public ArrayList<Customer> initiateCustomerList(Connection conn) throws SQLException, IOException {
        int customerID;
        int customerPhone;
        String customerName;
        String customerCVR;

        ArrayList<Customer> customerList = new ArrayList<>();

        CallableStatement cs;
        cs = conn.prepareCall("{call getCustomers}");
        ResultSet rs = cs.executeQuery();

        while (rs.next()) {
            customerID = rs.getInt("customerID");
            customerName = rs.getString("companyName");
            customerPhone = rs.getInt("phone");
            customerCVR = rs.getString("CVR");
            Customer customer = new Customer(customerID, customerName, customerPhone, customerCVR);
            customerList.add(customer);
        }

        return customerList;

    }