Random Number Generator Generates Same Numbers 19 Times Out Of 20 ?
Apr 1, 2010
I am trying to write a random number function that can just be called from my main module to generate different random numbers. I have tried this several different ways and I am having odd results. Approximately 19 times out of 20 the numbers come back exactly the same, but approximately 1 in 20 they come back as two different numbers. Im using Visual Basic Studio 2008. Here is the code I have so far, or rather, the current version of my many tests I have been running to try and figure it out. Sometimes it takes many runs of the program before the two seperate numbers apear.I've been researching it and have come up with nothing so far.I know I could put them in the module section as two different randoms and it works, but I get extra points if i use a couple classes in my program.This is the main module.
Module Module1
Sub Main()
Dim randomNumOne As New RandNum[code]...........
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Sep 17, 2011
I have this program generating a firstname and lastname from a file. When I run this program I enter information in three textboxes. The first two are the salary low and high(salary1.text, salary2.text) and the last one is the number of "copies"(copies.text) that I want.. When I put a number such as 10 in the text box it outputs some of the same names. The firstname file has around 100 records and the lastname file has about 1000 records Why is it generating the same name The problem is even worse if I do something like 1000 copies.. it outputs the same thing 8 times and then does something different another 8 times
Public Class Form1
Dim sex As String
Function randomfirstname()
Dim infile As IO.StreamReader
[code]....
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Nov 23, 2010
Right so my generator is working, but I now want to take the numbers that it generates and add them to a list of generated numbers. So you can monitor what numbers have been generated. then ideally a way to exclude these numbers from being generated again.
[Code]...
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May 26, 2011
I've read numerous posts and threads about random number generation, but I havent' run across this.If I generate a bunch of random numbers, the results are radically different if I create a new Random generator for each number than if I use on Random generator for all the numbers. The results are much more consistent and evenly distributed if I use the same Random generator.I would have thought the opposite,because creating a new Random generator each time should reduce the number of random repetitions, if a different time slice is used to create the random number.[code]......
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Jul 28, 2009
How can I make a command button, When clicked, Generate 4 random digit numbers? such as 5545 or 7492, Any random 4 digits.
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Jun 24, 2010
i wanted to create a random number generator that iterates through a series of number between an upper and lower bound. say between 1 and 100. Basically I want the number generator to pick the numbers randomly and then display them until all 100 numbers are picked without any duplicates. so thats easy I can code that. But what I don't know is how to show those numbers in the order they are generated on a windows form. So i have basically a variable that I will let be changed 100 times (or however many times I want, I don't want their to be a size constraint just using 100 as an example) and each time the number is generated I want it displayed on screen (in a list or something not sure what. Hopefully some type of scrollable list) and each successive number also to be displayed in same format beneath it so that I can see the list in its entirety. What type of form control do i use for that? I could do messagebox.show for each iteration but then user is required to hit ok after each iteration and that would obviously be a bad idea if user selected a large number to work through. Anyways, code isn't exactly necessary just point me in the right direction, i.e.what control (if any) to use.how to format the change in data?
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Feb 15, 2011
I'm Trying to make a piece of software where You enter a number and the computer measures the length of the number, and then generates random numbers to match the human number. It will then count the number of guesses and the time taken. However it always comes up that there was a infinite loop "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll". I have searched up how to do this and I can't seem to find out how. I think I just put my wording wrong when looking it up. My Software Has Has 2 TextBox, 2 Buttons, 6 labels (4 just to make it user friendly) and a timer.
Here is the Code:
Public Class Form1
Dim TimeTaken As Integer
Dim GuessesTaken As Integer
[Code].....
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Nov 25, 2010
I'm supposed to make an app where computer generates a random number using a function and then the user has to guess the number. If they get it right, they see a picture.... If they get it wrong the loop keeps going until ten guesses are up.. I'm running into quite a few problems...
1. I don't know how to tell if the photo will show up if the number is right because right now I have it set to false in the form, so it dosen't show up but in my loop I included the code that SHOULD allow it to show up if both numbers are the same.... Not sure if this is correct...
2. I have a textbox that is supposed to keep track of the number of guesses but the message automatically becomes Game Over and the guesses go up to 11 as soon as I click the Are You Right Button?
3. When I try to debug, my app freezes and I don't know why...
[Code]...
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Mar 15, 2011
I'm trying to make an application where when the user clicks a button, it generates a series of 100 random numbers between 1 and 1000, and then saves those numbers in a text file. All I could come up with is generating ONE random number, but I can't figure out how to make it 100. Here is what I have:
[Code]...
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Oct 9, 2009
I want to repeat a random number sequence generated by a legacy software using the VBMath.Rnd and VBMath.Randomize functions in VB .NET Reading on the documentation for those functions on MSDN i found that you are supposed to "reset" the generator calling Rnd with a negative value if you want the same seed to give you the same result sequence each time. But doing some tests... things didn't work as expected.
[Code]...
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Jan 14, 2010
c# - Obscure VBMath random numbers generator behavior
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Jul 31, 2010
I've created code that generates a random number and validates the users guess to see if its correct. I think the code is good but i'm not 100% sure. I need to add additional pieces to the code and i'm not sure where or how to do it. allow the user 10 guesses. after 10 guesses disable the ability to make more guesses if the 10th guess is wrong count each guess entered & display the count as it increments display each guess along with its returned messaeg into a list box. when the user gets correct answer provide a box to allow them to play again. Re-initialize variables back to their starting status.
a. If the user correctly guesses the number in less than 5 guesses display "Either you know the secret or you got lucky!" in a message box. b. If the user correctly guesses the number in 5, 6, or 7 guesses, display "Ah Ha! Do you know the secret?" in a message box. c. If the number of guesses is 8 to 10, then display "Try to do better next time." d. If the number of guesses exceeds 10, then display "You have taken too many guesses."
[Code]...
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Jul 13, 2009
I was wanting to add a random number generator to an app of mine and I have the code that creates it:
Private Function RandomNumber(ByVal min As Integer, ByVal max As Integer) As Integer
Dim random As New Random()
Return random.Next(min, max)
End Function 'RandomNumber
What I can't get to work correctly is the following. I have a textbox for the min and max. The way I have it setup is when it generates it I have a MessageBox show it but it pulls the same number a few times in a row. How do I make it pull a different number each time until all numbers a pulled. I then want to add them to a listbox as each one is generated.
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Nov 21, 2010
I need to create a multi dimensional array comprised of random numbers between 1 and 4. The reason why I need a mutidimensional array is because each number needs to be associated with a random letter of F or N. [ F or N are really Indicators or whether I should show the user Feedback on their results in the case of F. Or not show them Feedback in the case of N.] So within this array 2 random numbers will be associated with random F's. And 2 will be associated with random N's. For example the array should look like (1,F 2,F 3,N 4,N) or (3,N 2,F 1,N 4,F). The reason why I need this random array is because during the course of my application being ran 4 times (which represents the numbers) I want to insure that every time N is done 2 times and F is done 2 times. This is all to make sure that each Number 1-4 after 100 times the application is ran has the same amount of F's and N's. I was also wondering if someone knows a way to store how many times the application has been ran in asp.net so that I can recreate another random string after 4 application runs.
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Feb 28, 2010
i already ahve a random number generator. the question is this, how do i go to the next number in the sequence when the random number generator is run.
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Jul 28, 2009
I need to create a random number genrator to generate a membership number when i open my sign up form. i need it to be shown in a text box.
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Mar 21, 2009
Im trying to make a random number generator just for fun this is what I have so far
[Code]....
It seams right to me but in the line Dim rand as new Random the word random is underlined and it says type expected
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Jan 16, 2010
How to make a random number generator, and I need one for what I am making. I need something that basically says, "make random number between 1 and 4."
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Feb 25, 2012
I would like to know if what I have here is correct? could it be done better? is there something I could add or take away? or is it finished and does what it does? I'm also posting it so that other beginners can maybe look at it and learn from it, just copy and paste the code in to a new Windows Forms Application, hit F5 and then Space bar.[code]
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Oct 3, 2009
I am doing a Coin Toss program for school and I'm getting my butt kicked by this thing. The following are the instructions exactly as my instructor gave them:Use the random number generator (see the code below) to simulate a coin toss. First ask the user for the number of repetitions. Next, set up a For loop to execute that many times. Each time you enter the loop, call the random number next method. Assume that a random value <= 5 is considered a "Heads"; a value >5 is a "Tails". That is, if the random value is <= 5, add one to an accumulator named intNumHeads. If the random value is >5 add one to an accumulator named intNumTails. When the loop finished, output the number of heads and the number of tails in a text field with appropriate labels.Dim intRandom As New Random()Dim intNumber As IntegerintNumber = intRandom.Next(0, 9) In my application I have the click event of the "Flip Coin" button coded as follows:
Public
Class frmToss
Private Sub btnFlip_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
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May 29, 2012
I have 3 label and 1 button and need to create random number in each label after the button is pressed, the numbers don't need to be unique but cant have all 3 labels with the same number, I have looked around the web but can't find the code I am looking for.
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Mar 15, 2009
Stuck programming a random number generator game. one is to guess what the random number. I have coded most of it and am pleased, but there are some hitches. a) When running the program if you guess 10 it says," Guess Higher" which is impossible as the num gen stops at 10 (if you guess 9 and the number is lower than 9 it says guess lower . . . which it is supposed to do)
b) When asked to play again if one clicks no it calls you a loser and exits the problem is it does the same if you click yes. How can I get it to simply start over if yes is clicked
c) Does anyone know how to make an image move up or down based on the input? IE if guess needs to be higher the image moves higher? Lower and it moves lower?
[Code]...
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Apr 1, 2009
how to generate a list of numbers, from 1 to 10 in a random fashion but with no numbers repeating. For example, every time the code is run, it will return an array of numbers, each different, only using numbers from one to ten?
This may sound confusing, so i will try and explain what I am trying to do with it. I have a form that displays 10 questions and each time a user moves to a new question, i want to display a new picture. the pictures will be named "picture1" through "picture10". I want the order that the pictures are displayed to be different every time.
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Apr 22, 2010
I want t to equal a new random number everytime but it only gives a random number the first time and then uses that same number everytime.
Private Sub Form9_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
notreduced(Label17, Label14)
[code].....
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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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Feb 14, 2010
For part of my coursework I need to be able to enter some customer details into a form and then to press a button which give that customer a unique reference number.
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Nov 21, 2009
How can I make a random number generator in vb 2008? I just want a simple one that displays a random number in a label.
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Apr 7, 2011
I'm trying to teach myself how to create a Random Number Generator in Visual Basic 2008 using a menu system and I'm having difficulty with the following:If I type in a number above 100, I don't get a message appearing saying that the number that I typed is too high.I don't know what I need to code to start a new game.How do I get messages to show up when both pressing the "Check Me" button and using the "Give Me the Number" option to say whether the answer is correct or too high or too low.ful to hear them.
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Jan 18, 2009
I did a simple screen saver just using a random number generator for the x and y points of a picturebox and it's ok but I thought I may try to snazz things upwith the image floating on the screen?
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Sep 11, 2011
I have a certain problem with 2 number generators that I have. My problem is that I want them to act individually. To where they seperatly come up with a random number. Mine is from 1-6 for 2 random number to simulate the rolling of two 6 sided dice. The problem that I have is that when I run the program they always generate the same number no matter what that number is. When I step through it step by step while the program is running in the debug screen they come up with a different number. This is in visual basic 2010 express edition.
Private
Sub
Button1_Click(ByVal
sender As
System.Object,
[Code] .....
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