1.Intro.2 Trip (Solved)

import java.util.Scanner;

class MyException extends Exception {
    private String msg;

    public MyException(String msg) {
        this.msg = msg;
    }

    public MyException() {
    }

    @Override
    public String toString() {
        return "Exception\n";
    }
}

class Trip {
    protected String name;
    protected int price;

    public Trip(String name, int price) {
        this.name = name;
        this.price = price;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getPrice() {
        return price;
    }

    public void setPrice(int price) {
        this.price = price;
    }

    public int returnTimeInDays() {
        return 0;
    }

    @Override
    public String toString() {
        return name;
    };

    static public int minPrice(Trip[] trips, Trip holiday) {
        int min = 1000000;
        for (Trip trip : trips) {
            if (holiday.returnTimeInDays() < trip.returnTimeInDays()) {
                if (trip.getPrice() < min) {
                    min = trip.getPrice();
                }
            }
            // System.out.println(holiday.getPrice() + " " + trip.getPrice() + " " + min);
        }
        return min;
    }

}

class Vacation extends Trip {
    private int days;

    public Vacation(String name, int price, int days) {
        super(name, price - 1000);
        this.days = days;
    }

    public int getDays() {
        return days;
    }

    public void setDays(int days) {
        this.days = days;
    }

    public int returnTimeInDays() {
        return days;
    }

}

class FestiveTrip extends Trip {
    private int startDay, startMonth, endDay, endMonth;

    public FestiveTrip(String name, int price, int startDay, int startMonth, int endDay, int endMonth) {
        super(name, price);
        try {
            if (startDay + startMonth * 30 > endDay + endMonth * 30) {
                throw new Exception("Exception");
            }
        } catch (Exception e) {
            String msg = e.getMessage();
            System.out.println(msg);
            int temp = startDay;
            startDay = endDay;
            endDay = temp;

            temp = startMonth;
            startMonth = endMonth;
            endMonth = temp;
        }
        this.startDay = startDay;
        this.startMonth = startMonth;
        this.endDay = endDay;
        this.endMonth = endMonth;
    }

    public int returnTimeInDays() {
        return (endDay + endMonth * 30) - (startDay + startMonth * 30);
    }

    public int getStartDay() {
        return startDay;
    }

    public void setStartDay(int startDay) {
        this.startDay = startDay;
    }

    public int getStartMonth() {
        return startMonth;
    }

    public void setStartMonth(int startMonth) {
        this.startMonth = startMonth;
    }

    public int getEndDay() {
        return endDay;
    }

    public void setEndDay(int endDay) {
        this.endDay = endDay;
    }

    public int getEndMonth() {
        return endMonth;
    }

    public void setEndMonth(int endMonth) {
        this.endMonth = endMonth;
    };

}

public class Test {
    public static void main(String[] args) {
        int n;
        Scanner in = new Scanner(System.in);
        n = in.nextInt();

        Trip trips[] = new Trip[n];

        for (int i = 0; i < n; i++) {
            int tip = in.nextInt();
            if (tip == 0) {
                String ime = in.next();
                int cena = in.nextInt();
                int vreme = in.nextInt();
                trips[i] = new Vacation(ime, cena, vreme);
            } else {
                String ime = in.next();
                int cena = in.nextInt();
                int pocD = in.nextInt();
                int pocM = in.nextInt();
                int krajD = in.nextInt();
                int krajM = in.nextInt();
                trips[i] = new FestiveTrip(ime, cena, pocD, pocM, krajD, krajM);

            }
        }

        // решение на барање 1
        StringBuffer sb = new StringBuffer();
        for (Trip trip : trips) {
            if (trip instanceof FestiveTrip) {
                //sb.append(" instanceof " + ((FestiveTrip) trip).getStartMonth());
                if (((FestiveTrip) trip).getStartMonth() == 6) {
                    sb.append(trip.toString());
                    sb.append(" ");
                }
            }
        }
        System.out.println(sb.toString());

        sb.delete(0, sb.length());
        // решение на барање 2
        double sum = 0;
        for (Trip trip : trips) {
            /*
            System.out.println(trip.toString() +" "+ trip.returnTimeInDays());
            if (trip instanceof FestiveTrip) {
                System.out.println(((FestiveTrip) trip).getStartMonth() +" | "+((FestiveTrip) trip).getEndMonth());
            }
            */
            sum += trip.returnTimeInDays();
        }
        double average = sum / trips.length;
        System.out.println(average);

        // решение на барање 3
        String nameVacation = in.next();
        int priceVacation = in.nextInt();
        int daysVacation = in.nextInt();
        Vacation holiday = new Vacation(nameVacation, priceVacation, daysVacation);

        // решение на барање 4
        System.out.println(Trip.minPrice(trips, holiday));

    }

}