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Question

Could you please explain this Q??

(Date Class Modification) Modify class Date in Fig. 18.10 to have the following capabilities:

a) Output the date in multiple formats such as
DDD YYYY
MM/DD/YY
June 14, 1992
b) Use overloaded constructors to create Date objects initialized with dates of the formats in part (a).
c) Create a Date constructor that reads the system date using the standard library functions of the <ctime> header and sets the Date members.

Fig 18.10 link in comment

Answer 1

you need the constructors
f.e. like this:
Date(string,int,int)

Answer 2

https://code.sololearn.com/cVmF6JAa00N3/?ref=app

Answer 3

#include<iostream>
#include<ctime>
using namespace std;

class Date {
int d,m,y;
public:
Date();
Date( int*, int*);
Date( int*, int*, int*);
Date( string , int*, int*);

};

Date::Date( int *dd, int *yy ):d(*dd),y(*yy)
{
cout<<d<<""<<y+1900;
}

Date::Date( int *dd, int *mm, int *yy):d(*dd),m(*mm),y(*yy)
{
cout<<m<<"/"<<d<<"/"<<y-100;
}
Date::Date(string mo , int *dd ,int *yy):d(*dd),y(*yy)
{

cout<<mo<<"/"<<d<<"/"<<y-100;
}

int main()
{

int date,month,year;string mo;
time_t now;
struct tm nowLocal;
now = time(NULL);
nowLocal = *localtime(&now);
date = nowLocal.tm_mday;
month = nowLocal.tm_mon+1;
year = nowLocal.tm_year;
if(month == 1)mo="Jan";
else if(month == 2)mo="Feb";
else if(month == 3)mo="Mar";
else if(month == 4)mo="April";
else if(month == 5)mo="May";
else if(month == 6)mo="Jun";
else if(month == 7)mo="July";
else if(month == 8)mo="Aug";
else if(month == 9)mo="Sep";
else if(month == 10)mo="Oct";
else if(month == 11)mo="Nov";
else if(month == 12)mo="Dec";
Date d;
d(date,year);
d(date,month,year);
d(mo,date,year);
//cout<<"Today is"<<nowLocal.tm_mday<<"/"<<nowLocal.tm_mon+1<<"/"<<nowLocal.tm_year-100;

}