Question

что не правильно? (basic)

Private Sub CommandButton1_Click()
Dim A(1 To 5, 1 To 5) As Single
Dim i As Integer, j As Integer, k As Integer
Dim sr As String
k = 0
ListBox1.Clear
For i = 1 To 5
sr = ""
For j = 1 To 5
A(i, j) = i + 0,5j
sr = sr + " " + Format(A(i, j), "0.000") + " "
If (A(i, j) > 1) And (A(i, j) < 2,5) Then k = k + 1
Next j
ListBox1.AddItem (sr)
Next i
TextBox1.Text = Str(k)
End Sub.

Answer 1

Если только синтаксические ошибки убрать, то должно быть так:

Private Sub CommandButton1_Click()
    Dim A(1 To 5, 1 To 5) As Single
    Dim i As Integer, j As Integer, k As Integer
    Dim sr As String
    k = 0
    ListBox1.Clear
    For i = 1 To 5
        sr = ""
        For j = 1 To 5
            A(i, j) = i + 0.5 * j
            sr = sr + " " + Format(A(i, j), "0.000") + " "
            If (A(i, j) > 1) And (A(i, j) < 2.5) Then k = k + 1
        Next j
        ListBox1.AddItem (sr)
    Next i
    TextBox1.Text = Str(k)
End Sub

А если неверно запрограммировано, то надо знать, что и как должно делаться.