Question

C++ programming question

Topic: Class 'Date'

Hello everybody, can some one help me...

... Write a class Date with the following properties:
a) Data elements of the class are day, month, year. All three data elements are defined by the Type int.
b) A set and a get element function are to be provided for each data element. In
Within the framework of this task, it should be assumed that the values that are passed for day and year,
are correct. The value for the month should be checked to see whether it is in the range from 1 to 12, and
If this is not the case, a message should be issued and the value set to 1.
c) The class should have a constructor with three parameters that contains the three data elements with these parameters
is initialized.
d) An element function toString is to be made available, which can be used day, month, and year with
returns points separated as a string, e.g. 21.12.2018
Use the function std::to_string from <string> here as well.
e) First sketch a class diagram (like the one in task 2 above) and then set it to
class diagram into a C++ class definition in a header file. Then implement the implementations
of the individual element functions in a separate implementation file.
Use the class Date in an application program that demonstrates the properties of the class.

Thank you in advance.

Answer 1

Here is the C++ implementation for the problem :

date.h (Header File) - This defines the class definition

class Date{
private :
int day;
int month;
int year;
  
public :
Date();
Date(int day,int month,int year);
void setDay(int day);
void setMonth(int month);
void setYear(int year);
int getDay();
int getMonth();
int getYear();
std::string toString();
};

date.cpp (This defines the methods of Date class) -

#include<bits/stdc++.h>
#include"date.h"
Date::Date(){}

Date::Date(int d,int m,int y){
day = d;
month = m;
year = y;
}

void Date::setDay(int d){
day = d;
}

void Date::setMonth(int m){
month = m;
}

void Date::setYear(int y){
year = y;
}

int Date::getDay(){
return day;
}

int Date::getMonth(){
return month;
}

int Date::getYear(){
return year;
}

std::string Date::toString(){
std::string s = std::__cxx11::to_string(day) + "." + std::__cxx11::to_string(month) + "." + std::__cxx11::to_string(year) ;
return s;
}

use_date_class.cpp (This c++ file uses the Date class) -

#include <iostream>
#include"date.h"
using namespace std;

int main()
{
Date obj;
int day,month,year;
cout<<"Enter the day : ";
cin>>day;
obj.setDay(day);
cout<<"Enter the month : ";
cin>>month;
if(month >12 && month <1){
cout<<"Entered month is invalid. Month is getting initialized to 1 by default"<<endl;
obj.setMonth(1);
}
else{
obj.setMonth(month);
}
cout<<"Enter the year : ";
cin>>year;
obj.setYear(year);
cout<<"Date entered by you is : "<<obj.toString()<<endl;
   return 0;
}

To compile the above code run the following command-

g++ date.cpp use_date_class.cpp

in your terminal and run it using command

./a.out

Here is the screenshot of the output of code -