4. Hotel Reservation

Main.java
package hotel;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        //"{pricePerDay} {numberOfDays} {season} {discountType}"
        String input = scanner.nextLine();
        String [] splittedInput = input.split("\\s+");

        //["{pricePerDay}", "{numberOfDays}", "{season}", "{discountType}"]
        double pricePerDay = Double.parseDouble(splittedInput[0]);
        int numberOfDays = Integer.parseInt(splittedInput[1]);
        Season season = Season.valueOf(splittedInput[2].toUpperCase()); //"Summer" -> "SUMMER"
        DiscountType discountType = DiscountType.valueOf(splittedInput[3].toUpperCase()); //"SecondVisit" -> "SECONDVISIT"

        double holidayPrice = PriceCalculator.calculateHolidayPrice(pricePerDay, numberOfDays, season, discountType);

        System.out.printf("%.2f", holidayPrice);

    }
}

PriceCalculator.java
package hotel;

public class PriceCalculator {

    public static double calculateHolidayPrice (double pricePerDay, int days, Season season, DiscountType discountType) {
        //сума за всички дни
        double priceForAllDays = pricePerDay * days;
        //умножение спрямо сезона
        priceForAllDays *= season.getMultiplyCoefficient();
        //отстъпка
        priceForAllDays = priceForAllDays - priceForAllDays * (discountType.getPercent() / 100);

        return priceForAllDays;
    }
}


Season.java
package hotel;

public enum Season {
    //4 сезона -> 4 константни обекта
    SUMMER(4),
    AUTUMN(1),
    WINTER(3),
    SPRING(2);

    private int multiplyCoefficient;

    Season(int multiplyCoefficient) {
        this.multiplyCoefficient = multiplyCoefficient;
    }


    public int getMultiplyCoefficient() {
        return multiplyCoefficient;
    }

    public void setMultiplyCoefficient(int multiplyCoefficient) {
        this.multiplyCoefficient = multiplyCoefficient;
    }
}


DiscountType.java
package hotel;

public enum DiscountType {
    NONE(0),
    SECONDVISIT(10),
    VIP(20);

    private double percent;

    DiscountType(double percent) {
        this.percent = percent;
    }


    public double getPercent() {
        return percent;
    }

    public void setPercent(double percent) {
        this.percent = percent;
    }
}