Decorator Design Pattern

Bushra
Posted by Bushra under ASP.NET category on | Points: 40 | Views : 362
namespace DecoratorPattern
{
class Program
{
public interface SurgeryWard
{
string GetRoomName();

double GetPayment();
}

class FourBeddedRoom : SurgeryWard
{
private string roomname="Four Bedded Room";

private double roompayment = 1000.0;

public string GetRoomName()
{
return roomname;
}

public double GetPayment()
{
return roompayment;
}
}

class TwoBeddedRoom : SurgeryWard
{
private string roomname="Two Bedded Room";
private double roompayment = 2000.0;

public string GetRoomName()
{
return roomname;
}

public double GetPayment()
{
return roompayment;
}

}
class SingleRoom : SurgeryWard
{
private string roomname="SingleRoom";
private double roompayment = 3000.0;

public string GetRoomName()
{
return roomname;
}

public double GetPayment()
{
return roompayment;
}
}
public abstract class Decorator : SurgeryWard
{
SurgeryWard RoomType = null;

protected string addedamenity = "Undefined Decorator";
protected double amenitypayment = 0.0;

protected Decorator(SurgeryWard RoomTypee)
{
RoomType = RoomTypee;
}

#region SurgeryWard Members

string SurgeryWard.GetRoomName()
{
return string.Format("{0}, {1}", RoomType.GetRoomName(), addedamenity);
}

double SurgeryWard.GetPayment()
{
return amenitypayment + RoomType.GetPayment();
}

public void Show()
{
string a = string.Format("{0}, {1}", RoomType.GetRoomName(), addedamenity);
double b = amenitypayment + RoomType.GetPayment();
Console.WriteLine("RoomDetails {0} Payment {1}", a, b);
}

#endregion
}
class TelevisionDecorator : Decorator
{
public TelevisionDecorator(SurgeryWard RoomTypee)
: base(RoomTypee)
{
this.addedamenity = "Television";
this.amenitypayment = 100.0;
}

}
class LockerDecorator : Decorator
{
public LockerDecorator(SurgeryWard RoomTypee)
: base(RoomTypee)
{
this.addedamenity = "Locker";
this.amenitypayment = 200.0;
}
}
class WifiDecorator : Decorator
{
public WifiDecorator(SurgeryWard RoomTypee)
: base(RoomTypee)
{
this.addedamenity = "Wifi";
this.amenitypayment = 300.0;
}
}
class SofaBedDecorator : Decorator
{
public SofaBedDecorator(SurgeryWard RoomTypee)
: base(RoomTypee)
{
this.addedamenity = "SofaBed";
this.amenitypayment = 400.0;
}
}
class MiniFridgeDecorator : Decorator
{
public MiniFridgeDecorator(SurgeryWard RoomTypee)
: base(RoomTypee)
{
this.addedamenity = "MiniFridge";
this.amenitypayment = 500.0;
}
}
class WritingTableDecorator : Decorator
{
public WritingTableDecorator(SurgeryWard RoomTypee)
: base(RoomTypee)
{
this.addedamenity = "WritingTable";
this.amenitypayment = 6.0;
}
}
static void Main(string[] args)
{
SingleRoom sr = new SingleRoom();
WifiDecorator wd = new WifiDecorator(sr);
TelevisionDecorator td = new TelevisionDecorator(wd);

td.Show();

}
}
}

Comments or Responses

Posted by: Sheonarayan on: 12/2/2015 Level:HonoraryPlatinum | Status: [Administrator] | Points: 10
Please do not just copy-paste the code but also explain these code snippets.

Thanks

Login to post response