Create An Array Of 5 Random Unique Numbers Between 1 And 30?
Aug 7, 2011I am trying to create an array of 5 random unique numbers between 1 and 30. I've been trying for a while and have had no luck.
View 9 RepliesI am trying to create an array of 5 random unique numbers between 1 and 30. I've been trying for a while and have had no luck.
View 9 RepliesSo I know how to an unique random number in a 1D array but In an 2D array looks so difficult or strange for me[code]...
Is their an other solution for an unique random number 2D array?
I have not messed with VB much and I have been trying to do something that has me stumped. I wanted to create an array of 10 random numbers. Each of these numbers then is printed onto a label. From here I have two more labels that show the highest and lowest value. I got the first part, 10 random numbers show up but then things get shaky. This is what I have thus far.
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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
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My project is basically a addition test for 5 to 9 year old children. On my form I have a button which when clicked, it inputs a number from 1 to 10,( which is chosen by the user via an combo box drop down), into ten text boxes. I have built and array and used a, for loop for this and it works fine. [code] My problem is I need to create another array connected to the same button to genarate 10 random numbers. Which will allow the user to add the two numbers together.My problem is that visual basic wont let me add a second array to the same button?
View 6 RepliesHow would I go about doing this, is there a for next loop involved and is there a way not using the for next loop ?
View 15 RepliesI want to generate random datasets with regex.
Therefore I have an expression like [a-z]{10}.I want to generate maybe 200.000 data - maybe more (it should be generic), every data should be unique.
How can i implement that?at the moment i have a algorithm, that generates a random string, then search in an array that stores the values, if the string is already in there it repeats that process. Otherwise it stores the string in the array.
For my database I need to create unique numbers and insert them in the column "ID". Can I add them via a SQL query? The numbers would simply be 0001 to whatever.I'm using the "Show Table Data" gui.
View 7 RepliesHow Can I random the numbers in my array but they will not repeat the array value. The array number starts from 11 to 14.
Or how can I random 4 buttons.text that uses array to call their text?
Generating random numbers in an array HELP
View 6 RepliesThe first problem I am having is that it populates every cell with the same random number. How do I get it to create a new random number? The second problem is that I need to make sure each entry in the array is unique.
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I'm trying to make a Bulls and Cows type game, I was able to do it fairly easily with javaScript, but VB is killing me. I can get the array 5 slots long with random numbers, unfortunately they're all repeats. when I try getting no repeats I run into infinite loops, exponentially increasing array lengths, and just plain old arrays with 5 numbers randomly generated, but with repeats.
I'm trying to do this with loops, in JS I did it using regular expressions
Here's an example of my code.
Public Class Form1
Dim intRand(0) As Integer
Dim RandomClass As New Random
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I am writing a program for a class on visual basic and i have a listbox that displays 15 random numbers using an array. Then there are 2 buttons(max and min) that when clicked displays the largest number in the list and the smallest. how do i get these buttons to do this?
View 6 RepliesI want to set an array upperbound limit to 50. I need a loop to create a random number and place it in the array until it reaches 50( I've set up the random generation part). My question is do I set the upperbound limit when I create the array and redim for each sample being added or set the limit somewhere else? I understand how to set up a basic array and how to redim arrays, but adding the loop to it is confusing me.[code]...
View 4 RepliesI'm new to the forums and VB programming in general, so I only have a very basic understanding of VB commands, but I still have a good grasp on logic and the like. I'm doing this for a school assignment, and I am in a bit of a pickle.I am trying to generate an array of 6 random numbers from 1 to 30, making sure there are no duplicates.I think I'm pretty close to cracking it, but it still doesn't work.Here's what I have at the moment:[code]......
View 2 RepliesHow can I check an array for duplicate random numbers and replace the duplicates with new random numbers?[code]...
View 7 RepliesI'm creating an application that creates a list of 20 ramdomly selected numbers within an array and displaying those numbers in a listbox. I then need to display the duplicate numbers in an adjacent listbox by clicking the find duplicates button. How would I be able to access those 20 numbers in order to find the duplicates?
View 2 Repliesi want to generate random numbers which will be put in an array and displated in a grid. the user has to provide a lower and upper bound. method overloading also has to be used in order to generate the numbers
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I am currently taking a introductory level class to vb.net. For the assignment it asks to create two functions. One function should create a random number within a given range. I have completed that part. What I am having trouble with is the second function. It wants the next function to use the previous function three times so that it displays 3 separate random numbers within a given range and display it in a D2 string format.
View 1 RepliesI am using VB .Net to access the eBay API and store all completed orders in a database. This database is then fed into a proprietary shipping system, which can not handle an order number larger than 20 characters. eBay returns an order number like so 230407279314-680141236013 which is too long. The order number is always 12 numbers a hyphen and 12 more numbers. What I need to do, is turn this (the result can be alpha numerical) into a shorter, unique order key to store in my database alongside the true orderId (so that this can be referenced by the shipping software instead of the actual order number). The reason for the 20 character limit is the barcode algorithm used. Is there any way to achieve this in VB .Net 2010? This number can be anything unique, so long as it does not exist already (even a good uniqueid function would work, but I would have to query the database to make sure it isn't taken)
View 2 Repliesi want creat a simple game. but how to create a random value to index in array
i.e index of aray [1,2,3,4,5,6,7,8] is generated randomly become [8,6,1,5,4,2,3]
then i use tha indext for a button text
"and anyone can make below code more simple"
Button1.Text = arr_tombol(1).ToString
Button2.Text = arr_tombol(2).ToString
Button3.Text = arr_tombol(3).ToString
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I want to create an array V0(9) using random number generation. For example I generated V0(9) = {1,2,3,4,5,6,7,8,9,1} I want to use 12345 + 67891. How can I separate to use two parts of the array.
My
Public Class Form1
Dim i As Integer
Dim V0(9) As Double
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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.
View 4 RepliesSo as the name states; I am a newer coder.
This is the code i have:
Public Sub RandomNumbers()
Dim s(4) As String
Dim RandomNumber As Byte
I don't know if you can tell what I am trying to do here, so I will try to explain. I what to create for random numbers and place them into for different text boxes. I also would like to do this with combo boxes and their selected indexes. So if the combo box has 10 items in it; the new selected index would be the random number generated above.
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.
Write a function that will take one integer input parameter, create a sequence of numbers stored in an array from 0 to that number, and the numbers are a summation. For example, given 7
View 17 RepliesI have an application that is made for a game that you have to draw cards for. So what I have done is created a random number generator that generates a random number and then using case statements that number is associated with a picture of the card, which is displayed in a picture box. This part works fine. Each time I draw a card it is not reshuffled so I need to store the random number generated and then if that number is generated again ignore it an generate a new number.
Now to complicate matters even further when a certain card is drawn the entire deck is reshuffled and everything starts over again. Here is what I tried... I tried using arrays to store the numbers but I cannot seem to get it to search the array for the number or store the number properly within the array. The array has to be dynamic since the game is expandable and I will be adding more cards to the game in the future.
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.
View 9 RepliesI am working on a Bingo game and I am stuck. I got the program to generate random number but they are not unique. I dont know how to fix this. I have researched online and nothing this is my last resource. I am using Visual Basics 2005 Express Edition. [code]
View 9 RepliesI am trying to generate Unique and prominently random colors in c# or vb.net. I am using below code now. But this code generating color almost same color, not big change.How can unique kind of colors?
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