public double getPricesFromRodsStrategy(ArrayList<Rod> rodList) {
		ArrayList<Rod> maximumRevenueRods = rodList;
		double sum = 0;
		if(maximumRevenueRods == null) {
			return sum;
		}
		for (Rod rod : maximumRevenueRods) {
			sum += rod.getPrice();
		}
		return sum;
	}