Answer to Question #215491 in C++ for qwe

Question

write a c++ program to create a class called date that has separate member data for day month year one constructor should initialize 

this data to 0 and another should initialize it to fixed values .another member function should display it The final member function 

should compare two objects of type date passed as arguments. A main() program should create two initialized date objects(among these one 

should contain today's date and another one should contain your date of birth) and one that isn’t initialized. Then it should compare 

the two initialized values together, leaving the result in the third date variable. Finally it should display the value of this 

third variable. Make appropriate member functions const. 

Answer 1

#include <iostream>
using namespace std;


//class called date that has separate member data for day month year
class Date{
	int day;
	int month;
	int year;
public:
	//one constructor should initialize this data to 0 
	Date(){
		this->day=0;
		this->month=0;
		this->year=0;
	}
	//d initialize it to fixed values
	Date(int d, int m, int y){
		this->day=d;
		this->month=m;
		this->year=y;


	}
	//function displays the date
	void display() const {
		cout<<day<<"/"<<month<<"/"<<year<<"\n";
	}
	//The function compares two objects of type date passed as arguments
	//Make appropriate member functions const. 
	Date compare(Date Date1,Date Date2) const{
		//aray of days in months
		int month[] = { 31, 28, 31, 30, 31, 30, 31,
			31, 30, 31, 30, 31 };


		if (Date2.day > Date1.day) {
			Date1.day+=  month[Date2.month - 1];
			Date1.month--;
		}
		if (Date2.month > Date1.month) {
			Date1.year--;
			Date1.month += 12;
		}
		
		int ageDays = Date1.day - Date2.day;
		int ageMonths = Date1.month - Date2.month;
		int ageYears =Date1.year - Date2.year;
		return Date(ageDays,ageMonths,ageYears);
	}


};
int main(){
	//A main() program should create two initialized date objects(among these one should contain today's date 
	Date todayDate(9,7,2021);
	cout<<"Today's date: ";
	todayDate.display();
	//and another one should contain your date of birth) and one that isn’t initialized.
	cout<<"Birth's date: ";
	Date birthDate(5,4,1995);
	birthDate.display();
	//Then it should compare the two initialized values together, leaving the result in the third date variable. 
	Date third = third.compare(todayDate, birthDate);
	//Finally it should display the value of this  third variable. 
	cout<<"\nThird date (age): ";
	third.display();


	system("pause");
	return 0;

}