#include <string>
const int MAX_APPOINTMENTS = 10;
class Date
{
public:
	Date();
	// constructor. JDN is set to today
	// numberAppointments = 0

	Date(int mm, int dd, int yyyy);
	// constructor JDN is set to correspond to date specified by 
	// mm dd yyyy, if it is a valid date. Otherwise JDN is set 
	// for today. numberAppointments = 0;

	void 	setDate( int mm, int dd, int yyyy);
	// set JDN to appropriate value
	// precondition mm dd yyyy is a valid date

	void 	setDate( float jdn);
	// set JDN of Date object that activeted the method to jdn.

	float 	getJDN();
	// returns the Julian day number of the date object that activates the
	// method

	int 	getDayOfWeek();
	// return int 0..6 representing the day of the week

	void 	getMonthDayYear(int & m, int &d, int &y);
	// return ints representing the month, day, and year of a Date

	int 	numAppointments();
	// return the number of appointments 

	string 	ShowAppointment( int n);
	// if 0 <= n < numberAppointments
	// then return Appointment[n]
	// Otherwise return "Invalid Appointment Number" + n

	bool 	SetAppointment( string appt);
	// if  numberAppointments < MAX_APPOINTMENTS
	// then add appt as Appointment[numberAppointments++]
	// return true
	// Otherwise return false.

	bool 	equals(Date N);
	// Suppose this is activated by a date object D as 
	// D.equals(N). This returns true if and only if
	// D.JDN = N.JDN, 
	
	bool 	lessThan(Date N);
	// returns true only if D.JDN < N.JDN

	bool 	greaterThan(Date N);
	// returns true only if D.JDN > N.JDN

	void 	mailAppointments( string  subject, string sendTo );
	// send the appointments for the object that activated this 
	// method as email 
	// parameters 
	//    subject holds the subject of the email sent
	//    sendTo holds the email address that will receive the appointments
	// if there are no appointments then no email is sent, otherwise the
	// appointments are sent as one message

private:
 	float JDN;
 	int numberAppointments;
 	string appointments [MAX_APPOINTMENTS];
};