While split a textline with numbers (integers), i get an array with numbers as string.Is it possible to short them? Array.short does not work as it shorts according the first number of the integer
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I am making a program, where the user enters 6 numbers in 6 different text boxes, and it displays the larger of those 6 numbers. But I also want to make it where if the user enters a string value (like S for instance) in the text boxes, it gives an message and says "please enter the numbers again" and the user gets to enter the 6 numbers again. But when I do try to do that, it gives an error message saying conversion from "w/e the user entered" to Double is not valid. If the user just enters the numbers, it works fine. However, I am trying to make it if the user does enter non numeric value, it gives a message window and the user can reenter the numbers again.
Here is my code Example
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This is where I am trying to use IsNumeric to show a message if a user does not enter a string so the user can renter the numbers again, but when the user does enter a string value (say in textbox 1) it gives me an error message saying conversion from "S" to 'double' is not valid.
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Then right here this is where I have my series of ifs statements, this part works fine, it displays the largest numbers of the 6 textboxes every time. Error free.
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And do this with variable number 2, 3, 4, 5.
I know there are easier ways to do these with arrays and stuff. But I am not there yet. I am still learning about ifs and stuff.
I have a question about working with arrays
I don't have any code written out I just want to know the best way to do this sort of senario to put into a flowchart, the program i'm working on isn't homework, its just practice and the book I have is less than helpful with what i'm working on.
I want to check to see if at least 3 numbers in the array are the same but no less so that it meets a certain requirement how would I check this?
I am working on an application that llops through a dataset. Within each loop, I need to test to see if the datarow number is contained within an array. For example:For Each Page in Pages Test to see if page number is found in array (i.e. page number = 3, array = 1, 3, 4, 7, 8)Next Page The test would match on record numbers 1, 3, 4, 7, 8.
View 2 RepliesI have a datagrid in my form and numbers are input it. I then loaded one of the columns into an array. This is the piece of my code that loads the array:
Me.dgv.CurrentCell = dgv(1, 0)
For i = 0 To (Me.dgv.RowCount - 1)
Receipts(i) = Convert.ToSingle(dgv(1, i).Value)
Next i
The first value is -2912895.29. I put the program in break-mode and it keeps loading the first value as -2912895.25. I checked and it loads all of the values a few cents off.
How 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?
I am trying to shuffle an array of numbers it is randomizing but the numbers are been repeated is not what I need., I need the array to be shuffled but keeping the same numbers.For example if I do a first shuffle numbers may look like this in random order
2,4,5,1,3
Next shuffle maybe
3,5,4,2,1 and so on
But my problem is it repeating e.g. like this.
0,3,3,4,5 or 4,5,5,3,3
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I am making an application that randomly generates numbers. I then have to find out if those numbers are even or odd. Then place them in the corresponding array ( EvenNumbers() or OddNumbers() ). Then display the random numbers array then the even and odd numbers array. I am up to the point where I have the generated numbers and can tell if they are even or odd, but can't get them into an array. I am trying to do it like this....
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i am trying to find out how it shuffles the number 1, 2, 3 and 4 without repeating the same number within the series. So far, I think that "i" begins as 1 and RN is a randomized number between 1 and 4. The do while loop checks if "i" is the same as RN and spits out the flag as true or false. Then "i" is increased 1 at a time and so does the number of elements in the array. I believe that the array a(4) and the for loop does something that "remembers" the same numerical value not to be repeated. I'm not sure exactly what the for loop does and how the flag make this thing work.
Lets say, a case where i=1 and the RN=3, the flag becomes false. Therefore, a(1)=3. Then, i increments by 1 and a(j) becomes a(2), which puts out the values 1 and 2. Since both numbers are flag=false, it increments again. Because a(i) = RN, a(2) becomes = 3. How can this be? It has a(1) equal to 3 and a(2) also equal to 3. Each array is supposed to have NON-OVERLAPPING numbers.
The result of doing shuffle() is a random set of numbers that don't overlap:
1234, 1243, 1342, 1324, 2341, 3412, 4321, 3214, and so on.
but never 1111, 1112, 3333 or 3242.
To find out how exactly it works, I tried to delete some lines, tweak the numbers. The result of that is either numbers change to repeats, all zeros or a logical error. The following is the code placed in the module and can be used for other forms and in this case it is used for the labels in form1 windows form:
Sub Shuffle()
Dim a(4), i, j, RN As Integer
Dim flag As Boolean
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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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I need to find consecutive numbers in an array and return a string which tells the range and numbers that don't form a range.I found some of the already asked questions but none of them is in VB.Net:Add to array consecutive numbersIf the array of numbers looks like {11,12,67,68,69,70,92,97} then returned string should be of the form 11,12, 67 through 70, 92 and 97.
View 1 RepliesI am having trouble in finding duplicate numbers in an array.the first one is to create an array with duplicates and then display the number that has been duplicated and how many times it has been duplicated.
Here is my uncompleted code:
Dim arry(4) As Double
arry(0) = 4
arry(1) = 44
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how do i find the Mode of an array of numbers.this is what i have so far, sacount1 is the max index
For j = 1 To SAcount1
If NFAI(j) = NFAI(j - 1) Then
x1 = x1 + 1[code].....
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 have an array that hold 6 random number, then this numbers are sorted from smallest to highest. My question is: How would I go about replacing any repeating numbers with a different random number. I.e. 1 3 7 2 2 9 is sorted into 1 2 2 3 7 9, but I would like to see one of the 2's replaces with a different number (that it is not currently in the array).
I have no code for this part - but the code for making the random number, storing them and sorting them works fine.
What I'm trying to do is: Set numbers (0-51, a deck of cards) in an array like card(0) = 23 (Which would represent, say, the Jack of Clubs). Then card(1) = 35. Now I have two arrays.
The first array is what I have mentioned above.
The second array is holding a Boolean value. So what I do is make a loop going through the card() array from 0-51. In this loop it generates a random number between 0 and 51. Then I check the second array (iCardUsed()) to see if it holds the random number.
So iRndNum = 13 (Say 13 was the random number)
loops through the second array checking if the there is a value of 13. If there isn't then I want it to set card(whatever it was on, say 12) = 13. then make iCardUsed(13) = true saying card 13 was true. I'm not too sure what to do if it was true, not false.
Alright, now that I explained what I was trying to accomplish, I'll post some code and the project.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim iCard(0 To 51) As Integer
Dim iCardUsed(0 To 51) As Boolean
Dim iValue As Integer
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Now, this works, but there are some duplicates in the array. I'm not sure why there would be duplicates. It worked fine when I manually entered data so the logic of it is right. [URL].
Lets say I have the following String Array:
Code:
dim strArr(3) as String
strArr(0) = "15 Joseph"
strArr(1) = "24 Nick"
strArr(2) = "3 Mike"
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So 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've been assigned a homework assignment where I need to use LINQ to find certain numbers within an array. I've read through the book and some online tutorials, for some reason I just can't seem to understand it. I'm not asking anybody to do my homework for me... Just asking if anybody could explain it better, maybe in more detail?
View 2 RepliesFirst off, I'm not sure if this is the right forum, please move it if it isn't. I am only just beginning with visual basic and I am trying to write a basic program to calculate the prime numbers from 1 to 100. This is what I have so far:
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OK, so I've been given an assignment due for Monday, which was to create a console program which allows the user to enter an unknown quantity of numbers, then have the Mean, Median and Mode averages displayed of said group of numbers.
So far I've managed to get the Mean and Median to work, for both odd and even quantities of variables. I am however stuck on getting it to calculate the modal average! I don't really know how to approach this, would a structure with two fields, variable and quantity of variable, work?
Below is the code, I haven't made it display discrete of continuous data yet, I'm leaving that for the end.
Module Module1
Sub Main()
Start:
'Declare Variables
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I imagine this is quite elementary for most of you, I unfortunately received no replies what-so-ever to my last thread...
PS: Why isn't there an option for UK in the two letter country codes?
I 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 have stores some numbers as strings and also some non-numbers as strings in an array. How do I find and store the numbers in one array and non numbers in another array?
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I have tried a million times to gt this funtion working and i cant.
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 have code that increments an array of numbers. However, due to performance issues, I need to optimize it.
Here is the code:
Public Sub increment(ByRef Index() As UInt16)
Dim N As Integer = Index.Length - 1
If (Index(0) = 65535) Then
Index(0) = 0
[Code] .....
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 am trying to learn about arrays and the for next..loop. This is a noob question but I cant seem to get it to work. I am trying to load an array with 30 numbers that print to a list box.
Dim a(29) As Integer
Dim strVar As String = "{0,-5}{1,5}{2,5){3,5}{4,5}"
Dim x As Integer
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For some reason I keep getting errors in the output statement that says "Input string was not in a correct format."
The output should list 1 to 30 in the list box
I 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 Replies