private void showStock(List<StockItem> stock) {
		System.out.println("-------------------------");
		for (StockItem si : stock) {
			System.out.println(si.getId() + " "
					+ si.getName() + " "
					+ si.getPrice() + "Euro ("
					+ si.getQuantity() + " items)");
		}
		if (stock.size() == 0) {
			System.out.println("\tNothing");
		}
		System.out.println("-------------------------");
	}