Define a class called Month. Your class will have one member variable of type int to represent a month (1 for January, 2 for February, and so forth). The complete class will include all the following member functions:

- a constructor to set the month using the first three letters in the name of the month.

- a constructor to set the month using an integer argument (1 for January, 2 for February, and so forth),

- a default constructor,

- an input function that reads the month as an integer,

- an input function that reads the month as the first three letters in the name of the month,

- an output function that outputs the month as an integer,

- an output function that outputs the first three letters in the name of the month,

- a member function that returns the next month as a value of type Month.

Embed the class definition in a test program.

Using the code:

Month.h:

#ifndef MONTH_H

#define MONTH_H

#include

#include

using namespace std;

class Month

{

public:

Month();

Month(int);

Month(string);

~Month();

void inputInt();

void inputString();

void outputInt();

void outputString();

Month nextMonth();

private:

int monthInt;

};

#endif

Month.cpp

#include "Month.h"

string Month_Int2String(int month_int) {

switch (month_int) {

case 1: return "Jan";

case 2: return "Feb";

case 3: return "Mar";

case 4: return "Apr";

case 5: return "May";

case 6: return "Jun";

case 7: return "Jul";

case 8: return "Aug";

case 9: return "Sep";

case 10: return "Oct";

case 11: return "Nov";

case 12: return "Dec";

default: return "Not Accepted";

}

}

int Month_String2Int(string month_str) {

if (month_str == "Jan")

return 1;

else if (month_str == "Feb")

return 2;

else if (month_str == "Mar")

return 3;

else if (month_str == "Apr")

return 4;

else if (month_str == "May")

return 5;

else if (month_str == "Jun")

return 6;

else if (month_str == "Jul")

return 7;

else if (month_str == "Aug")

return 8;

else if (month_str == "Sep")

return 9;

else if (month_str == "Oct")

return 10;

else if (month_str == "Nov")

return 11;

else if (month_str == "Dec")

return 12;

else {

cout << "Wrong, The program will be terminated" << endl;

system("pause");

exit(0);

}

}

Month::Month() {

// assign 1 to monthInt

}

Month::Month(int M) {

// assign M to monthInt, make sure that M is between 1 and 12

// if it's not, show an error Message

}

Month::Month(string Mstring) {

// call the function Month_String2Int

// assign the return value to monthInt

}

Month::~Month() { }

void Month::inputInt() {

// create an integer variable, call it M

// ask the user to enter a value of M

// assign M to monthInt, make sure that M is between 1 and 12

// if it's not, show an error Message

}

void Month::inputString()

{

// create a string variable, call it S

// ask the user to enter a value of S

// call the function Month_String2Int

// assign the return value to monthInt

}

void Month::outputInt() {

// print the monthInt value

}

void Month::outputString() {

// call the function Month_Int2String to print the month as a string

}

Month Month::nextMonth() {

if (this->monthInt == 12)

this->monthInt = 1;

else

this->monthInt = this->monthInt + 1;

return *(this);

}

Source.cpp

#include "Month.h"

void main() {

// create an object of Month test all the methods in Month class

system("pause");

}