public class RoomCarpet {

	private RoomDimension size;
	private double carpetCost;
	
	public RoomCarpet(RoomDimension dim, double cost)
	{
		this.size = dim;
		this.carpetCost = cost;
	}
	
	public double getTotalCost()
	{
		return size.getArea() * carpetCost;
	}
}