Aplikasi Pengulangan For Menggunakan Visual Studio

Untuk membuat form seperti ini :

1. Buka Visual Studi punya kamu ,
2. Buat Project seperti form di atas ,
3. Lihat source code di bawah , sesuaikan dengan yang kamu inginkan ,

Public Class Form1

    Private Sub TextBox1_KeyPress(ByVal sender As Object ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress

        If e.KeyChar = Chr(13) Then

            ComboBox1.Items.Add(TextBox1.Text)

        End If

    End Sub

    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim i As Integer

        ListBox1.Items.Clear()

        For i = 5 To Val(TextBox2.Text)

            If i Mod 2 = 0 Then

                ListBox1.Items.Add(i * -1)

            Else

                ListBox1.Items.Add(i)

            End If

        Next

    End Sub

    Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged

    End Sub

    Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

        Dim j, u, y As Integer

        u = 10

        y = 12

        For j = 10 To Val(TextBox2.Text)

            If j Mod u = 0 Then

                ListBox1.Items.Add(j)

                u = j

            Else

                If j Mod y = 0 Then

                    ListBox1.Items.Add(j * -1)

                    y = j

                End If

            End If

        Next

    End Sub

End Class

    4. Coba tekan F5 untuk menjalankan program !