Здравейте имам следния проблем: въвеждам от конзолата един string i два  int,  но програмата не ми дава да стигна до въвеждане на int, изписвайки следната грешка: 

Exception in thread "main" java.lang.NumberFormatException: For input string: ""
    at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:68)
    at java.base/java.lang.Integer.parseInt(Integer.java:668)
    at java.base/java.lang.Integer.parseInt(Integer.java:776)
    at NewHouse.main(NewHouse.java:7)

Ето го и кода ми:

import java.util.Scanner;

public class NewHouse {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String flower = scanner.next();
        int quantityFlowers = Integer.parseInt(scanner.nextLine());
        int budget = Integer.parseInt(scanner.nextLine());


        double finalCost = 0.00;

        if ("Roses".equals(flower)) {
            double cost = quantityFlowers * 5;
            if (quantityFlowers >= 80) {
                double discount =  cost * 0.9;
                finalCost = cost - discount;
            }
        }else if ("Dahlias".equals(flower)) {
            double cost = quantityFlowers * 3.8;
            if (quantityFlowers >= 90) {
                double discount = cost * 0.85;
                finalCost = cost - discount;
            }
        }else if ("Tulips".equals(flower)) {
                double cost = quantityFlowers * 2.8;
                if (quantityFlowers >= 80) {
                    double discount = cost * 0.85;
                    finalCost = cost - discount;
                }
            }else if ("Narcissus".equals(flower)) {
                double cost = quantityFlowers * 3;
                if (quantityFlowers >= 120) {
                    double discount = cost * 0.85;
                    finalCost = cost - discount;
                }
            }else if ("Gladiolus".equals(flower)) {
               double cost = quantityFlowers * 2.5;
                if (quantityFlowers >= 80) {
                  double  discount = cost * 0.8;
                    finalCost = cost - discount;
                }
            }
        if ( budget <= finalCost) {
            double moneyLeft = finalCost - budget;
            System.out.printf("Hey, you have a great garden with %d %s and %.2f leva left.", quantityFlowers, flower, moneyLeft);
        }else if (budget > finalCost) {
            double moneyNeeded = budget - finalCost;
            System.out.printf("Not enough money, you need %.2f leva more.", moneyNeeded);
        }

    }
}