Write a date class with data members dd, mm, yy. Write a constructor and overload ++ operator, << operator and >> operator.

 

#include<iostream>

using namespace std;

class day

{

    private:

            int month,year;

            int date;

    public:

            day(){};

            void setdata(int , int , int);

            friend istream & operator >>(istream &,day &);

            friend ostream & operator <<(ostream &,day &);

            day operator ++();

            void display();

};

void day :: setdata(int d,int m, int y)

{

    date=d;

    month=m;

    year=y;

}

istream& operator >>(istream &in ,day &c)

{

    in>>c.date>>c.month>>c.year;

    return(in);

}

ostream& operator <<(ostream &out ,day &c)

{

    out<<"date = "<<c.date<<"\nmonth = "<<c.month<<"\nyear = "<<c.year;

    return(out);

}

day day :: operator ++()

{

    day tmep;

    tmep.date = ++date;

    if(date == 32)

    {

        date=1;

        month++;

    }

    tmep.month = ++month;

    if(month==13)

    {

        month = 1;

        year++;

    }

    tmep.year = ++year;

    return tmep;

}

void day :: display()

{

    cout<<"after increatement !!! "<<endl;

    cout<<"date = "<<date<<"\nmonth = "<<month<<"\nyear = "<<year;

}

int main()

{

    day da;

    cout<<"enter date , month , year "<<endl;

    cin>> da;

    cout<<da<<endl;

    ++da;

    da.display();

}

output :

enter date , month , year 23 5 2002 date = 23 month = 5 year = 2002 after increatement !!! date = 24 month = 6 year = 2003