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).

Did you know?Explore Trending and Topic pages for more stories like this.
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 :(
No comments posted yet

Your Answer:

Login to answer
293 Like 27 Dislike
Previous forums Next forums
Other forums

Checking if field is empty AND using !is_numeric
Hi lads,

Need to be able to display an error message (using isset?) that says "Cant lea

filesize() returns 0
I have a socket program that runs in an infinite loop, listening for connections, in this socket I h

Why does this file not return file names that start with numbers?
This file returns a list of filenames to help populate a drop down in my form. For some reason it ig

ImageCreate()
When I create an image and add text to it I want my text to be replaced with a PNG image, because th

Passing JS to PHP
So I have the following
Code: <?php
getdetails(?><script type="text/

using a loop help
Hi guys , i need some help. I have this loop :
while ($row = mysql_fetch_assoc($Result)) { ?&

Line break?
Hi, I'm new to the forum and new to php. I'm not sure if I'm using the correct terminology so here i

newbie question about multiple queries
hi everyone,
I'm sorry to ask such a basic question, but I'm young and trying to learn php on my

remove a ; from emails in textarea
Code: <?php

session_start();

$database_host = "localhost&qu

PHP error on MySQL insert
I'm sure it's the simplest of issues, but I can't recall why this isn't working.

Code: [Selec

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash