//DISPLAY 10.3 Class with a Member Function 
//Program to demonstrate a very simple example of a class. 
//A better version of the class DayOfYear will be given in Display 10.4.
#include <iostream>
using namespace std;

class DayOfYear
{
public:
    void output( );
    void input ();
    bool equalTo (DayOfYear secondDay);

    int month;
    int day;
};


int main( )
{
    DayOfYear today, birthday;
  
    today.output();

    //InitDayOfYear (today);
    today.input();
    birthday.input();


    cout << "Today's date is ";
    today.output( );
    cout << "Your birthday is ";
    birthday.output( );

    if (today.equalTo(birthday)) //
        cout << "Happy Birthday!\n";
    else
        cout << "Happy Unbirthday!\n";

    return 0;
}
//Uses iostream:
void DayOfYear::output( )
{
    cout << "month = " << month
         << ", day = " << day << endl;
}

void DayOfYear::input()
{
    cout << "Enter a date:\n";
    cout << "Enter month as a number: ";
    cin >> month; //calling object's month member variable 
    cout << "Enter the day of the month: ";
    cin >> day;
}

bool DayOfYear::equalTo (DayOfYear secondDay)
{
      if (month==secondDay.month && day==secondDay.day)
	      return true;
      else
	      return false;
}