Question

This is what I have so far.

The out print I am looking for is

Date is 7/22/2020

New month: 9

New day: 5

New Year: 2020

Date is 9/5/2020

#include

  
class Date {
   public:
       Date::Date(int dateMonth, int dateDay, int dateYear)
       month{dateMonth}, day{dateDay}, int dateYear}{}
      
       //void displayDate();     
   //set month
       void Date::setMonth(std::int dateMonth){
           month = dateMonth;
       }
       //retrieve month
       std:: string getMonth() {
           return month;
       }
      
          
       //set day
       void setDay(std::int dateDay){
           day = dateDay;
       }
       //Retrieve day
       std:: string getDay() {
           return day;
       }
      
       ;
   //set year
       void setYear(std::int dateYear){
           year = dateYear;
       }
       //retrieve year
       std:: int getYear() {
           return year;
       }
  
  
   private:
  
       std::int day;
       std::int month;
       std::int year;
      
      

      
};

#include <iostream>
#include<string>
#include "Date.h"

using namespace std;

int main() {
   Date myMonth{};
  
   cout<<"Date is: " ;

   cout<<"\nNew month: ";
   string theMonth;
   getline(cin, theMonth);
   myMonth.setMonth(theMonth);
          
       Date myDay;  
      
   cout<<"New day: ";
   string theDay;
   getline(cin, theDay);
   myDay.setDay(theDay);
  
   Date myYear;  
      
   cout<<"New year: ";
   string theYear;
   getline(cin, theYear);
   myYear.setYear(theYear);
  
   cout<<"Date is: "<< theMonth <<"/" <<theDay<< "/"<< theYear;
      
  
  
}

Answer 1

Date.h

#ifndef DATE_H
#define DATE_H
#include<iostream>
class Date {
   public:
           Date(){day=month=year=0;};
       Date(int dateMonth, int dateDay, int dateYear){
        month = dateMonth;
                day = dateDay; 
                year = dateYear;
        }
      
      //display date
       void displayDate(){
         std::cout<<"Date is "<<month<<"/"<<day<<"/"<<year<<std::endl;
           }   
        //set month
       void setMonth(int dateMonth){
           month = dateMonth;
       }
       //retrieve month
       int getMonth() {
           return month;
       }
      
       //set day
       void setDay(int dateDay){
           day = dateDay;
       }
       //Retrieve day
       int getDay() {
           return day;
       }
      
       ;
   //set year
       void setYear(int dateYear){
           year = dateYear;
       }
       //retrieve year
       int getYear() {
           return year;
       }
  
  
   private:
                int day;
       int month;
       int year;    
};

#endif

mainDriver.cpp

#include <iostream>
#include<string>
#include "Date.h"

using namespace std;

int main() {
   Date oldDate(7,22,2020);
   oldDate.displayDate() ;

   Date newDate;
   
   cout<<"New month: ";
   int theMonth;
   cin >> theMonth;
   
   newDate.setMonth(theMonth);
      
   cout<<"New day: ";
   int theDay;
   cin >> theDay;
   
   newDate.setDay(theDay);
      
   cout<<"New year: ";
   int theYear;
   cin >> theYear;
   
   newDate.setYear(theYear);
  
   newDate.displayDate();
  
}

How to Test and Run:(Unix or Linux machine)

Put both files (Date.h and mainDriver.cpp) in the same folder or directory. Go to that directory in the terminal and run below command one by one.

       g++ mainDriver.cpp

       ./a.out

On Window, you can compile and run the file mainDriver.cpp in any c++ compiler or IDE after putting both the files in the same directory.

Output:

Windows                                                   Linux