public void removePart(HousePartsIF part) { parts.Remove(part); price -= part.getPrice(); }
public void addPart(HousePartsIF part, double mult) { parts.Add(part); price += part.getPrice() * mult; }
public void removePart(HousePartsIF part) { parts.Remove(part); price -= part.getPrice(); }
public void addPart(HousePartsIF part, double mult) { parts.Add(part); price += part.getPrice() * mult; }