public void printBidList() {
        for (int i = 0; i < bids.size(); i++) {
            if (bids.get(i) == null) {
                System.out.println("No bids registered yet for this auction");
                return;
            }
                System.out.println("Here are the bids for this auction");
                System.out.println(bids.get(i));

        }
    }