How in Visual Basics change characters in a string for example (1 to 0) and (0 to 1)?

Question

How in Visual Basics change characters in a string for example (1 to 0) and (0 to 1) without the problem of changing them first to all to 0 and then all to 1, i want to get a result for example like that "00110010101101001010" to "11001101010010110101" (to flip it)

What have you done to try to solve this yourself? – Peter Brittain Jul 20 '15 at 22:59 — Peter Brittain, Jul 20 '15 at 22:59
@PeterBrittain it's not the question – IRONALEKS Jul 20 '15 at 23:10 — IRONALEKS, Jul 20 '15 at 23:10

score 2 · Accepted Answer · answered Jul 20 '15 at 22:35

2

Use an intermediate value.

Change all 0 -> 2
Change all 1 -> 0
Change all 2 -> 1

answered Jul 20 '15 at 22:35

Greg

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score 1 · Answer 2 · answered Jul 21 '15 at 02:06

1

How about this:

    Dim text = "00110010101101001010"
    Dim flipped = New String(text.Select(Function(c) If(c = "0"c, "1"c, "0"c)).ToArray())

That gives me:

11001101010010110101

answered Jul 21 '15 at 02:06

Enigmativity

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score 0 · Answer 3 · answered Jul 21 '15 at 02:00

Another option is to convert the string to a character array iterate over each character individually; then build a new string from the modified array (or overwrite the original):

    Dim data As String = "00110010101101001010"
    Dim arr() As Char = data.ToCharArray
    For i As Integer = 0 To arr.Length - 1
        arr(i) = If(arr(i) = "1", "0", "1")
    Next
    Dim data2 As New String(arr)
    Debug.Print(data)
    Debug.Print(data2)

How in Visual Basics change characters in a string for example (1 to 0) and (0 to 1)?

3 Answers3