help with files

Reply

Join Date: Jul 2008
Posts: 21
Reputation: azwraith69 is an unknown quantity at this point 
Solved Threads: 0
azwraith69's Avatar
azwraith69 azwraith69 is offline Offline
Newbie Poster

help with files

 
0
  #1
Jan 7th, 2009
hello,, my first post here..
im a 1st year CS student..

i need a help on having the idea of how to make this assignment..
i need to make a program,,a question bank,, with this functions:

1. Add a question
2. Delete question(s)
3. Modify a question
4. Display question(s)
a. All questions
b. Questions by subject
c. Questions by subject-level (category)
5. Search for a question by keyword (displays questions that have the keyword found in the question or answer)
(THERE ARE 7 SUBJECTS ad 5 LEVELS,, so 35 CATEGORIES all in all)

The questions database must be persistent across usage sessions. That is to say, changes made to the Bank will have to be retained once the program is closed and then re-opened. To make this possible, the filesystem is used to store the questions for the quiz game. Load it once at startup, then save before quitting. Also, the Bank must be able to store an unlimited number of questions.

is it wise to use vectors here, then store them to files? if so,, how?
i think its easier to manipulate many textfiles,, instead of one,, maybe 1 textfile per subject..

i'm not that good in file processing and manipulations(like my english!).. so i really need help how to do this one... even without codes,, just specific ideas and algorithms.... thX..
Last edited by azwraith69; Jan 7th, 2009 at 3:17 am. Reason: just to erase something
Reply With Quote Quick reply to this message  
Join Date: Apr 2008
Posts: 670
Reputation: Freaky_Chris is a jewel in the rough Freaky_Chris is a jewel in the rough Freaky_Chris is a jewel in the rough 
Solved Threads: 113
Freaky_Chris's Avatar
Freaky_Chris Freaky_Chris is offline Offline
Practically a Master Poster

Re: help with files

 
0
  #2
Jan 7th, 2009
Read all of the questions into a vector, which is simple enough just takes one loop. Then you can append to the vector and you can remove items from the vector. Then before quitting besure to clear the text file and re-write everything stored in your vector!

Chris
Knowledge is power -- But experience is everything
Reply With Quote Quick reply to this message  
Join Date: Jul 2008
Posts: 21
Reputation: azwraith69 is an unknown quantity at this point 
Solved Threads: 0
azwraith69's Avatar
azwraith69 azwraith69 is offline Offline
Newbie Poster

Re: help with files

 
0
  #3
Jan 7th, 2009
Originally Posted by Freaky_Chris View Post
Read all of the questions into a vector, which is simple enough just takes one loop. Then you can append to the vector and you can remove items from the vector. Then before quitting besure to clear the text file and re-write everything stored in your vector!

Chris
thx.. i haven't think of that...
read,,clear then rewrite...

hmm,,
i'll try that one..

any other ideas will still help,,
i'll try to post my codes later...
thX!!
I am living in a mere program...
Reply With Quote Quick reply to this message  
Join Date: Aug 2005
Posts: 15,170
Reputation: Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute Ancient Dragon has a reputation beyond repute 
Solved Threads: 1439
Team Colleague
Featured Poster
Ancient Dragon's Avatar
Ancient Dragon Ancient Dragon is offline Offline
Most Valuable Poster

Re: help with files

 
0
  #4
Jan 7th, 2009
>>any other ideas will still help
Freaky's solution looks like a sure winner to me The only problem I see is if you unplug your computer before properly shutting down the program so the data can be saved.
Last edited by Ancient Dragon; Jan 7th, 2009 at 10:23 am.
Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.
Reply With Quote Quick reply to this message  
Join Date: Apr 2008
Posts: 670
Reputation: Freaky_Chris is a jewel in the rough Freaky_Chris is a jewel in the rough Freaky_Chris is a jewel in the rough 
Solved Threads: 113
Freaky_Chris's Avatar
Freaky_Chris Freaky_Chris is offline Offline
Practically a Master Poster

Re: help with files

 
0
  #5
Jan 7th, 2009
Write it to a new file. then delete original when completed and rename new file
Knowledge is power -- But experience is everything
Reply With Quote Quick reply to this message  
Join Date: Jul 2008
Posts: 21
Reputation: azwraith69 is an unknown quantity at this point 
Solved Threads: 0
azwraith69's Avatar
azwraith69 azwraith69 is offline Offline
Newbie Poster

Re: help with files

 
0
  #6
Jan 8th, 2009
haha.. thx again

but my problem now is the storing of individual questions to each element of vectors..

because most questions have '\n' inside them,,an example is a multiple choice-type question,, which make using delimiters quite hard..

my attempt would be to put a character (that i won't use in the question bank) at the start/end of every question to serve as a delimiter.. but is there any easier way? what specific functions can i use to read those questions and put into vectors easily?

thx..
I am living in a mere program...
Reply With Quote Quick reply to this message  
Reply

This thread is more than three months old.
Perhaps start a new thread instead?
Message:



Similar Threads
Other Threads in the C++ Forum
Thread Tools Search this Thread



About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC