07. School Camp

import java.util.Scanner;

public class SchoolCamp {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String season = scanner.nextLine();
        String group = scanner.nextLine();
        int people = Integer.parseInt(scanner.nextLine());
        int nights = Integer.parseInt(scanner.nextLine());

        double price = 0;
        String sport = "";

        if (season.equals("Winter")) {
            switch (group) {
                case "boys":
                    price = 9.60;
                    sport = "Judo";
                    break;
                case "girls":
                    price = 9.60;
                    sport ="Gymnastics";
                    break;
                case "mixed":
                    price = 10.00;
                    sport = "Ski";
                    break;
            }
        } else if (season.equals("Spring")) {
            switch (group) {
                case "boys":
                    price = 7.20;
                    sport = "Tennis";
                    break;
                case "girls":
                    price = 7.20;
                    sport = "Athletics";
                    break;
                case "mixed":
                    price = 9.50;
                    sport = "Cycling";
                    break;
            }
        } else {
            switch (group) {
                case "boys":
                    price = 15.00;
                    sport = "Football";
                    break;
                case "girls":
                    price = 15.00;
                    sport = "Volleyball";
                    break;
                case "mixed":
                    price = 20.00;
                    sport = "Swimming";
                    break;
            }
        }

        if (people >= 50) {
            price *= 0.50;
        } else if (people >= 20) {
            price *= 0.85;
        }  else if (people >= 10) {
            price *= 0.95;
        }

        double totalSum = price * people * nights;
        System.out.printf(" %s %.2f lv.\n", sport, totalSum);
    }
}

ИЛИ:

import java.util.Scanner;

public class SchoolCamp {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String season = scanner.nextLine();
        String group = scanner.nextLine();
        int people = Integer.parseInt(scanner.nextLine());
        int nights = Integer.parseInt(scanner.nextLine());

        double price = 0;
        String sport = "";

        if (season.equals("Winter")) {
            price = group.equals("boys") ? 9.60 : group.equals("girls") ? 9.60 : 10.00;
            sport = group.equals("boys") ? "Judo" : group.equals("girls") ? "Gymnastics" : "Ski";
        } else if (season.equals("Spring")) {
            price = group.equals("boys") ? 7.20 : group.equals("girls") ? 7.20 : 9.50;
            sport = group.equals("boys") ? "Tennis" : group.equals("girls") ? "Athletics" : "Cycling";
        } else {
            price = group.equals("boys") ? 15.00 : group.equals("girls") ? 15.00 : 20.00;
            sport = group.equals("boys") ? "Football" : group.equals("girls") ? "Volleyball" : "Swimming";
        }

        price *=
                people >= 50 ? 0.50 :
                        people >= 20 ? 0.85 :
                                people >= 10 ? 0.95 : 1;

        double totalSum = price * people * nights;
        System.out.printf(" %s %.2f lv.\n", sport, totalSum);
    }
}