Programming Forums > Application Development > Visual Basic .NET

dwizzle13 · Dec 5th, 2006, 5:58 PM

Hi, I need to create a program to tell the position of the letters n and r in a word w/out using indexof, so I need to use word.substring, but for finding if the letter is in the word, I was thinking of using a variable, flag, as boolean to determine if a msgbox saying are you sure you want to continue would pop up, and I have not been able to get that part correct.

With my looking for both r and n process to say t or f for the flag, it thinks I'm converting n to boolean, but n is string. Is this how to do it, thx. Please help.

(Toggle Plain Text)

'look at flag
        Do While word.Substring(L, 1) <> "r"
            L = L + 1
            If word.Substring(L, 1) <> "r" And "n" Then
                flag = True
            End If
        Loop

        If flag = False Then
            z = MsgBox("the word has no r or n.  Quit? y/n", MsgBoxStyle.YesNo, "Quit?")
            If z = 6 Then
                Me.Close()
            End If
        End If

BlackDal · Dec 6th, 2006, 6:51 AM

try this...

(Toggle Plain Text)

        for L as integer = 1 to word.lenght
            If word.Substring(L, 1) <> "r" And word.Substring(L, 1) <> "r" <> "n" Then
                flag = True
            End If
        next

        If not flag Then
            z = MsgBox("the word has no r or n.  Quit? y/n", MsgBoxStyle.YesNo, "Quit?")
            If z = 6 Then
                Me.Close()
            End If
        End If

The Dark · Dec 6th, 2006, 12:09 PM

Quote:

Originally Posted by BlackDal

try this...

(Toggle Plain Text)

        for L as integer = 1 to word.lenght
            If word.Substring(L, 1) <> "r" And word.Substring(L, 1) <> "r" <> "n" Then
                flag = True
            End If
        next

        If not flag Then
            z = MsgBox("the word has no r or n.  Quit? y/n", MsgBoxStyle.YesNo, "Quit?")
            If z = 6 Then
                Me.Close()
            End If
        End If

You might want to ignore that part in red.

BlackDal · Dec 7th, 2006, 4:47 AM

yes
its a typing error.

dwizzle13 · Dec 7th, 2006, 5:58 PM

I figured it out, I made a mistake, and didn't make the if's both = something.

Dec 5th, 2006, 5:58 PM	#1
dwizzle13 Newbie Join Date: Oct 2006 Posts: 19 Rep Power: 0	Boolean Flag issue Hi, I need to create a program to tell the position of the letters n and r in a word w/out using indexof, so I need to use word.substring, but for finding if the letter is in the word, I was thinking of using a variable, flag, as boolean to determine if a msgbox saying are you sure you want to continue would pop up, and I have not been able to get that part correct. With my looking for both r and n process to say t or f for the flag, it thinks I'm converting n to boolean, but n is string. Is this how to do it, thx. Please help. (Toggle Plain Text) 'look at flag Do While word.Substring(L, 1) <> "r" L = L + 1 If word.Substring(L, 1) <> "r" And "n" Then flag = True End If Loop If flag = False Then z = MsgBox("the word has no r or n. Quit? y/n", MsgBoxStyle.YesNo, "Quit?") If z = 6 Then Me.Close() End If End If 'look at flag Do While word.Substring(L, 1) <> "r" L = L + 1 If word.Substring(L, 1) <> "r" And "n" Then flag = True End If Loop If flag = False Then z = MsgBox("the word has no r or n. Quit? y/n", MsgBoxStyle.YesNo, "Quit?") If z = 6 Then Me.Close() End If End If

Dec 6th, 2006, 6:51 AM	#2
BlackDal Newbie Join Date: Feb 2006 Posts: 12 Rep Power: 0	try this... (Toggle Plain Text) for L as integer = 1 to word.lenght If word.Substring(L, 1) <> "r" And word.Substring(L, 1) <> "r" <> "n" Then flag = True End If next If not flag Then z = MsgBox("the word has no r or n. Quit? y/n", MsgBoxStyle.YesNo, "Quit?") If z = 6 Then Me.Close() End If End If for L as integer = 1 to word.lenght If word.Substring(L, 1) <> "r" And word.Substring(L, 1) <> "r" <> "n" Then flag = True End If next If not flag Then z = MsgBox("the word has no r or n. Quit? y/n", MsgBoxStyle.YesNo, "Quit?") If z = 6 Then Me.Close() End If End If

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Dec 7th, 2006, 4:47 AM	#4
BlackDal Newbie Join Date: Feb 2006 Posts: 12 Rep Power: 0	yes its a typing error.

Dec 7th, 2006, 5:58 PM	#5
dwizzle13 Newbie Join Date: Oct 2006 Posts: 19 Rep Power: 0	I figured it out, I made a mistake, and didn't make the if's both = something.

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Programming Forums > Application Development > Visual Basic .NET

Boolean Flag issue