Re: [Dev-C++] protected and private in c++ classes

[Siva C. <siv...@ya...>]

hi Daniel,

I agree on your explaination for private but I am kind
of confused with your explaination on protected. what
do you mean by "//class employee now has private:
..."?

...and what do you mean by "...public to that class"?

Siva Chandra

--- Daniel Glenfield <sp...@ho...> wrote:
> I don't think that is quite correct.
> 
> Without getting too nerdy, private specifies that
> the member variable or 
> method (methods are usually public, not private) can
> only be accessed by a 
> method of that class, and cannot be accessed
> directly.
> So if I have a private member
> int EmployeeID;
> I cannot do
> 
> MyObject.EmployeeID = 12345;
> Because it is private. What I need is a public
> method like this
> 
> void SetEmployeeID(int Num)
> {
>     EmployeeID = Num;
> }
> Then I can do MyObject.SetEmployeeID(12345);
> 
> 
> Protected means the members are public to that
> class, but if a class is 
> derived from it then they become private. e.g.
> 
> class Person
> {
> protected:
> double DNASequence;
> }
> 
> class Employee : public Person
> {
>     // class Employee now has
>     // private :
>     // double DNASequence;
> 
> }
> 
> Let me know if any of this sounds wrong.
> 
> Daniel
> 
> 
> >From: Per Westermark <pw...@ia...>
> >To: studioartoni <stu...@li...>
> >CC: Dev...@li...
> >Subject: Re: [Dev-C++] protected and private in c++
> classes
> >Date: Tue, 9 Mar 2004 11:15:18 +0100 (CET)
> >
> >Private is only for methods of the class.
> >
> >Protected are also available to all inherriting
> classes.
> >
> >/Per W
> >
> >On Tue, 9 Mar 2004, studioartoni wrote:
> >
> > > Excuse the question,
> > > but which is the difference between 'protected'
> and 'private' in c++ 
> >classes?
> > > Thank you.
> > >
> > >
> >
> >
> >
>
>-------------------------------------------------------
> >This SF.Net email is sponsored by: IBM Linux
> Tutorials
> >Free Linux tutorial presented by Daniel Robbins,
> President and CEO of
> >GenToo technologies. Learn everything from
> fundamentals to system
>
>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> >_______________________________________________
> >Dev-cpp-users mailing list
> >Dev...@li...
> >TO UNSUBSCRIBE:
> http://www23.brinkster.com/noicys/devcpp/ub.htm
>
>https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> 
>
_________________________________________________________________
> Find a cheaper internet access deal - choose one to
> suit you. 
> http://www.msn.co.uk/internetaccess
> 
> 
> 
>
-------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux
> Tutorials
> Free Linux tutorial presented by Daniel Robbins,
> President and CEO of
> GenToo technologies. Learn everything from
> fundamentals to system
>
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE:
> http://www23.brinkster.com/noicys/devcpp/ub.htm
>
https://lists.sourceforge.net/lists/listinfo/dev-cpp-users


__________________________________
Do you Yahoo!?
Yahoo! Search - Find what you’re looking for faster
http://search.yahoo.com