How to get system date in c++

Assignment 1- Date class

Necessary skills: Basic class design, constructors and member functions, basic iostream output formatting

Description

In this assignment, you'll create a C++ Date class that stores a calendar date.. You'll test it using the supplied test main() function (attached below).

In your class, use three private integer data member variables to represent the date (month, day, and year).

Supply the following public member functions in your class.

A default constructor (taking no arguments) that initializes the Date object to Jan 1, 2000.

A constructor taking three arguments (month, day, year) that initializes the Date object to the parameter values.

It sets the Date's year to 1900 if the year parameter is less than 1900

It sets the Date's month to 1 if the month parameter is outside the range of 1 to 12.

It sets the Date's day to 1 if the day parameter is outside the range of days for the specific month. Assume February always has 28 days for this test.

A getDay member function that returns the Date's day value.

A getMonth member function that returns the Date's month value.

A getYear member function that returns the Date's year value.

A getMonthName member function that returns the name of the month for the Date's month (e.g. if the Date represents 2/14/2000, it returns "February"). You can return a const char* or a std::string object from this function.

A print member function that prints the date in the numeric form MM/DD/YYYY to cout (e.g. 02/14/2000). Month and day must be two digits with leading zeros as needed.

A printLong member function that prints the date with the month's name in the form dd month yyyy (e.g. 14 February 2000) to cout. This member function should call the getMonthName() member function to get the name. No leading zeroes required for the day.

The class data members should be set to correct values by the constructor methods so the get and print member functions simply return or print the data member values. The constructor methods must validate their parameter values (eg. verify the month parameter is within the range of 1 to 12) and only set the Date data members to represent a valid date, thus ensuring the Date object's data members (i.e. its state) always represent a valid date.

The print member function should output the date in the format MM/DD/YYYY with leading zeros as needed, using the C++ IOStreams cout object. To get formatting to work with C++ IOStreams (cout), look at the setw() and setfill() manipulator descriptions, or the width() and fill() functions in the chapter on the C++ I/O System.

#include
#include
#include
using namespace std; // or use individual directives, e.g. using std::string;

class Date
{

// methods and data necessary

};

Use separate files for the Date class definition (in Date.h), implementation of the member functions (Date.cpp), and the attached test main() function (DateDemo.cpp). The shortest member functions (like getDay() ) may be implemented in the class definition (so they will be inlined). Other member functions should be implemented in the Date.cpp file. Both Date.cpp and DateDemo.cpp will need to #include the Date.h file (since they both need the Date class definition in order to compile) and other include files that are needed (e.g. iostream, string, etc).

Sample code and output

// DateDemo.cpp
// Note - you may need to change the definition of the main function to
// be consistent with what your C++ compiler expects.
int main()
{
Date d1; // default ctor
Date d2(7, 4, 1976); // July 4'th 1976
Date d3(0, 15, 1880);// Adjusted by ctor to January 15'th 1900

d1.print(); // prints 01/01/2000
d1.printLong(); // prints 1 January 2000
cout << endl;

d2.print(); // prints 07/04/1976
d2.printLong(); // prints 4 July 1976
cout << endl;

d3.print(); // prints 01/15/1900
d3.printLong(); // prints 15 January 1900
cout << endl;

cout << "object d2's day is " << d2.getDay() << endl;
cout << "object d2's month is " << d2.getMonth() << " which is " << d2.getMonthName() << endl;
cout << "object d2's year is " << d2.getYear() << endl;
}

main() test code

Use the attached DateDemo.cpp source file to test your class.

Save this source as a separate DateDemo.cpp source file that contains the supplied main() function. Compile your Data.cpp file first, then this DateDemo.cpp next.

Here is the attached DateDemo.cpp code

// DateDemo.cpp

#include
#include
#include
using std::cout;
using std::endl;
using std::setfill;
using std::setw;
using std::string;

#include "Date.h"

// note - you may need to change the definition of the main function to
// be consistent with what your C++ compiler expects.

//int _tmain(int argc, _TCHAR* argv[])
int main()
{
Date d1; // default ctor
Date d2(7, 4, 1976); // July 4'th 1976
Date d3(0, 15, 1880);// Adjusted by ctor to January 15'th 1900

d1.print(); // prints 01/01/2000
d1.printLong(); // prints 1 January 2000
cout << endl;

d2.print(); // prints 07/04/1976
d2.printLong(); // prints 4 July 1976
cout << endl;

d3.print(); // prints 01/15/1900
d3.printLong(); // prints 15 January 1900
cout << endl;

cout << "object d2's day is " << d2.getDay() << endl;
cout << "object d2's month is " << d2.getMonth() << " which is " << d2.getMonthName() << endl;
cout << "object d2's year is " << d2.getYear() << endl;

return 0;
}

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