Program For Prime Numbers Stumped?
Feb 25, 2010Simple Program for Prime numbers stumped?
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Basic Prime Numbers Array Program?
Apr 20, 2011First 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:
[Code]...
Create A Program That Finds Prime Numbers?
Oct 7, 2010So I have been assigned to create a program that finds prime numbers. And then for the final part of the program I need to have the computer find the millionth prime.
View 3 RepliesMake A Program For Finding Prime Numbers?
Dec 21, 2011I needed to make a program for finding prime numbers. The logic is that you have to put limits n & m and then LOOP and odd-integer P between n & m inclusive. I have a button to click on my form that displays 2 message boxes, one saying " enter upper limit" and the other say "enter lower limit". I need now to get the results of the odd prime numbers between the limits into a list box!
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
Made A Program For Generating Prime Numbers In A List Box?
Dec 24, 2011So I made a program for generating prime numbers in a list box. My initial code had them listed like this:
2
3
5
7
..ect
Now I have them listed in pairs like this :
[Code]...
Simple Program To Show Random Prime Numbers
Feb 25, 2010Basically what I am making is a form with just one button and 2 text boxes. The purpose of it is that when I click the button 2 random PRIME numbers between 100-999 will show up in the boxes. With my code I have now, the numbers that show up in the boxes aren't always Prime.
My current Code is.......
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Randomize()
Dim p, q, i, j As Integer
[Code] .....
VS 2010 Basic Prime Numbers Array Program?
Apr 20, 2011First 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:Dim flag As Integer Dim ar(101) As Integer
[Code]...
VB - Relatively Prime Numbers ?
Mar 1, 2012I have this number x and i wanted to find all numbers which are relatively prime to it.
My code so far:
For i = 1 To x-1
if [number n is relatively prime to x] Then
ListBox1.Items.Add(x)
End If
Next
How To Generate Prime Numbers
Oct 11, 2009I want to rite an application that will print first n prime numbers. For example if user enters 7 you should display: 2 3 5 7 11 13 17 Assume that the user will enter only integer values from 1 to 100.
this is what I have so far
Dim intNum As Integer
Dim intX As Integer
Dim strOut As String
[Code]....
.NET Class Program Harvey Industries Stumped On Code?
Nov 28, 2011I have to submit this assignment that I have mostly done. But the problem is that the program calculates the pay roll even if you dont select a martial status radio button. I need to make one of the radio buttons default upon the program being opening opened. Also Im getting a negative number for the fwt label result after calculating. Why could that be? Here is my code:
' Project name: Harvey Industries Project
' Project purpose:
' Created/revised by:
Option Explicit On
[code].....
398 Million Prime Numbers And Growing?
Aug 17, 2011[URL]
Each set of ( 1 million ) prime numbers is in a ZIP file just click on say 1st Million
on the left to download a list as a ZIP file.
Here is a similar page which is a lot easier on the eyes:>>
[URL]
These are of course great to use in any security application or as part of any password.
However with the list so readily available on the internet is it such a good idea to use a prime number as part of a password? Food for thought perhaps? ....
I guess it depends on how long it is too. :-)
You could try to remember one that is close to an important date or other number that you know maybe?
If you are more paranoid use more than one prime number in a password with other characters ( UPPER and lower case letters etc ).
[URL]
Displaying All Prime Numbers In ListBox
Mar 13, 2010I am suppose to write a program using if statements and loops: Create an application that reads an integer number from the user and then displays in the List Box all prime numbers (for this project we are going to violate "positive" rule and make our prime numbers be negative as well) between user's number and zero 5 numbers in one row. The application also displays how many prime numbers there are between user's number and zero, and the total sum of all these prime numbers.
View 1 RepliesLoop Displaying Prime Numbers?
Jun 20, 2012I'm having a serious brain fart over this but I need a looping statement that will display all prime number from 6 to 10000.
View 3 RepliesPrime Numbers In Console Application?
Mar 4, 2010i need a prime numbers in console application in vb.net
View 1 RepliesPrime Numbers With Inline Functions?
Jul 9, 2009Just out of curosity, what's wrong with the following line. I'm trying to create a range of integers (3,4,5...,50) and then filtering out only those numbers which are not divisible by any integer less than themselves (bruteforce way of finding primes).
Enumerable.Range(3, 50).Where(Function(x) Not Enumerable.Range(2, x - 1).Any(Function(y) x Mod y = 0))
Vb Function For Making Prime Numbers?
Nov 21, 2010I made a form with a two text boxes for user input.A (lower bound) and an (upper bound), and then a text box to display all prime numbers in that range.I can't figure out what I am doing wrong, my error checking works properly but my math onlyreturns a true or false.
Function
Prime(ByVal findPrime
As Int32)
[code].....
Determine Prime Numbers - Calculate Button?
Mar 17, 2011I am creating an application that takes two numbers (lower and upper) and determines the prime numbers
Public Class primeNumber
Private Sub calculatePrimesButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles calculatePrimesButton.Click
'declare variables
Dim number As Long
[Code] .....
Once I hit the calculate button nothing comes up. I've tried adding the first code inside the function with the remaining code but no result. Now I'm putting the first code in with the calculate prime button. I am guessing there's a sqrt method that needs to be applied but I am not sure if it should be part of the function or the main?
Function To Check For Prime Numbers Within A Range?
Dec 4, 2010I have two user inputs (as textboxes) for two numbers I'm looking to check for all the prime numbers with the range of those two numbers and display them within a multiline textbox, however my code returns nothing but zeros, and I have seen easier ways to do it without functions but I am curious as to how to go about calculating primes within the function.[code]...
View 7 RepliesCalling A Function To Display A Range Of Prime Numbers
Dec 5, 2010I am trying to create a form that allows users to input two numbers a high bound and a low bound then when you click the calculate button it determines all the primes within the range and displays those numbers within a multi-line text box. It seems I have everything working except how to display the prime numbers, the result from the following code displays nothing but zeros so I suspect that the range is not being saved somehow? I have asked this on other sites and people just give me completely different code or their own, can anyone help me with this specific code without changing the underlying code, I have a feeling I might be missing a variable or I am calling the function incorrectly.[code]
View 2 RepliesDetermining Prime Number In A Program?
Mar 14, 2012I just started to use visual basic last month and I only know the basic codes. No matter how hard I try to understand the codes given by the other member, I can't understand it.So the program I'm making is to show all the inputted values and determine the even numbers, the odd numbers and the prime numbers.I don't know how to get the prime numbers.
Private Sub op1_Click()
a = InputBox("Input Endpoint: ")
For x = 1 To a
[code]....
Resolved Stumped Regex Works In C# But Not VB?
Jan 12, 2010I'm working through the Pro ASP.NET MVC Framework book by Apress (which is great, btw) and it's in C# although we mostly work in VB so I'm "translating" the examples along the way. So far so good but I ran into something that has thrown me.Long story short we need to validate that the string the user gave us as an email address. This returns true in C#:
Console.WriteLine(System.Text.RegularExpressions.R egex.IsMatch("Me@me.com", ".+\@.+\..+"));
But this returns false in VB:Console.WriteLine(System.Text.RegularExpressions.R egex.IsMatch("Me@me.com", ".+\@.+\..+"))
Program To Randomly Select Numbers For A Bingo Caller - Prevent Reversed Numbers Being Selected
Mar 6, 2011I have just about completed a .NET project to write a program to randomly select numbers for a Bingo caller. Over the last month or so Ive learned a lot about .NET but heres something that I consider to be odd and maybe one of you guys can offer an opinion.
One of the features of calling Bingo in a small local club is that callers often use little sayings to accompany certain numbers, I expect youve all heard of (say) All the sixes, clickety click for 66 or 5 and 9 the Brighton line for 59 etc. My little program gives an option to incorporate these with a prompt for the caller that can be edited outside of the program. One of these conventional sayings is used when a number is reversed 12 followed by 21 or 45 followed by 54 for example, when the caller might call (say) 1 and 2, one dozen, number 12 And the other way round 2 and 1, twenty one.
So, I programmed in a bit of code to detect this and to over-ride whatever might otherwise have been the quote with And the other way round and set about testing it. Ive been through literally dozens of full 90 calls watching for the occurrence of a reversed number, spent a few hours doing it, and not once has it occurred which is to say the least, unusual.
So, Im wondering about the Rand Function, could it be that it isnt possible for a reversed number to be selected? Just so you know, I randomly pre-select the order of all 90 numbers, I fill each of the 90 elements of an array with a random number first checking that the number selected hasnt already been stored, if it has, I just get the next random number (and check that too of course), but I cant see how that could prevent reversed numbers being selected, especially in light of the fact that frequently it's not the 'next' number that's used.
Project And Am Getting Stumped On The Error In Visual Studio?
Nov 21, 2009I am writing a project and am getting stumped on the following error in Visual Studio. It reads "Warning 1 Unused local variable" and "Warning 2 Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated"Here is snap of my code and the problem is highlighted. Any thoughts?Private Sub xmlImport(ByVal source As Object, ByVal e As FileSystemEventArgs)Dim eConnect As New eConnectMethods
[Code]....
Make A Program That Will Calculate Sum Of Consecutive Numbers Between Two Given Numbers
Jun 4, 2012I'm trying to make a program that will calculate the sum of consecutive numbers between two given numbers. [code]
View 13 RepliesVB Prime Number Looping
Jan 18, 2010I've been running through the online "Code Rules" tasks to work through Visual Basic. However I seem to be having a problem with one. The objective is to set a Button Click method to check if any number between 2-5000 is prime or not and to display it in the TextBox if it is prime. Here is what I have so far but it doesn't seem to work.[code...]
View 11 RepliesVB Prime Number Looping?
Mar 2, 2010I've been running through the online "Code Rules" tasks to work through Visual Basic. However I seem to be having a problem with one. The objective is to set a Button Click method to check if any number between 2-5000 is prime or not and to display it in the TextBox if it is prime. Here is what I have so far but it doesn't seem to work
View 3 RepliesCompare Numbers In Program?
Mar 26, 2012Again i am stucked on this: i have googled it but[code]...
View 12 RepliesPerfect Numbers Program?
Nov 6, 2010So I am trying to solve this program using the algorithm given, and I get no error messages but everytime I execute the program it just crashes. Any idea what I am doing wrong?\The user wants a program that will return a set of perfect numbers based on the value that is given. If the user types in 3, the program will return 3 perfect numbers
So this is the code I have so far...
dim perfectnumber as integer = 2
dim divisorRunningSum As Integer = 2
[code].....
Check Whether An Inputted Number Is Prime?
Sep 9, 2009I'm working on a console application in VB .net that checks a number that the user has inputted, and tells you whether the number is prime.
The number that has to be inputted has to be between 1 and 100. I have all the code so far and at the moment it can check whether the number is or isn't within the boundries.
Compute Whether An Integer Number Is Prime Or Not ?
Feb 28, 2008What i'm trying to do is compute whether an integer number is prime or not. The program performs this analysis for all odd numbers from 3 up to an input integer limit, for example 100. If the integer in the range 3 to limit is prime, a message stating so is printed. Otherwise, a message is printed that lists at least one other integer divisor. The output for each analyzed number consumes one line of text.
A sample output is shown below:
Limit is 100:
Number 3: is prime
Number 5: is prime
Number 7: is prime
[CODE]...
I understand I need to use loops, boolean functions, vbmath(), strings and multi-line out via concatenation. So I can put this is words how I think it should be done but not so great putting the code together
Test all integers up to the SQRT of the number (100)
limit = math.sqrt(100) + 1
Followed by 1 For statement
For c = 0 to 100 step 2?
And an If statement
If ......
result = false