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

please help me in this update statment
hi every one

if I have table and this data in it

id name
10

form variables from database help.
Hi all,

I would like to have a form that gives you options based on the results of an mysql q

firefox wouldnt stream mp3 files completely from my php page
hi everyone,
I have a php file trying to read and stream mp3 files. It works fine in IE but my pr

Login page problems
I developed a website a few months ago and I am now having an issue with logging into it. The place

php is not recognized as an internal or external command
Hello,

I am trying to bake the code in CakePHP through my console.
I have changed my Path

Calander layout
Hi i know this sounds like a simple question but i cant find the answer to it anywhere i have added

sendmail code suddenly not working
Hi Guys, I maintain 3 sites (including my own) I use the following code from a french webmaster that

Inserting into MySQL Newbie
Hi ive got a slight problem where ive made a simple web form where the customer inserts the ammount

small inaccuracies
I have this code to convert fractional base 10 into base 2:

while($num > 0)

Empty text file when there is over XXXX lines of text.

define("RANDOM_FILE","/public_html/random.txt");
$randomEntry = "