OOP2

import java.util.Set;

public class Bed {

	private Set<Date> reservedDates;

	public Bed(Set<Date> reservedDates) {

		this.reservedDates = reservedDates;

	}

	/**

	 * Checks whether this Bed can be reserved in the given period.

	 * @return True if it's free, false otherwise.

	 */

	public boolean isFree(Date begin, Date end) {

		for(Date reservedDate: this.reservedDates) {

			if(reservedDate.after(begin) && reservedDate.before(end)) {

				return false;

			}

		}

		return true;

	}

}

public class Reservation {

	private String groupName;

	private Date date;

	private Set<Bed> reservedBeds;

	private int reservationID;

	private String roomType;

	private Set<String> roomFacilities;

	private int nights;

	private int[] breakfastDays;

	public Reservation(String groupName, Date date, Set<Bed> reservedBeds, int reservationID, String roomType, Set<String> roomFacilities, int nights, int[] breakfastDays) {

		this.groupName = groupName;

		this.date = date;

		this.reservedBeds = reservedBeds;

		this.reservationID = reservationID;

		this.roomType = roomType;

		this.roomFacilities = roomFacilities;

		this.nights = nights;

	}

	public void setGroupName(String groupName) {

		this.groupName = groupName;

	}

	public String getGroupName() {

		return groupName;

	}

	public void setDate(Date date) {

		this.date = date;

	}

	public Date getDate() {

		return date;

	}

	public void setReservedBeds(Set<Bed> reservedBeds) {

		this.reservedBeds = reservedBeds;

	}

	public Set<Bed> getReservedBeds() {

		return reservedBeds;

	}

	public void setReservationID(int reservationID) {

		this.reservationID = reservationID;

	}

	public int getReservationID() {

		return reservationID;

	}

	public void setRoomType(String roomType) {

		this.roomType = roomType;

	}

	public String getRoomType() {

		return roomType;

	}

	public void setRoomFacilities(Set<String> roomFacilities) {

		this.roomFacilities = roomFacilities;

	}

	public Set<String> getRoomFacilities() {

		return roomFacilities;

	}

	public void setNights(int nights) {

		this.nights = nights;

	}

	public int getNights() {

		return nights;

	}

	// TODO breakfast get/set!

}

import java.util.HashSet;

import java.util.Date;

public class Room {

	private Set<Bed> beds;

	private String type;

	private Set<String> facilities;

	public Room(Set<Bed> beds, String type, Set<String> facilities) {

		this.beds = beds;

		this.type = type;

		this.facilities = facilities;

	}

	public void setBeds(Set<Bed> beds) {

		this.beds = beds;

	}

	public Set<Bed> getBeds() {

		return beds;

	}

	public void setType(String type) {

		this.type = type;

	}

	public String getType() {

		return type;

	}

	public void setFacilities(Set<String> facilities) {

		this.facilities = facilities;

	}

	public Set<String> getFacilities() {

		return facilities;

	}

	public Set<Bed> getEmptyBeds(Date begin, Date end) {

		Set<Bed> emptyBeds = new HashSet<>();

		for(Bed bed: this.beds) {

			if(bed.isFree(begin, end)) {

				emptyBeds.add(bed);

			}

		}

		return emptyBeds;

	}

}