Computer Store

import java.util.Scanner;

public class ComputerStore {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        double totalAmount = 0;

        String type = scanner.nextLine();
        while (!(type.equals("special") || (type.equals("regular")))) {
            double price = Double.parseDouble(type);
            if (price < 0) {
                System.out.println("Invalid price!");
            } else {
                totalAmount += price;
            }
            type = scanner.nextLine();
        }
        double taxes = totalAmount * 0.20;
        double finalSum = taxes + totalAmount;

        if (type.equals("special")) {
            finalSum *= 0.90;
        }

        if (totalAmount == 0) {
            System.out.println("Invalid order!");
        } else {
            System.out.printf("Congratulations you've just bought a new computer!%n");
            System.out.printf("Price without taxes: %.2f$%n", totalAmount);
            System.out.printf("Taxes: %.2f$%n", taxes);
            System.out.printf("-----------%n");
            System.out.printf("Total price: %.2f$", finalSum);
        }
    }
}

/*              System.out.printf("Congratulations you've just bought a new computer!%n" +
                    "Price without taxes: %.2f$%n" +
                    "Taxes: %.2f$%n" +
                    "-----------%n" +
                    "Total price: %.2f$", total, taxes, finalSum);  */