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();
}
public static ICreditCard GetCreditCard(string cardType)
{
ICreditCard cardDetails = null;
if (cardType == "MoneyBack")
{
cardDetails = new MoneyBack();
}
else if (cardType == "Titanium")
{
cardDetails = new Titanium();
}
else if (cardType == "Platinum")
{
cardDetails = new Platinum();
}
return(cardDetails);
}
protected override ICreditCard MakeProduct()
{
ICreditCard product = new Titanium();
return(product);
}