dcsimg
Login | Register   
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: Visual Basic
Expertise: Beginner
Oct 1, 1996

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Using Rnd Function

Question:
Is there any way I can have a % chance in random events. (say you click on a button and you have a 30% chance of it doing one thing, a 20% chance of doing another, and a 50% chance of it doing another) I have no idea on how to use any of the random # generater commands.

Answer:
There are two commands/functions you need to use. The first is the Randomize statement... this initializes the random number generator. The second is the Rnd function, which will return a random number between 0 and 1, inclusive. Here's an example of how you might use it to do your 30/20/50 determination:

Sub GetRandomNumber()
   Dim tmp as Single
   Randomize        ' Initialize generator
   tmp = Rnd()
   if tmp >= 0 And tmp <= .3 then
      ' 30% Condition Code
   ElseIf tmp > .3 And tmp <= .5 then
      ' 20% Condition Code
   Else
      ' 50% Condition Code, since tmp can only be from .5 < tmp <= 1 at this
      ' point.
   End If
End Sub
DevX Pro
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
×
We have made updates to our Privacy Policy to reflect the implementation of the General Data Protection Regulation.
Thanks for your registration, follow us on our social networks to keep up-to-date