Question

Using c++.Complete the implementation of the class date that represents dates written in the form day/month/year. Do not modify the main program. You must write the prototypes and the definitions of the methods of the class.

Declaration of Class Date /File: date.h A class representing dates in the form: day, month and year dat e s are written to a stream in the form day/mon th / year day number () returns the number of days since 1/1 of the current year including the current day days between returns the number of days between two dates not including the first day but including the last day. */ #i fndef DATE H #define DATE_H #include <iostream> #include <fstream> using name space std; class date private int day int month; int year ; public you fill in the method prototypes #endif /* DATE_H */

Answer 1

date.h:

#ifndef DATE_H
#define DATE_H
#include <iostream>
#include <fstream>
using namespace std;
class date{
   private:
       int day;
       int month;
       int year;
   public:
       date(int day, int month, int year);
       void write( ofstream & fout);
       int day_number();
       int days_between(date);
   };
#endif

date.cpp:

#include "date.h"
#include <cmath>

const int DAYS[ 12 ] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

date::date(int day, int month, int year) {
   this->day = day;
this->month = month;
this->year = year;
}

void date::write( ofstream & fout) {
   fout << day << "/" << month << "/" << year << endl;
}

int date::day_number() {
  
   int days = day;
   for (int i=0 ; i < month-1; i++) {
       days += DAYS[i];
   }
  
   return days;
}

int date::days_between( date a) {
   // initialize count using years and day
   long int days1 = year*365 + day;
  
// Add days for months in given date
for (int i=0; i< month - 1; i++)
days1 += DAYS[i];
  
// same for second date
long int days2 = a.year*365 + a.day;
for (int i=0; i< a.month - 1; i++)
days2 += DAYS[i];

return (days2 - days1);
}

testDate.cpp:

#include "date.h"

int main(void)
{
   ofstream fout("date.txt");
   date d(12,6,2016);
   date e(14,9,2018);
   fout<< "For the date ";
   d.write(fout);
   fout << endl;
   fout<<"Day number is " << d.day_number() <<endl;
   fout << "\n For the date ";
   e.write(fout);
   fout<<endl;
   fout<< "Day number is " << e.day_number() << endl;
   fout<<"\n Days between ";
   d.write(fout);
   fout<<" and ";
   e.write(fout);
   fout<< " = " << d.days_between(e) <<endl;
   fout.close();
   return 0;
}