Write A Program Using A For Next Loop To Accept A Word As Input?

Apr 28, 2012

I need to write a program using a For Next loop to accept a word as input and determine if its letters are in alphabetical order.

This is the code I came up with but am getting the error "Index and length must refer to a location within the string. Parameter name: length" at run time when I click the button.

Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

[Code].....

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Get The App To Accept Numeric And Operator Input While Ignoring All The Alpha Input?

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I am writing a calculator app in VB Express 2008. I'm trying to get the app to accept numeric and operator input while ignoring all the alpha input. In other words taking input from the numeric keypad and the top of the keyboard and ignoring all the letters.

Here's the block of code I have so far:

Private Sub TextBox1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
If (e.KeyCode >= Keys.D0 OrElse e.KeyCode >= Keys.NumPad0) And (e.KeyCode <= Keys.D9 OrElse e.KeyCode <= Keys.NumPad9) Then
Select Case e.KeyCode

[code]....

I can't get vb to recognize the above code it seems to skip right over it. BTW, is 'Keys.Crsel' the same as the caret '^' symbol?

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I need to write a program in vb.net using Do while, for next and do loop. Th eprogram will sum all the even integers between 2 and 50. This is what I have so far

Dim intCount, intNumber as integer
intCount = 0
intNumber = 0

[code].....

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I am working on an assignment for my Programming Logic and Design class. I also noticed a couple other similar posts but after going through them I still have an issue. I was suppose to write a program that will allow input of three test scores, average them then display a letter grade in a box. At this point the only thing that is being displayed is "F". [code]

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I am trying to write a program that allows user input information and plot a bifurcation diagram that looks like this:I haven't program in 2 years:sick: so I am all rusty and such. Here is what I have got so far and more information about what I am doing.

Bifurcation:
f(x) = kx(1-x)
and k = xL + i * (xR-xL) / 500

when i runs from 0 to 500, it plots (i, f(seed)), (i, f(f(seed)), .... up to the boundary number.Here is what I have got so far. Everything seems normal, however, I am really confused when it comes to plotting.

[Code]...

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Write A Program That Requests A Word Containing The Two Letters?

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(Write a program that requests a word containing the two letters r and n as input and determines which of the two letters appears first. If the word does not contain both of the letters, the program should so advise the user.)I got the program to work but he said its wrong because we need to have it looping and if one of the letters is missing you also have to say which one is missing.I have some of the pseudo code but I don't know how to make it work.If Index of("R") = 0 or index of ("N") = 0 Find out which is missing and display message.Else Find larger and display message.

[code]...

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I'm currently in VB class at my highschool and we just got chapter 6.1 to read on this online textbook that we follow. Anyway, we are doing loops now and the problem reads "Write a program to request positive numbers one at a time from the user in an input dialog box. The user should be instructed to enter -1 after all the positive numbers have been supplied. At that time, the program should display the sum of the numbers." So far I know this much

[Code]...

Now I know this isn't right But I can't find out how I'd pull out the numbers the user entered to get the sum of them and not include -1 because as it stands, when I hit ENTER with -1 the label just shows -1.

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Making A Input Box Accept @?

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This is the program that i made for class to be a calculator for shopping

Public Class frmHarrysGroceryCalculator
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
'exit button ep

[code]....

I want to be able to use the @ i.e 3@10, meaning 3 items at 10 dollars, in the input box.

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Problem Specification: The Caswell Catering and Convention Service want to install a computerized billing system. You are to develop the application to accept as input the following items:

a.The Name of the customer (string).
b.The number of adults to be served (byte).
c.The number of children to be served (byte).
d.The cost per adult meal (single).
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f.Amount of deposit which is deducted from the bill.

The following is a sample application's input section [code]...

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''Public Function buildpacket(pdu As Integer) is what I want.
Public Function buildpacket(pdu As String)
Dim packet As String

[code]....

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Here is the code for it

Do Until lstCourse.Items.Count = CDbl(txtClasses.Text)
InputBox("Enter Course Number", "Course Number")
strCourse = InputBox("Enter Course Number", "Course Number")
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[Code]...

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I have written a custom Bindable RichText Box, so I can bind to the Document property. However, as soon as I set my document content, the only keyboard input it accepts is the backspace key (???). No other keyboard input is acknowledged (including the arrow keys).

[Code]...

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Option Strict On Public Class Form1 Private Sub btnDistance_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDistance.Click 'The btnEnterSpeed click event accepts and displays up to ten speeds from the user'and then calculates and displays average speed

[Code]...

I cannot figure out how to incorporate the number of days into the input box then get it to loop and count the number of times the User inputs in the number of days. Then I have to incorporate it into the equation to get the total distance D = MPH * Hours. What I have right now wil not count up the number of days and locks up after I input one number and will not add anything to the listbox. Because I also have to make sure that they cant add nonnumaric values and the number of hours per day cannot exceed 20. I have put things in and taken them out but it has been 2 days and I am lost now

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All i want to do is write some text into word... some of the text is normal text the other is bold... how do I achieve this?The samples I have seen, they either do normal text or bold.. but in different lines utilising InsertParagraphAfter()I need to have both in the one lineie how do i do the following line? using vb.net and word automation (word 2010)

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This displays as many numbers as i want but will also display a single letter.

Private Sub txtEnterGrades_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtEnterGrades.KeyPress
Dim intKeyValue As Integer

[Code].....

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Input Box And Do Until Loop

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Private Sub btnVE_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnVE.Click
Dim Displacment As Single
Dim RPM As Single
txtDisplacment.Text = Displacment
txtRPM.Text = RPM
Do Until "N" Or "n"
Loop
End Sub

That is my code so far. I am confused on how to do a do until loop withna input box that will onyl have "N""n" or "Y""y" in it. The text for the input box is "Do you wish to continue?" Then you enter Y for example which then has to make the textboxs blank and put the focus on the first one and then repate the process until the user enters N.

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