Question

Please write the program in C++

Problem Description:

• Design a class called Date. The class should store a date in three integers: month, day, and year.    

• Create the necessary set and get methods.      

• Design member functions to return the date as a string in the following formats:

                                    12/25/2012

                                    December 25, 2012

                                    25 December 2012

Input Validation:

• Do not accept values for day greater than 30 or less than 1.
• Do not accept values for month greater than 12 or less than 1.
• Do not accept values for year greater than 2025 or less than 1900.

Include the following methods:

Default Constructor: Initializes Date object to Jan 1, 1900

Parameterized Constructor

Copy Constructor

Destructor

static isValidYear predicate method: valid range: 1900 to current year.

static isValidMonth predicate method

static isValidDay predicate method for a given month

static isLeapYear predicate method

Answer 1

Screenshot of the code:

Sample Output:

Code to copy:

//Include required header files.

#include <iostream>

//Use the standard naming convention.

using namespace std;

//Define the class Date.

class Date

{

//Declare the required private member variables.

private:

    int day, month, year;

//Declare the prototype of required public

//member functions.

public:

    Date();

    Date(int d, int m, int y);

    Date(Date &dateObj);

    ~Date();

    void setDay(int d);

    void setMonth(int m);

    void setYear(int y);

    int getDay();

    int getMonth();

    int getYear();

    void dateFromatOne();

    void dateFormatTwo();

    void dateFormatThree();

    string getMonthName(int month);

    static bool isValidDay(int d);

    static bool isValidMonth(int m);

    static bool isValidYear(int y);

    static bool isLeapYear(int y);

};

//Define the default constructor of the class.

Date::Date()

{

//Initialize the member variables of the class with

//default values.

day = 1;

month = 1;

year = 1900;

}

//Define the parameterized constructor of the class.

Date::Date(int d, int m, int y)

{

//Set the required values of the member variables of

//the class by calling required setter functions.

setDay(d);

setMonth(m);

setYear(y);

}

//Define the copy constructor if the class.

Date::Date(Date &dateObj)

{

//Call the setter functions to set the values of

//member variables of the class with the values of

//the date class object given in the parameter.

setDay(dateObj.getDay());

setMonth(dateObj.getMonth());

setYear(dateObj.getYear());

}

//Define the destructor of the class.

Date::~Date()

{}

//Define the required setter functions for the member

//variables of the class.

void Date::setDay(int d)

{

//Start a while loop till the day value is not valid.

while(!isValidDay(d))

{

    //Keep prompting the user to enter the valid day

    //value.

    cout << "\nInvalid Day! Please enter a valid day ";

    cout << "between 1 and 30: ";

    cin >> d;

}

//Set the day value of the class.

day = d;

}

//Define the setMonth() function.

void Date::setMonth(int m)

{

//Start a while loop till the month value is not

//valid.

while(!isValidMonth(m))

{

    //Keep prompting the user to enter the valid

    //month value.   

    cout << "\nInvalid Month! Please enter a valid day between 1 and 12: ";

    cin >> m;

}

//Set the month value of the class.

month = m;

}

//Define the setYear() function.

void Date::setYear(int y)

{

//Start a while loop till the year value is not valid.

while(!isValidYear(y))

{

    //Keep prompting the user to enter the valid year

    //value.  

    cout << "\nInvalid Year! Please enter a valid day between 1900 and 2025: ";

    cin >> y;

}

  //Set the year value of the class.

year = y;

}

//Define the required getter functions of the class.

int Date::getDay()

{

return day;

}

int Date::getMonth()

{

return month;

}

int Date::getYear()

{

return year;

}

//Define the function dateFromatOne().

void Date::dateFromatOne()

{

//If the month value is less than 10, then display the

//month value a 0.

if(month < 10)

{

    cout << "0" << month << "/";

}

else

{

    cout << month << "/";

}

//If the day value is less than 10, then display the

//day value with a 0.

if(day < 10)

{

    cout << "0" << day << "/";

}

else

{

    cout << day << "/";

}

cout << year << endl;

}

//Define the function dateFormatTwo().

void Date::dateFormatTwo()

{

//Display the month name by calling the function

//getMonthName().

cout << getMonthName(month) << " ";

//If the day value is less than 10, then display the

//day value with a 0.

if(day < 10)

{

    cout << "0" << day << ", ";

}

else

{

    cout << day << ", ";

}

cout << year << endl;

}

//Define the function dateFormatThree().

void Date::dateFormatThree()

{

//If the day value is less than 10, then display the

//day value with a 0.

if(day < 10)

{

    cout << "0" << day << " ";

}

else

{

    cout << day << " ";

}

//Display the month name by calling the function

//getMonthName().

cout << getMonthName(month) << " ";

cout << year << endl;

}

//Define the function getMonthName().

string Date::getMonthName(int month)

{

//Declare and initialize the required variable to

//store the month name.

string monthName = "";

//Store the required month names to the variable

//monthName based on the value of the variable

//month.

if(month == 1)

{

    monthName = "January";

}

else if(month == 2)

{

    monthName = "February";

}

else if(month == 3)

{

    monthName = "March";

}

else if(month == 4)

{

    monthName = "April";

}

else if(month == 5)

{

    monthName = "May";

}

else if(month == 6)

{

    monthName = "June";

}

else if(month == 7)

{

    monthName = "July";

}

else if(month == 8)

{

    monthName = "August";

}

else if(month == 9)

{

    monthName = "September";

}

else if(month == 10)

{

    monthName = "October";

}

else if(month == 11)

{

   monthName = "November";

}

else if(month == 12)

{

    monthName = "December";

}

//Return the value of the monthName.

return monthName;

}

//Define the function isValidDay().

bool Date::isValidDay(int d)

{

//If the day value is less than or equal to 0 or

//greater than 30, then return false.

if(d <= 0 || d > 30)

{

    return false;

}

//Otherwise, return true.

else

{

    return true;

}

}

//Define the function isValidMonth().

bool Date::isValidMonth(int m)

{

//If the month is less than or equal to 0 or greater

//than 12, then return false.

if(m <= 0 || m > 12)

{

    return false;

}

//Otherwise, return true.

else

{

    return true;

}

}

//Define the function isValidYear().

bool Date::isValidYear(int y)

{

//If the year is less than 1900 or greater than 2025,

//then return false.

if(y < 1900 || y > 2025)

{

    return false;

}

//Otherwise, return true.

else

{

    return true;

}

}

//Define the function isLeapYear().

bool Date::isLeapYear(int y)

{

//If the year is fully divisible by 4, then return

//true.

if((y % 400) == 0)

{

   return true;

}

//If the year is fully divisible by 100, then return

//false.

if((y % 100) == 0)

{

    return false;

}

//If the year is fully divisible by 4, then return

//true.

if((y % 4) == 0)

{

    return true;

}

//Otherwise, return false.

return false;

}

//Start the execution of the main() method.

int main()

{

//Create an object of the class Date.

Date d1;

//Display the date in three different formats.

cout << "Date for object d1 in different formats:";

cout << endl;

d1.dateFromatOne();

d1.dateFormatTwo();

d1.dateFormatThree();

//Show if the current year is a leap year.

cout << "Is " << d1.getYear() << " a leap year? ";

//If the result of the function call isLeapYear() is

//true, then display yes otherwise, display no.

if(Date::isLeapYear(d1.getYear()))

{

    cout << "Yes" << endl;

}

else

{

    cout << "No" << endl;

}

//Create an object of the class Date by passing

//required parameters to the Date class object.

Date d2(25, 12, 2012);

//Display the date in three different formats.

cout << "\nDate for object d2 in different formats:";

cout << endl;

d2.dateFromatOne();

d2.dateFormatTwo();

d2.dateFormatThree();

//Show if the current year is a leap year.

cout << "Is " << d2.getYear() << " a leap year? ";

//If the result of the function call isLeapYear() is

//true, then display yes otherwise, display no.

if(Date::isLeapYear(d2.getYear()))

{

    cout << "Yes" << endl;

}

else

{

    cout << "No" << endl;

}

//Create another object.

Date d3(32, 12, 2020);

//Display the date in three different formats.

cout << "\nDate for object d3 in different formats:";

cout << endl;

d3.dateFromatOne();

d3.dateFormatTwo();

d3.dateFormatThree();

//Show if the current year is a leap year.

cout << "Is " << d3.getYear() << " a leap year? ";

//If the result of the function call isLeapYear() is

//true, then display yes otherwise, display no.

if(Date::isLeapYear(d3.getYear()))

{

    cout << "Yes" << endl;

}

else

{

    cout << "No" << endl;

}

return 0;

}