From: dblack@...
Date: 2005-12-08T06:33:14+09:00
Subject: Re: Newer to Ruby

Hi --

On Thu, 8 Dec 2005, Derek Chesterfield wrote:

> On 7 Dec 2005, at 8:47pm, Kwhamec Rojas wrote:
>
>> I need to be able to generate a random nine digit
>> number.  The first number cannot be 9,8 or 7.
>
>
> rand(700000000)

That won't always give you a nine-digit number (I'm assuming that
starting with one or more 0's doesn't count... though it's not 100%
clear).

Since the useful range is 100000000 to 699999999, you could do:
rand(599999999) + 100000000


David

-- 
David A. Black
dblack@wobblini.net

"Ruby for Rails", forthcoming from Manning Publications, April 2006!