private static void displayAddInventory(BufferedReader reader, VideoStore videoStore) {
        try {
            System.out.println("Please enter the title of the video you would like to add inventory to:");
            String isbn = getISBNFromTitle(reader, videoStore, reader.readLine());
            System.out.println("How much inventory is being added?");
            int amount = 0;
            while(true) {
                try {
                    amount = Integer.parseInt(reader.readLine());
                } catch (Exception ignored) {
                }
                if (amount > 0) {
                    break;
                }
            }
            if (videoStore.addInventory(isbn, amount)) {
                System.out.println("Successfully added inventory.");
                return;
            }
            System.out.println("Unable to successfully add inventory.");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }