Need help with event trace diagram for my hotel reservation class.

public class Reservation {

private MasterRoomList masterRoomList; private List roomList; private int roomPrice; private int numOfGuests; private Date stayStart, stayEnd; String startDate, endDate;

String pattern = "mm/dd/yyyy"; SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);

public void addRoom(Room room) {

boolean isDirty = masterRoomList.checkDirty(room); boolean isAvailable = masterRoomList.checkCapacity(room);

//check ifDirty or notDirty if (!isDirty && isAvailable) { roomList.add(room); }

}

public MasterRoomList getMasterRoomList() { return masterRoomList; }

public void setMasterRoomList(MasterRoomList masterRoomList) { this.masterRoomList = masterRoomList; }

public List getRoomList() { return roomList; }

public void setRoomList(List roomList) { this.roomList = roomList; }

public int getRoomPrice() { return roomPrice; }

public void setRoomPrice(int roomPrice) { this.roomPrice = roomPrice; }

public int getNumOfGuests() { return numOfGuests; }

public void setNumOfGuests(int numOfGuests) { this.numOfGuests = numOfGuests; }

public Date getStayStart() { return stayStart; }

public void setStayStart(Date stayStart) { this.stayStart = stayStart; this.startDate = simpleDateFormat.format(stayStart); }

public Date getStayEnd() { return stayEnd; }

public void setStayEnd(Date stayEnd) { this.stayEnd = stayEnd; this.endDate = simpleDateFormat.format(stayEnd); } }