School Camp

package Z_Exams03;

import java.util.Scanner;

public class SchoolCamp {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String season = scan.nextLine().toLowerCase(); // winter , summer , spring
        String group = scan.nextLine().toLowerCase();  // boys , girls , mixed
        int studentNum = Integer.parseInt(scan.nextLine());
        int nights = Integer.parseInt(scan.nextLine());

        double priceForNight = 0;

        String sport = "";

        switch (season) {
            case "winter":
                switch (group) {
                    case "boys":
                        sport = "Judo";
                        priceForNight = 9.60;
                        break;
                    case "girls":
                        sport = "Gymnastics";
                        priceForNight = 9.60;
                        break;
                    case "mixed":
                        sport = "Ski";
                        priceForNight = 10;
                        break;
                }
                break;
            case "summer":
                switch (group) {
                    case "boys":
                        sport = "Football";
                        priceForNight = 15;
                        break;
                    case "girls":
                        sport = "Volleyball";
                        priceForNight = 15;
                        break;
                    case "mixed":
                        sport = "Swimming";
                        priceForNight = 20;
                        break;
                }
                break;
            case "spring":
                switch (group) {
                    case "boys":
                        sport = "Tennis";
                        priceForNight = 7.20;
                        break;
                    case "girls":
                        sport = "Athletics";
                        priceForNight = 7.20;
                        break;
                    case "mixed":
                        sport = "Cycling";
                        priceForNight = 9.50;
                        break;
                }
                break;
        }
        double sum = studentNum * nights * priceForNight;
        if (studentNum >= 10 && studentNum < 20) {
            System.out.printf("%s %.2f lv.", sport, sum * (1 - 0.05));
        } else if (studentNum >= 20 && studentNum < 50) {
            System.out.printf("%s %.2f lv.", sport, sum * (1 - 0.15));
        } else if (studentNum >= 50) {
            System.out.printf("%s %.2f lv.", sport, sum * (1 - 0.5));
        }else {
            System.out.printf("%s %.2f lv.", sport, sum );
        }
    }
}