VB Program- Count Letters?

Nov 4, 2011

i cant get it to work.I am creating an application on visual basic that displays the number of times a specific letter occurs in a word or phrase. (both upper and lower case counts)So far this is what i have, and its not working:

private sub BtnCountLetter_Click(ByVal sender As object, ByVal e As System.EventArgs) Handles BtnCountLetter.Click
Dim strText As String

[code].....

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Count Occurrences Of Letters In A String?

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QuoteWrite 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].....

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Count The Occurrences Of Letters In A String?

Nov 5, 2009

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].....

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[code]...

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Public Class frmAlphabetical
Private Sub btnPress_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPress.Click

[Code].....

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[Code]...

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[Code]...

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Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code]...

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