That is, copy the code from Month.cpp and paste it into your file lab4.cpp.

#include

#include

using namespace std;

class Month {

friend class Date;

friend ostream& operator

private:

enum EMonth { Jan=1, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec };

Month() : month(Jan) {} // default constructor

Month(int im) : month( static_cast(im) ) {} // value constructor

void setMonth(string m) { month = StringToEMonth(m); } // mutator functions

void setMonth(int im) { month = static_cast(im); }

/* Private helper member functions */

EMonth StringToEMonth(string);

int MonthToInt() { return static_cast(month); }

string MonthToString();

string MonthToString2();

EMonth month;

};

/* Definitions of helper member functions for class Month */

Month::EMonth Month::StringToEMonth(string m) {

if (m == "Jan") return Jan;

else if (m == "Feb") return Feb;

else if (m == "Mar") return Mar;

else if (m == "Apr") return Apr;

else if (m == "May") return May;

else if (m == "Jun") return Jun;

else if (m == "Jul") return Jul;

else if (m == "Aug") return Aug;

else if (m == "Sep") return Sep;

else if (m == "Oct") return Oct;

else if (m == "Nov") return Nov;

else if (m == "Dec") return Dec;

else {

cerr

exit(1);

}

}

string Month::MonthToString() {

switch (month) {

case Jan: return "Jan";

case Feb: return "Feb";

case Mar: return "Mar";

case Apr: return "Apr";

case May: return "May";

case Jun: return "Jun";

case Jul: return "Jul";

case Aug: return "Aug";

case Sep: return "Sep";

case Oct: return "Oct";

case Nov: return "Nov";

case Dec: return "Dec";

default:

cerr

exit(1);

}

}

string Month::MonthToString2() {

switch (month) {

case Jan: return "January";

case Feb: return "February";

case Mar: return "March";

case Apr: return "April";

case May: return "May";

case Jun: return "June";

case Jul: return "July";

case Aug: return "August";

case Sep: return "September";

case Oct: return "October";

case Nov: return "November";

case Dec: return "December";

default:

cerr

exit(1);

}

}

/* Definition of friend function operator

ostream& operator

out

return out;

}