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

Move array index to end
Hey guys,
Quick question:

I have an array that looks like this:
Code: [Select]$var =

Include ("Absolute Path") of a file?
I'm not sure what I'm doing wrong. I am writing my php code in the same directory of the file that

user validation always displaying invalid ? please help
Hello,

I have 2 accounts and there is a field in mysql called validated it can be either &quo

Check if another session of the page is running?
I want to keep people from opening multiple tabs, or sessions of my Facebook app. Is it possible to

Multiple includes losing variables
Hey all,

just starting out w php and ran into a problem pretty quickly. I'm
including seve

Got A Free Server :(
So I was given a free server

http://shopping.yahoo.com/p:Compaq%20ProLiant%201500%20Server:1

update sql when refresh - php
hi
I have made a table (attachement)

the users can update the sql database using + or x bu

Include a php
Hello,

I'm trying to include a function that shows the recent searches.
Example I have <

How to change Time Zone
HI
I want to change the time zone of the server to another country.How can do that?

Thanks

Pro-rata Billing in Periodic Billing for Rental
Hi guys,

We have a situation, where a rental contract starts at the mid of the month say