I'm having a hard time displaying the number of occurrences of the letters a,b,c,d,e I want to use IndexOf, but just don't understand how.
]Dim s2, s3 As String
Dim s1 As String
Dim a, b, c, d, e As Integer
Do While (s1 <> "finish")
[code]....
I am trying to create a program that would allow me to put a paragraph in a textbox, get each letter, and output the letter and number of occurrences of each letter in a listbox.
View 1 RepliesQuoteWrite a Visual Basic Console Application which executes a Do-While loop repetitively. Each time the Do-While loop executes input a String value, count and display the number of occurrences of the letters �a�, �b�, �c�, �d� and �e�. Use at least one Select Case statement inside your Do-While loop. For example, suppose during one execution of the Do-While loop you input the following String value: �My mother is a great lady!�. Your program should input this value into a String variable, compute the number of times each of the letters �a�, �b�, �c�, �d� and �e� occurs and output the results: a � 3, b � 0, c � 0, d � 1, and e � 2. Terminate your Do-While loop once a value of �All Done!� is entered for the String value.
Here is my code:
Dim s1 As String
Dim a, b, c, d, e, count As Integer
Do While (s1 <> "all done")
[Code].....
My problem is an error that states Variable 'count' hides a variable in an enclosing block. Here is my project and my code so far:
1. Write a Visual Basic Console Application which executes a Do-While loop repetitively. Each time the Do-While loop executes input a String value, count and display the number of occurrences of the letters �a�, �b�, �c�, �d� and �e�. Use at least one Select Case statement inside your Do-While loop. For example, suppose during one execution of the Do-While loop you input the following String value: �My mother is a great lady!�. Your program should input this value into a String variable, compute the number of times each of the letters �a�, �b�, �c�, �d� and �e� occurs and output the results: a � 3, b � 0, c � 0, d � 1, and e � 2. Terminate your Do-While loop once a value of �All Done!� is entered for the String value.
2. In the same Visual Basic Console Application, following the Do-While loop described in step 1. above, enter another String value and modify it by replacing all occurrences of the word �hi� with �hello�; all occurrences of the word �today� with the word �tomorrow�; all occurrences of �hate� with �love�. Output both the original String value and the modified String value.
This is my code:
Module Module1
Sub Main()
Dim s1 As String
Dim a As Integer = 0
Dim b As Integer = 0
[code].....
am working on a homework assignment and have got the vb running well. Except for one area where I am trying to determine the number of occurrences of a combination of letters "XY". All other instances of this works fine for individual letters.
For intIndex = 0 To intLength
strCurrent = strSearch.Substring(intIndex, 1)
If strCurrent = "th" Then
[Code]....
a program is supposed to display the number of times a number occurs in a larger number. For example, iff the user enter 356, its supposed to show the numbers 0 thru 9 and say how many times the number occurs in the program. I am pretty sure somethings wrong with the first For loop, but I am not sure why it doesnt work, all it prints out are zeros.
[code]...
I've googled for a while now, but I can't seem to find it.
I'm looking for a way to determine how many times a character occures within a string.
Let's say for example I want all comma's to be counted in the following string:
'122,333,222,11,44,55'
How can I retrieve the number of comma's? in example 5.
Count specific character occurances in string
I have a delimeter in string that i have to validate. How can I count occurrences of that char. For now i have a next function.
Private Shared Function CountChars(ByVal value As String) As Integer
Dim count = 0
For Each c As Char In value
[Code].....
I'm scanning through all characters in a textbox. Then the program counts how many of each character is in the textbox. Here's the code which adds all characters to a list:
For each c as char in TxtBox
list.add(c)
Next
Everything's working fine, except this will also add returns to the list, which I don't want. I thought I could write like this:
If c <> chr(10) Then
list.add(c)
End If
I'm using Streamwriter/Streamreader for the first time in this project and keep getting an "Argument out of Range Exception was unhandled" error.It says "length cannot be less than zero. Parameter name: length."This happens at "dblYearly Income." Also, how do I find out the number of occurrences of an item in an array? For instance, I have a Race combobox and need to find out how many occurrences there are for each race.Also, is there a way to count the number of occurrences of an array itself, I guess the upper index value? [code]
View 7 Repliesits like this if we think the original textfile like this [its meaning less] dim original as string = "myname is not thename wasthe notthe nameisnot nere!" i want to see what words are recurring, like name, the, was, not but i cant use split(), substring because they may even exist as combined words like thecat and i need to know the number of time it has recurred
View 1 Repliesthere are any nifty in-built .net methods that can essentially return either the number of occurrences of each element in an array, or simply return the modal value.
View 7 RepliesI have to search within an array and display the number of occurrences that a value within the array appears. I know that my code is incorrect but this is what I have so far. If anyone can point out what I am doing wrong that would be great.
Private Sub btnResult_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnResult.Click
Dim intSearchAmount As Integer
Dim intCounter As Integer
Dim intIndex As Integer
[code].....
I need to know how to use a function to do the following: Create an invoice number using the last two letters of the last name and the first four digits of the zip code.
Example:
Name: John Doe
Zip: 11111
Invoice number becomes DO1111
I'm attempting to learn VB in college. My first project is to create a program in Small Basic and then write it in Visual Basic. I'm looking for the equivalent of TextWindow.ReadNumber() from Small Basic in Visual Basic. I want to force the user to input a number not letters. I'm writing this program for the Console. Is this possible? During my testing I entered a word instead of numbers and the program crashed.
View 2 Replieshow can i make a textbox that just write number not letters
View 2 RepliesI would like to ask for some on how to create a random string with number and letters in 8 characters long in VB 2008
View 1 Repliesbasically just trying to use if statements for my code so people cannot enter the wrong information like letters into the account number box
If (txtAcountNumberInput.Text = "") Or (txtTelephoneNumberInput.Text = "") Or (ComboBoxPhonePlan.Text = "") Or (txtCallDuration.Text = "") Or (txtCallDate.Text = "") Or (ComboBoxCountryBeingCalled.Text = "") Or (txtTimeAsCustomer.Text = "") Or (ComboBoxEveningCall.Text = "") Then
[code]....
so you see up the top i have if all any fields ="" then error that's fine it's a problem i need to so if statements so "account number" and hone number" cant be letters etc and if they are a error box will come up how i have done it does do that but ti still continues down the code hence cashing when getting to declaring things how to fix this?
I have 1000 records in DatagridView. I want to Display only 500 records in datagridview. I will put a button and a TextBox, and Enter 500 in TextBox, It should show 500 Records. How to Do?
View 10 RepliesEach time my application opens, how can i display a random number in a textbox? and i can only be between 1-100?
View 7 RepliesI'm keeping track of some things that are numbered and others that are lettered; while NumericUpDown is perfect for selecting numbered things, I need an analogue for selecting lettered things. The obvious choice would be a listbox that just contains all the letters of the alphabet. But I need to show only the appropriate range of letters, so if I want to use a listbox, I need to write a function that populates the listbox with the first n letters of the alphabet; if n > 26, it should continue with aa, ab, and so on. How do I do this?
View 17 RepliesAm using VB 2005 and need to take an existing txt file which basically has 15 sets of data, each set containing a year (ie Year 1990) and a number below the year.When a user clicks the calculate button on a form, I need it to first list the average of all those numbers(not year) in the txt. And below that I need the largest number in the file to be displayed
View 4 RepliesI've added a button to my windows form and I want to have it where every time I click on that button it registers the click and displays the total number clicks in a textbox on the form.
View 2 RepliesI'm creating a number guessing game. [Code] Textbox1.text refers to the answer input by player. There are two labels for displaying the range of the answer within. Label1 and Label2 refer to the lower limit and higher limit respectively. If the input value is smaller than the answer, the label1 will show the number that input into texybox1. If the input value is larger than the answer, then vice-versa. However, the program doesn't work as my expectation. Once I input the answer, the MsgBox doesn't appear. When the input value is smaller than the answer, the label1 doesn't show the input value.
View 15 RepliesI am working on a program that will display the number of storms in a specified year. This program uses a text file with years 1990-2010 and the number of storms for each year.
txt file:
Year 2010
6
Year 2009
3
Year 2008
8
Year 2007
15
Year 2006
10 .....
A user selects a year from a ComboBox (cboYear) and the program displays the number of storms using a label object (lblNumberOfStroms) for that year. The user then can click a button (btnDisplayStatistics) and the program will display using a label object, the number of storms for that year. This seems like a simple application but I am having trouble grasping the use of arrays concept.
Out of Memory displaying Thumbnails in Windows 7 64-Bit with 12GB installed
See more: .NET4
'My VB Code:
Private Sub Thumb()
[code]...
After executing a query with LINQ to SQL, the result I have is an arraylist (.ToList) of items with ID numbers. The number of items and their occurences will vary with each query. I would simply like to count the occurences of each specific ID in the list.
How do I do that??
The only count function I know of (.count() ) is for a count on the entire list. I've also I've been reading on how to loop through the list items but I don't understand how I can do that if I don't know how many specific ID's there will be from each query result.
I am new to VB.NET and I keep telling myself there must be a better way to do what I need to do several times a day which is look into a list and see if that one field is set to true anywhere in that list.
So far, I've been using the For Each statement:
[Code]...
But I know some of the other languages can do something like: if ListOfPlayers(*).isActive == true
which just seems more concise and to the point.
If I have a string like: (240). Is their a easy way to strip out the "(" and ")" so that I am left with 240?
View 3 RepliesI want to replace all occurrences of ' with " within a string.
I know it can be done with the replace function, but I don't know the coding for the ' and " characters
