.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetails.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetails.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
Console.ReadLine();
}
static void Main(string[] args)
{
int cardType = Convert.ToInt32(Console.ReadLine());
ICreditCard cardDetails = CardFactory.GetCardInstance(cardType);
if (cardDetails != null)
{
Console.WriteLine("Card Type: " + cardDetails.GetCardType());
Console.WriteLine("Card Limit: " + cardDetails.GetCreditLimit());
Console.WriteLine("Card Annual Charge: " + cardDetails.GetAnnualCharge());
}
else
{
Console.WriteLine("Invalid Card Type.");
}
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("Hello Factory Design , This factory desing pattern implementation");
ICreditCard cardDetails = CreditCardFactory.GetCreditCard(CreditCardType.Platinum);
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetails.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetails.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetails.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
Console.ReadLine();
}
static void Main(string[] args)
{
int cardType = 2;
//Getting the instance from the factory class
ICreditCard cardDetails = CardFactory.GetCardInstance(cardType);
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetails.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetails.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetails.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
Console.ReadLine();
}
private static void Main(string[] args)
{
//Generally we will get the Card Type from UI.
//Here we are hardcoded the card type
ICreditCard cardDetails = CreditCardFactory.GetCreditCard("MoneyBack");
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetails.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetails.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetails.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
Console.ReadLine();
}
public async Task <ActionResult <CardDetailsViewModel> > GetCardDetails(int id, string type)
{
//Get Card Type
switch (type)
{
case "MoneyBack":
_creditCard = new MoneyBackService();
break;
case "Platinum":
_creditCard = new PlatinumService();
break;
case "Titanium":
_creditCard = new TitaniumService();
break;
}
CardDetailsViewModel cardDetailsViewModel = new CardDetailsViewModel();
if (id != 0)
{
cardDetailsViewModel.CardType = _creditCard.GetCardType(id);
cardDetailsViewModel.CardLimit = _creditCard.GetCreditLimit(id);
cardDetailsViewModel.CardAnnualCharge = _creditCard.GetAnnualCharge(id);
}
if (string.IsNullOrEmpty(cardDetailsViewModel.CardType) && cardDetailsViewModel.CardLimit == 0 && cardDetailsViewModel.CardAnnualCharge == 0)
{
cardDetailsViewModel = null;
}
if (cardDetailsViewModel == null)
{
return(NotFound());
}
else
{
return(cardDetailsViewModel);
}
}
static void ShowCreditCard(ICreditCard c)
{
Console.WriteLine($"CardType: {c.GetCardType()}; Limit: {c.GetCreditLimit()}; AnnualCharge: {c.GetAnnualCharge()}% ");
}
static void Main(string[] args)
{
Console.WriteLine("--------------Singleton--------------");
//Singleton
Parallel.Invoke(
() => PrintStudentDetails(),
() => PrintEmployeeDetails()
);
Console.WriteLine("--------------");
//Simple Factory Design Pattern
Console.WriteLine("--------------Simple Factory Design Pattern--------------");
int cardType = 1;
ICreditCard cardDetails = CardFactory.GetCardInstance(cardType);;
if (cardDetails != null)
{
Console.WriteLine("CardType : " + cardDetails.GetCardType());
Console.WriteLine("CreditLimit : " + cardDetails.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + cardDetails.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
Console.WriteLine("--------------");
//Simple Factory Method Design Pattern
Console.WriteLine("--------------Simple Factory Method Design Pattern--------------");
SFMDP.ICreditCard CreditCardInstance = new SFMDP.PlatinumCreditCardFactory().CreateProduct();
if (CreditCardInstance != null)
{
Console.WriteLine("CardType : " + CreditCardInstance.GetCardType());
Console.WriteLine("CreditLimit : " + CreditCardInstance.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + CreditCardInstance.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
CreditCardInstance = new SFMDP.TitaniumCreditCardFactory().CreateProduct();
if (CreditCardInstance != null)
{
Console.WriteLine("CardType : " + CreditCardInstance.GetCardType());
Console.WriteLine("CreditLimit : " + CreditCardInstance.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + CreditCardInstance.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
Console.WriteLine("--------------Providing another layer of Abstraction--------------");
//Providing another layer of Abstraction:
// In the above example, we directly call the CreateProduct method on a particular factory class instance to get the actual product instance.What if I need to create the product instance based on the card type value that I received from the user.If this is your requirement, then you need to create another simple factory class as shown below.Create a class with the name CreditCardFactory and then copy and paste the following code.
//Setting the Card Type value
int CreditCardType = 1;
//This is going to return an instance of a Particular Card type object
CreditCardInstance = new SFMDP.CreditCardFactory().CreateObject(CreditCardType);
if (CreditCardInstance != null)
{
Console.WriteLine("CardType : " + CreditCardInstance.GetCardType());
Console.WriteLine("CreditLimit : " + CreditCardInstance.GetCreditLimit());
Console.WriteLine("AnnualCharge :" + CreditCardInstance.GetAnnualCharge());
}
else
{
Console.Write("Invalid Card Type");
}
Console.WriteLine("--------------");
Console.WriteLine("------Abolish Switch Case--------");
SwitchCase switchCase = new SwitchCase();
switchCase.Type = "Type0";
Console.WriteLine($"Type :: {switchCase.Type} Value :: {switchCase.GetNewValueBasedOnType(1)}");
switchCase.Type = "Type1";
Console.WriteLine($"Type :: {switchCase.Type} Value :: {switchCase.GetNewValueBasedOnType(1)}");
switchCase.Type = "Type2";
Console.WriteLine($"Type :: {switchCase.Type} Value :: {switchCase.GetNewValueBasedOnType(1)}");
var entityFactory = new EntityFactory();
var entity = entityFactory.GetEntityBasedOnType(EntityType.Type0);
var result = entity.GetNewValue(1);
Console.WriteLine(result);
entity = entityFactory.GetEntityBasedOnType(EntityType.Type1);
result = entity.GetNewValue(1);
Console.WriteLine(result);
entity = entityFactory.GetEntityBasedOnType(EntityType.Type2);
result = entity.GetNewValue(1);
Console.WriteLine(result);
Console.WriteLine("--------------");
Console.ReadLine();
}
static void Print(ICreditCard crediCard)
{
Console.WriteLine(crediCard.GetCardType());
Console.WriteLine(crediCard.GetCreditLimit());
Console.WriteLine(crediCard.GetAnualFee());
}
