Visual Basic Loop

ForLoop_v1.vb

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        ListBox1.Items.Clear()
        Dim i As Integer
        For i = 1 To 10
            ListBox1.Items.Add(i)
        Next
    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        ListBox1.Items.Clear()
        Dim i As Integer
        For i = 1 To 10 Step 2
            ListBox1.Items.Add(i)
        Next
    End Sub

    Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
        ListBox1.Items.Clear()
        Dim i As Integer
        For i = 0 To 10 Step 2
            ListBox1.Items.Add(i)
        Next
    End Sub
End Class

ForLoop_v2.vb

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim ad As String
        Dim a As Integer
        ad = InputBox("Kelimeyi Giriniz: ")
        Dim sayac As Integer
        sayac = 1
        For a = 0 To ad.Length - 1
            If ad.Chars(a) = " " Then
                sayac = sayac + 1
            ElseIf ad.Length = sayac = 2 Then
                ad = ad.ToUpper
            End If
        Next
        MsgBox("Cümleniz " & " " & sayac & " " & "kelimeden oluşuyor.")
        MsgBox("Cümleniz= " & " " & ad)
    End Sub
End Class

ForLoop_v3.vb

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim a, b As Integer
        For a = 1 To 10
            For b = 1 To 10
                ListBox1.Items.Add(a & "*" & b & "= " & a * b)
            Next
        Next
    End Sub
End Class

ForLoop_v4.vb

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        ListBox1.Items.Clear()
        Dim ad As String
        Dim a, b As Integer
        ad = "ismail"
        Dim dizi(ad.Length) As String
        For a = 0 To ad.Length - 1
            For b = 0 To a
                dizi(a) = dizi(a) + ad.Chars(b)
            Next
        Next
        For a = 0 To ad.Length - 1
            ListBox1.Items.Add(dizi(a))
        Next
    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        ListBox1.Items.Clear()
        Dim ad As String
        Dim a, b As Integer
        ad = "ismail"
        Dim dizi(ad.Length) As String
        For a = 0 To ad.Length - 1
            For b = 0 To a
                dizi(a) = dizi(a) + ad.Chars(b)
            Next
        Next
        For a = 0 To ad.Length - 1
            ListBox1.Items.Add(dizi(a))
        Next
        For a = ad.Length - 1 To 0 Step -1
            ListBox1.Items.Add(dizi(a))
        Next
    End Sub
End Class