The General Chatter Thread.

[Scourge of teh Galaxy]

Hey guys, how's it going?

I'm having a little bit of trouble with Visual Basic.

I'm trying to work an array with a variable, you know, like name(i), i having a value that gets set at the beginning

But, to do a For loop to loop for the number of times equal to i, I called up another element, n. n is an integer like i

The lecture slides say it's okay to do this. In fact, here's its example:


For i = 1 to num_tracks
   names(i) = InputBox(“Name of track ” & i)
   times(i) = InputBox(“Time for track ” & i)
   total_time = total_time + times(i)
Next

next to my current code for this part:

        For n = 1 To i
            'Get runner's name
            '====================
            name(n) = InputBox("Input runner " & n & "'s name")

            'Get a time for each lap
            '====================
            lap1(n) = InputBox("Input the time for " & name(n) & "'s first lap")
            lap2(n) = InputBox("Input the time for " & name(n) & "'s second lap")
        Next


I run a debug test and it gives me an IndexOutOfRangeException and says "Index was outside the bounds of the array"


Here's my full code, btw


Public Class Form1

    Private Sub btnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStart.Click
        '====================
        'Coursework 2012 Program
        'by Student 09001219
        '08/03/2012
        '====================

        'Calling elements and arrays
        '====================
        Dim valid As Boolean
        Dim i As Integer
        Dim n As Integer
        Dim name(i) As String
        Dim lap1(i) As Integer
        Dim lap2(i) As Integer

        'Get valid number of runners
        '====================
        valid = False
            While valid = False
                i = InputBox("Input a number between 2 and 8")
                If i >= 2 Then
                    If i <= 8 Then
                        valid = True
                    End If
                End If
        End While

        'Loop for number of runners
        '====================
        For n = 1 To i
            'Get runner's name
            '====================
            name(n) = InputBox("Input runner " & n & "'s name")

            'Get a time for each lap
            '====================
            lap1(n) = InputBox("Input the time for " & name(n) & "'s first lap")
            lap2(n) = InputBox("Input the time for " & name(n) & "'s second lap")
        Next
        MsgBox("This is one of those boxes you get that proves you've got this far without issue")
    End Sub
End Class

[D3M0NCHR15]

Hey guys, how's it going?

I'm having a little bit of trouble with Visual Basic.

I'm trying to work an array with a variable, you know, like name(i), i having a value that gets set at the beginning

But, to do a For loop to loop for the number of times equal to i, I called up another element, n. n is an integer like i

The lecture slides say it's okay to do this. In fact, here's its example:


For i = 1 to num_tracks
   names(i) = InputBox(“Name of track ” & i)
   times(i) = InputBox(“Time for track ” & i)
   total_time = total_time + times(i)
Next

next to my current code for this part:

        For n = 1 To i
            'Get runner's name
            '====================
            name(n) = InputBox("Input runner " & n & "'s name")

            'Get a time for each lap
            '====================
            lap1(n) = InputBox("Input the time for " & name(n) & "'s first lap")
            lap2(n) = InputBox("Input the time for " & name(n) & "'s second lap")
        Next


I run a debug test and it gives me an IndexOutOfRangeException and says "Index was outside the bounds of the array"


Here's my full code, btw


Public Class Form1

    Private Sub btnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStart.Click
        '====================
        'Coursework 2012 Program
        'by Student 09001219
        '08/03/2012
        '====================

        'Calling elements and arrays
        '====================
        Dim valid As Boolean
        Dim i As Integer
        Dim n As Integer
        Dim name(i) As String
        Dim lap1(i) As Integer
        Dim lap2(i) As Integer

        'Get valid number of runners
        '====================
        valid = False
            While valid = False
                i = InputBox("Input a number between 2 and 8")
                If i >= 2 Then
                    If i <= 8 Then
                        valid = True
                    End If
                End If
        End While

        'Loop for number of runners
        '====================
        For n = 1 To i
            'Get runner's name
            '====================
            name(n) = InputBox("Input runner " & n & "'s name")

            'Get a time for each lap
            '====================
            lap1(n) = InputBox("Input the time for " & name(n) & "'s first lap")
            lap2(n) = InputBox("Input the time for " & name(n) & "'s second lap")
        Next
        MsgBox("This is one of those boxes you get that proves you've got this far without issue")
    End Sub
End Class

erm...  ... .........nope it's gone............ah who am I kidding? I HATE PROGRAMMING...... I CAN NEVER UNDERSTAND IT (give me 2 years on a project then I'll be sussed)

[Incredirobotwars]

I run a debug test and it gives me an IndexOutOfRangeException and says "Index was outside the bounds of the array"


Here's my full code, btw


Public Class Form1

    Private Sub btnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStart.Click
        '====================
        'Coursework 2012 Program
        'by Student 09001219
        '08/03/2012
        '====================

        'Calling elements and arrays
        '====================
        Dim valid As Boolean
        Dim i As Integer
        Dim n As Integer
        Dim name(i) As String
        Dim lap1(i) As Integer
        Dim lap2(i) As Integer

        'Get valid number of runners
        '====================
        valid = False
            While valid = False
                i = InputBox("Input a number between 2 and 8")
                If i >= 2 Then
                    If i <= 8 Then
                        valid = True
                    End If
                End If
        End While

        'Loop for number of runners
        '====================
        For n = 1 To i
            'Get runner's name
            '====================
            name(n) = InputBox("Input runner " & n & "'s name")

            'Get a time for each lap
            '====================
            lap1(n) = InputBox("Input the time for " & name(n) & "'s first lap")
            lap2(n) = InputBox("Input the time for " & name(n) & "'s second lap")
        Next
        MsgBox("This is one of those boxes you get that proves you've got this far without issue")
    End Sub
End Class

OK, start by removing that messagebox that's there to prove it's there. A far simpler way is to click on the grey tab to the side of each line of code where you want it to make sure it's at. The line will turn red when it's highlighted. What will then happen is the program will pause, the code will show, and you can check it's there and/or hover the mouse over variables to check their values.

Now, I would suggest doing this at any point where there is an 'n' integer or 'i' integer in that line of code. When the program stops at each line, check the values of the integers in this line to make sure they don't equal something out of range (eg. 0, -1, etc.). If they do, a '+1' needs to go somewhere, or a value somewhere in the code needs to be changed.

If the problem isn't one of the values being out of the array's defined range, then PM me the code with the debugged line highlighted, and I'll see if something else is amiss.

EDIT: I feel so stupid now. Your array needs to be defined as between certain values, eg. names(1 to 8)
(sorry I didn't notice this. I was too busy playing Skyrim...)

[GoldenFox93]

[Preytor_4]

March 10th was Mario day, just tought I should let you know.

[GoldenFox93]

March 10th was Mario day, just tought I should let you know.

I'm really happy for you and Imma let you finish, but Bacon has the best day of all time- Bacon Day is the 1st September.

[Preytor_4]

March 10th was Mario day, just tought I should let you know.

I'm really happy for you and Imma let you finish, but Bacon has the best day of all time- Bacon Day is the 1st September.

March 10th was Mario day, just tought I should let you know.

I'm really happy for you and Imma let you finish, but Bacon has the best day of all time- Bacon Day is the 1st September.

True, but Mario day is awesome because of this:

March 10th
March 10
Mar 10
Mar10
Mario

MARIO

[That Robot is a Spy!]

March 10th was Mario day, just tought I should let you know.

I'm really happy for you and Imma let you finish, but Bacon has the best day of all time- Bacon Day is the 1st September.

Ironically, this is my dad and one of my best friends birthdays.

[Philippa]

March 10th was Mario day, just tought I should let you know.

I'm really happy for you and Imma let you finish, but Bacon has the best day of all time- Bacon Day is the 1st September.

I <3 September 1st!

[Mr. AS]

March 10th was Mario day, just tought I should let you know.

i forgot to do the mario!
...

[Enigm@]

okay i'm having a problem.. every time I try to stream a video on youtube, my computer sh**s itself and lags to all bloody hell..

what do ?

[smashysmashy]

okay i'm having a problem.. every time I try to stream a video on youtube, my computer sh**s itself and lags to all bloody hell..

what do ?

Don't go on Youtube and lurk GTM for a bit?

[GoldenFox93]

March 10th was Mario day, just tought I should let you know.

i forgot to do the mario!
...

Here you are-

Do the Mario! Swing your arms, from side to side, come on it's time to go, Do the Mario...

[Enigm@]

No as in when someone even embeds a video my computer has a heart attack..

[Mr. AS]

youtube is pretty much made to rape your RAM chip 6 ways from sunday

[Enigm@]

whoops it only does this with chrome.

brb updating flash.

[Badger]

Speaking of browsers, what do you guys use?

Nightly FTW; 64-bit version of Firefox. Just as fast as Chrome for me, amd crashes less.

[Philippa]

Morning all.

Pi day today. Guess whose maths teacher is going way over the top with circles today?

[Jonzu95]

Chrome all the way. Mozilla is ok, explorer is poor.

[RammingSpeed]

Used to use explorer, just changed about 3 weeks ago.