Instructions are as follows:

Take your main file and split it into the following separate files making sure to include the header files as specified: dayType.h dayType.cpp (Add #include "dayType.h") dateType.h dateType.cpp (Add #include "dateType.h") extDateType.h (Add #include "dateType.h") extDateType.cpp (Add #include "extDateType.h") calendarType.h (Add #include "dayType.h" and #include "extDateType.h") calendarType.cpp (Add #include "calendarType.h") main.cpp (Add #include "calendarType.h") Once you've done that, see if you can get the program to compile and we can go from there. Resubmit once it compiles. .............................................................................................................

Heres the source code: //Header file #include #include using namespace std; class dayType { public: dayType(); string day[8]; int dayNumber; int tempDay; void setDay(int day); void printDay(); void returnDay(int &day); void returnNextDay(); void returnPreviousDay(); void calculateDay(int changeDay); }; //Implementation file #include  #include  using namespace std; void dayType::printDay() { cout << "Today is: " << day[dayNumber] << "day" << endl;}; void dayType::setDay(int day) { dayNumber=day;}; void dayType::returnDay(int &day) { day=dayNumber;}; void dayType::returnNextDay() { dayNumber++;}; void dayType::returnPreviousDay() { dayNumber--;}; void dayType::calculateDay(int changeDay) { tempDay=(dayNumber+changeDay); dayNumber=(tempDay%7);}; //Main file #include  using namespace std; int main() { dayType today; int day; int changeDay; cout << "------------------------------------------------------------------" << endl; cout << "Default day is Sunday " << endl; cout << "Type in a number corresponding to set the day" << endl << "1: Monday" << endl << "2: Tuesday" << endl << "3: Wednesday" << endl << "4: Thursday" << endl << "5: Friday" << endl << "6: Saturday" << endl << "7: Sunday" << endl; while (day<0 || day>7) cin >> day; today.setDay(day); today.printDay(); today.returnDay(day); today.printDay(); cout << "-----------------------------------------------------------------" << endl; cout << "If it were tomorrow, then the following statement would be true: " << endl; today.returnNextDay(); today.printDay(); today.dayNumber--; cout << "-----------------------------------------------------------------" << endl; cout << "If it were yesterday, then the following statement would be true:" << endl; today.returnPreviousDay(); today.printDay(); today.dayNumber++; cout << "-----------------------------------------------------------------" << endl; cout << "Add a number of days to today and see what day it will be: " << endl; cin >> changeDay; today.calculateDay(changeDay); today.printDay(); return 0; }; dayType::dayType() { dayNumber=1; day[1]="Mon"; day[2]="Tues"; day[3]="Wednes"; day[4]="Thurs"; day[5]="Fri"; day[6]="Satur"; day[7]="Sun"; }; extDateType extDateType.h #pragma once #include  #include "dateType.h" using namespace std; class extDateType: public dateType { public: static string Name_Month[12]; void printLongDate(); void setDate(int, int, int); void setMonth(int m); void printLongMonthYear(); extDateType(); extDateType(int, int, int); private: string dName_Month; }; extDateTypeImp.cpp #include  #include  #include "dateType.h" #include "extDateType.h" using namespace std; // give the names of the month in order to format it out void extDateType::printLongDate() { cout << dName_Month << " " << get_day() << ", " << get_Year(); } void extDateType::printLongMonthYear() { cout << dName_Month << " " << get_Year(); } void extDateType::setDate(int m, int d, int y) { dateType::setDate(m, d, y); dName_Month = Name_Month[m - 1]; } void extDateType::setMonth(int m) { dateType::setMonth(m); dName_Month = Name_Month[m - 1]; } string extDateType::Name_Month[] = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}; extDateType::extDateType() { dName_Month = "January"; } extDateType::extDateType(int m, int n, int d) : dateType(m, n, d) { dName_Month = Name_Month[m - 1]; } dateType.h #pragma once class dateType { public: dateType (int month=1, int day=1, int year=0001); void setDate(int month, int day, int year); void setMonth(int); void setDay(int); void setYear(int); void print() const; int numberOfDaysLeft(); int numberOfDaysPassed(); void ADD_TO_DATE(int nDays); int get_Month() const; int get_day() const; int get_Year() const; int get_num_days_month(); bool Leap_Year(); private: int z_Month; int z_Day; int z_Year; }; dateTypeImp.cpp #include  #include "dateType.h" using namespace std; void dateType::setDate(int month, int day, int year) { if (year >= 1) z_Year = year; else z_Year = 0001; if (1 <= month && month <= 12) z_Month = month; else z_Month = 1; switch (z_Month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: if(1 <= day && day <= 31) z_Day = day; else z_Day = 1; break; case 4: case 6: case 9: case 11: if (1 <= day && day <= 30) z_Day = day; else z_Day = 1; break; case 2: if (Leap_Year()) { if (1 <= day && day <= 29) z_Day = day; else z_Day = 1; } else { if (1 <= day && day <= 28) z_Day = day; else z_Day = 1; } } } void dateType::setMonth(int m) { z_Month = m; } void dateType::setDay(int d) { z_Day = d; } void dateType::setYear(int y) { z_Year = y; } void dateType::print() const { cout << z_Month << "-" << z_Day << "-" << z_Year; } int dateType::get_Month() const { return z_Month; } int dateType::get_day() const { return z_Day; } int dateType::get_Year() const { return z_Year; } int dateType::get_num_days_month() { int numDays; switch (z_Month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: numDays = 31; break; case 4: case 6: case 9: case 11: numDays = 30; break; case 2: if(Leap_Year()) numDays = 29; else numDays = 28; } return numDays; } bool dateType::Leap_Year() { if (((z_Year % 4 == 0) && (z_Year % 100 != 0)) || z_Year % 400 == 0) return true; else return false; } dateType::dateType(int month, int day, int year) { z_Month = month; z_Day = day; z_Year = year; } int dateType::numberOfDaysPassed() { int dayspassed=0; for (int month=1;monthreturn dayspassed; } int dateType::numberOfDaysLeft() { int daysleft; int days_passed=0; for (int month=1;monthif (Leap_Year()) return 366 - numberOfDaysPassed(); else return 365 - numberOfDaysPassed(); return daysleft; }; void dateType::ADD_TO_DATE(int nDays) { int day=get_day()+nDays; int month=get_Month(); int countm=0; int year=0; while (day>get_day()+nDays) { day=day-get_day(); countm++; if (countm==12) { year++; countm=0; } if(month>=12) month=0; month++; } setMonth (get_Month()+countm); setDay(day); setYear (get_Year()+year); } main.cpp #include  #include "dateType.h" #include "extDateType.h" using namespace std; int main() { dateType d(1, 2, 1960); extDateType ed(6, 10, 1981); int num; ed.printLongDate(); cout << endl; ed.print(); cout << endl; cout << "Days gone in the year: " << ed.numberOfDaysPassed(); cout << endl; cout << "Days left in the Year: " << ed.numberOfDaysLeft() << endl; ed.print(); cout << endl; system("pause"); return 0; }