Answer to Question #195404 in C++ for Muhammad Rehan

Question

Consider the following

Class date

{

private:

Int day;// from 1 to 31

Int month;// from 1 to 12

Int year;// from 2000 onwards

public:

Void advance() ;// move to next day

} ;

Task#1:

Implement a constructor that initialize new object of date to be set to the 1st of January 2000.

Task#2:

Implement setters for day, month and year.

Task#3:

Implement the advance method which moves to the next day, ensuring that all data members are updated appropriately.

Answer 1

#include <iostream>
using namespace std;




class date{
private:
	int day;// from 1 to 31
	int month;// from 1 to 12
	int year;// from 2000 onwards
public:
	//Task#1:
	//Implement a constructor that initialize new object of date to be set to the 1st of January 2000.
	date(){
		this->day=1;
		this->month=1;
		this->year=2000;
	}
	//Task#2:
	//Implement setters for day, month and year.
	void setDay(int day){
		this->day=day;
	}
	void setMonth(int month){
		this->month=month;
	}
	void setYear(int year){
		this->year=year;
	}


	//Task#3:
	//Implement the advance method which moves to the next day, ensuring that all data members are updated appropriately.
	void advance(){// move to next day
		if (day > 0 && day < 28)	
			day += 1;
		if (day == 28)
		{
			if (month == 2)
			{
				if ((year % 400 == 0) || (year % 100 != 0 || year % 4 == 0))
				{
					day = 29;
				}
				else
				{
					day = 1;
					month = 3;
				}
			}
			else	
				day += 1;
		}
		if (day == 29)	
		{
			if (month == 2)
			{
				day = 1;
				month = 3;
			}
			else
				day += 1;
		}
		if (day == 30)	
		{
			if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12)
				day += 1;
			else
			{
				day = 1;
				month += 1;
			}
		}
		if (day == 31)
		{
			day = 1;
			if (month == 12)
			{
				year += 1;
				month = 1;
			}
			else
				month += 1;
		}


		cout << "Tomorrow's date:\n";
		if (day < 10)	
		{
			cout << "0" << day << "/";
		}
		else
			cout <<day << "/";
		if (month < 10)	
		{
			cout << "0" << month << "/";
		}
		else
			cout << month << "/";
		cout << year;
	}


};


int main (){


	date date;
	date.advance();


	date.setDay(15);
	date.setMonth(5);
	date.setYear(2020);
	cout<<"\n\n";
	date.advance();
	cout<<"\n\n";

	system("pause");
	return 0;
}