On Mon, 3 Apr 2006, John Turner wrote:
I think you are right that he should ask his instructor or
even his fellow students. I the recent online courses I
have taken at NCSU they had message boards for students to
discuss assignments and they were often used to work out
issues.
Replies to message board take about a day. I couldn't rely
on a quick reply on a sunday afternoon. There weren't any
postings about this homework yet, so it seemed unlikely that
any of the other students would reply. I did get a reply
late in the day to say that accessors was a reasonable way
to go (as much advice as I'm likely to get in this class
from the instructor), but only after I'd already got the
same information from this list. I have limited time to do
homework and it's mostly on sundays. The help I got here
allowed me to do 4 more hours of homework than I would have
otherwise.
All that said I think if Joseph would look at some C++ or
even Java programming books he could find some examples on
implementing a link list.
Yesterday I said that I can do a linked list with the node
being a struct (with data and next). With the node being an
object, I had to use accessors to get info I wanted.
Compared to getting data from a public struct, this was a
lot more work, and without any examples of classes using
classes in the course, it occured to me that I had the wrong
design. I had asked earlier in the class how to have a class
use a class, but only got a dephic statement that it was
done all the time. In response to such a direct request, I
decided that he wasn't going to tell me.
Trying to figure out what I should be doing, I googled all
over the place and found lots on lists (all with basic types
and structs for data) but couldn't find anything I could
understand for the nodes being an object. At that stage I
was stuck and posted here. Statements yesterday that
accessors were an OK way to go, allowed me to keep going.
The link I got this morning to a page at St Vincent's
College was helpful, having the node be an object and showed
me that the submarine should be a separate class to the Node
class.
Maybe it isn't in the class text, but it is in many other
texts.
The class notes and the class textbook don't have anything
on list nodes being objects. Most of the learning in the
class goes on in the homework. I've had to figure out all of
the 'structors (except the constructor), helpers and the
overloaded operators myself. This week's homework. although
nominally about linked lists (which we can do) would appear
to be on having a class use another class. We aren't given
any restrictions on how we find these things out. Presumably
we're supposed to find out any way we can.
Joe
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Joseph Mack NA3T EME(B,D), FM05lw North Carolina
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