private static Stock parseStock(String line) {
        String[] parts = line.split(",");
        if (parts[2].equals("0.00")) {
            System.err.println("Stock " + parts[1] + " does not exist!");
            return null;
        }
        Stock s = new Stock(parts[1].replace("\"", ""),
                parts[0].replace("\"", ""),
                0, Float.parseFloat(parts[2]));

        return s;
    }