Stop Duplication In Random Numbers?
Jan 29, 2009
I'm trying to create a 'lottery machine', I've included the code i've been using below. I've got 7text boxes, ad numbers are between 1-49. I need to stop the duplication and to sort them in ascending order (1-49), i've tired a bubble sort but that hasn't worked, and a 'if, while' process, but i think it might be wrong! I know its a little pushy but i could do with this being sorted before 3pm friday 29 january 2009! I would be so greatful if anyone can even point me in the right direction as i am new to visual basic.
pixie_208
My code:
Public Class Form1
'version 27/01/2009
Dim Timer2Count As Integer
[code]....
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Feb 6, 2011
I am working on an application, where I have already normalized the databases. Now I am creating an application in asp.net with vb.net as my code behind fine. These random numbers would be stored in the Id column. So, no way there would be repeating the keys. But my application could generate the key, which would probably get repeated. How would I check the database for, so that random numbers wont get repeated? is there any function? Could you give me the code for the same.
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Sep 11, 2009
I am new to Visual studio 2008 using the express version. I wish to generate up to 10 000 random numbers without duplicates. Any appropriate container to store and print these numbers.
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Apr 4, 2010
The class Random is out right defective. It always produces the same random numbers in the same sequence. Things I have tried so far is every kind of seed you can think of as well as Randomize. The result is that I always get the same random numbers in exactly the same sequence.
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Aug 16, 2009
So how would I use .next (random numbers) to randomly select something from a list of numbers but it can't repeat the number?I could do:
dim num as integer
dim r as new random
num = r.next(1,5)
if num = 1 then
elseif num = 2 then
etc.
That wouldn't work because it would repeat.If I donwload someone's game can I disect it in VS? :0 I tried going to open project, then I went to the folder and clicked open. It brought me inside of the folder so I tried to open the game but there is no form1 there. It says the games name then .exe in the explorer-like thing in the top right?Also, how would I have a value or something in a label and access it from a button.
Example:This is in a label.
Dim number as Integer
number = 0
Then in the button do
Label.number = 0
How would I do something like that? I want to use that a lot as I did in a different language.
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Oct 6, 2011
The program must generate 6 unique random numbers but when I click display numbers sometimes it gives me 6 unique numbers and sometimes I get duplicate numbers. I will add the code I have so far.
Public Class frmMain
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
[CODE]...
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Nov 24, 2009
I don't take programming lessons at school or anything, and I'm starting to (try to) teach myself about random things.Currently I'm making an app that has 3 functions:
-Random Integer (1 to 100)
-Random Answer (Yes or No, similar to a coin flip)
-Random Dice Roll (1 to 6)
How would I go about doing this?At the moment all I know about random numbers etc. is that I will need to do something along the lines of Dim dice As New Random or something like that, but, like I mentioned, I have no idea.I am well aware of the DIC rules that you won't write the code for me/do my "homework(?)" for me, and that's not what I'm asking.
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Jan 10, 2010
Basically, I want to divide two numbers together and they should be 2 random numbers from 1-12 (I have done that part) but, the answer should be a whole number (i.e. Integer, so no decimal points etc) So, I did the following:
' Initialize the random-number generator.
Randomize()
' Generate random value between 1 and 12.
Dim value5 As Integer = CInt(Int((12 * Rnd()) + 1))
[code]....
but the problem here is that the program crashes after only a few clicks on the button. So I guess the question is: How can I make the program generate two numbers (from 1-12) that when divided become a whole number?(Is there any code that may tell the random generator that I want the numbers to be even?-so all even numbers from 1-12?)
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Dec 12, 2011
I'm working on a reaction time program where I'll be testing... well, reaction time of a user. For this program I'll need a timer to stop at a random time interval, say somewhere between 3 and 10 seconds. Anyone know of a technique to do this. I've done some research and it seems there are a bunch of different ways of generating a random number just not sure how to assign that number to a timer.
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Feb 13, 2010
im making a program that will generate a number ever 1000mil seconds and when it hits 0 its makes a new time and starts again
i have 1000mil seconds set on a timer and i have this code
If Labelcount.Text >= 0 Then
Labelcount.Text = Random.Next(1, waitTextBox.Text)
[code].....
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Jun 16, 2009
Private Sub calc2_Click()
Dim t As Long
Dim V As Long
Dim w As Long
[code]....
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Feb 17, 2011
Basically I have 7 labels on a form that I randomize into numbers between 0 and 49. However some of the numbers repeat, like this 1,4,8,14,14,50,12. [Code]
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Nov 28, 2009
I am generating an array of random numbers for for a class project (simple yahtzee game)I am comparing the output of the array and displaying a picture of each matching dice in a picture box.I would like to use check boxes to select a position of the array so it cannot be changed until the check boxes are clearedWhen the check box is checked, the value of the position in the array should not change.
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Jul 3, 2009
i want to know how to generate 7 "differents" random numbers.
I need to use a tab() with 7 entries and verify(with a loop?) if the generated number is or not present in the the table, if not then increment a counter by 1 and add the number in the table and increment the table position by 1 for the next randomized number.
Im not sure how to do the verification, so far all i have is a function i made for the random number between min and max:
Private Function randGen(ByVal min As Integer, ByVal max As Integer)
Dim random As New Random()
Dim i As Integer
[Code]....
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Jul 11, 2009
I want to get random numbers between 0 to 100..But i do not want the random number to be repeated.
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim objRand As New Random
objRand.Next(0, 100)
End Sub
Suppose first time random numb generated is 10..Next time if same random number is generated,den i want to get the other random number..I want to get all the numbers b/w 1 to 100..but only one time
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Jul 11, 2009
I want to get random numbers between 0 to 100..But i do not want the random number to be repeated.
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim objRand As New Random
objRand.Next(0, 100)
End Sub
Suppose first time random numb generated is 10..Next time if same random number is generated,den i want to get the other random number. I want to get all the numbers b/w 1 to 100..but only one time
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Jun 25, 2010
I want to random a numbers about 20 second. how to write the code
[Code]...
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Mar 20, 2010
i have been trying to have a textbox that the user can only enter letters? i can use: If IsNumeric(textbox1.Text) Then textbox1.Clear() for making it not numbers, but how can i stop symbols also? i am using vbexpress2010 and know how to use it and different types of code
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Jul 19, 2011
i need to add random numbers in list box like
0
2
1
3
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Jun 21, 2010
i am trying to create a messagebox which brings up four random percentages which add unto 100%, i can create the messagebox with[code]messagebox.show ("") {icode]
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Jul 14, 2011
I am writing an application that needs several random numbers. Each time I use the Rnd() function, do I need to precede it with the Randomize() initializer?Or can I just use Randomize() once at the beginning of the code?Examples: Do I need to do it this way?
[Code]...
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May 1, 2012
'm attempting a program and need to generate 10 random numbers between 1 and 52. However all the numbers must be different. I'm trying this in a For Loop. I'm not terribly amazing at this so all I have so far is:
Dim B, I, J, max, min, card() As Interger
max = 52
min = 1
Randomise()
[Code].....
What am I doing wrong and what is the ultimately simple solution I know the internet can provide for me?
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Jan 9, 2010
This code is in VB6.0I have 28 numbers in sequence (eg 1-28), they are randomly generated and displayed in a label. I dont want a duplicate number displayed in the label. Pls how do I do this. Below is how I generate numbers at random. Now I want to make sure there is no duplicate number displayed in the label.[code]
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Mar 14, 2012
i have a few questions about generating random numbers:1) is it possible for the programme to generate a random number that it has previously generated (i.e could it produce the same number more than once?)2) can you specify what numbers to generate? e.g only whole numbers up to 1000?
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Nov 9, 2009
I have a problem regarding the generation of random numbers in vb.net..I have code like this!!it generates the random number but both the numbers are same for my program the should not be same!![code]
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Aug 30, 2009
So if you have one button and one textbox; whats the code so when you press the button the textbox comes up with a random number?
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Oct 13, 2011
How can i do a random numbers?.i'm using 3 listbox when i click button generate the result will show into the 3 listbox??
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May 23, 2010
I'm working on a Bingo game that generates a random letter and number.
Dim RandN As New Random()
Dim randnumber = RandN.Next(1, 30)
Dim RandL As New Random()
Dim randletter = RandL.Next(1, 5)
All that works, but I'd like it not to repeat a combination. Any tips on how to do that?
Also the random numbers tend to be repetitive and the random letter is never 5. I think the random number has been 30 before but I can't be sure. Is there a way to fix that or just a better way to do the random numbers?
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Oct 8, 2009
Dim intNumber As Integer
Dim arrNumber(0 To 51) As Integer
Dim i, x, y As Integer
[code]....
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Feb 26, 2012
I have a random number generator, an upper bound and a lower bound. I need to use the random number generator to get that many numbers between the upper and lower and then calculate the perecentages of how many are odd, even, etc.
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