12. Trade Commissions

package ConditionalStatementsAdvance;

import java.util.Scanner;

public class TradeCommissions_12 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String town = scanner.nextLine();
        double amount = Double.parseDouble(scanner.nextLine());

        boolean isValid = true;
       /* Град  0 ≤ s ≤ 500   500 < s ≤ 1 000 1 000 < s ≤ 10 000     s > 10 000
        Sofia       5%          7%                  8%                  12%
        Varna       4.5%        7.5%                10%                 13%
        Plovdiv     5.5%          8%                12%                 14.5% */


        double commission = 0;

        if (amount >= 0 && amount <= 500){
            switch (town){
                case "Sofia" -> commission = amount * 0.05;
                case "Varna" -> commission = amount * 0.045;
                case "Plovdiv" -> commission = amount * 0.055;
                default -> isValid = false; // при получаване на различен град от София, Варна, Пловдив
            }
        } else if (amount > 500 && amount <= 1000) {
            switch (town){
                case "Sofia" -> commission = amount * 0.07;
                case "Varna" -> commission = amount * 0.075;
                case "Plovdiv" -> commission = amount * 0.08;
                default -> isValid = false;
            }
        }else if(amount > 1000 && amount <= 10000){
            switch (town){
                case "Sofia" -> commission = amount * 0.08;
                case "Varna" -> commission = amount * 0.1;
                case "Plovdiv" -> commission = amount * 0.12;
                default -> isValid = false;
            }
        } else if (amount > 10000) {
            switch (town){
                case "Sofia" -> commission = amount * 0.12;
                case "Varna" -> commission = amount * 0.13;
                case "Plovdiv" -> commission = amount * 0.145;
                default -> isValid = false;
            }
        }else if(amount < 0){
            isValid = false;
        }

        if(isValid){
            System.out.printf("%.2f", commission);
        }else {
            System.out.println("error");
        }
    }
}