Check Digits and extracting digits

Posted on 16th Feb 2014 07:03 pm by admin

I think I can figure out the code for this but I am having a very hard time getting past the first step. Any suggestions are greatly appreciated.

What I need to do is take a 9 digit account number (for an electrical bill) and 1) determine if it is a valid account using the check digit, and 2) determine the type of account it is (ie if the 2nd digit is a 4, its a residential account).

Suppose the account is 123456789 and I need to add the 3rd, 5th, 7th, and 9th digits, how to do I extact the digits so they can be worked with? All I can think of is to do something like this:

cout << "enter the third digit of your account"
cin >> digit3 >> endl;
cout << "enter the fifth digit..."
cin >> digit5 >> endl;

and so on...

total = digit3 + digit5 + digit7 + digit 9

Its obviously not practical to have the user enter their account number one digit per line as I am doing But how else do it make the account number into something I can manipulate?

I am a beginner. And not a very smart one, obviously :(

Your Answer:

Login to answer

Other forums

COOIS - Saving Object Overview WIP Status layouts
COOIS - Would like to be able to save the layout of an Object Overview - WIP Status report. There i

Fetching META TAGS through
Hello everybody
I want to fetch meta tags of a domain.
It will be done from following code of

Need Successful Return
Hello I am currently working a form here, and I have everything figured out except when I click the

PHP Programming error. Please help!
Hi there,

Am making a website for a friend and have encountered a problem that i need fixing

writing a screen scraper
Hello,

I'm writing a screen scraper application and want to be able to get absolute addresses

form problem
Hi all, I think this is going to be easy to resolve but for I have been looking at it to long and I

Protecting forms
Alright, I want to protect some forms of mine from SQL Injections, because I had someone earlier spa

problem in pagination when processing with selectbox form
Hi,

I have a search form, with select boxes, if am selecting the value from the form, it work

how to get values from $_Post with onchange="form.submit();"?
Hi, I have a form that submit to itself with a file upload field and two other hidden field values.<

dinamic "textboxes"?
Ey all, my first post here, i hope its not a hard one

I display mysql results in a table