Menu,Toolbar,Statusbar dan kriptografisesar

Public Class Form1

    Private Sub form1ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripMenuItem1.Click
        Form2.MdiParent = Me
        Form2.Show()
    End Sub

    Private Sub KeluarToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KeluarToolStripMenuItem.Click
        End
    End Sub

 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class
listing program Kriptografi Cessar
Public Class Form2

    Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        a()
    End Sub

    Private Sub Btnenkripsi_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Btnenkripsi.Click
        Dim x As String = ""
        Dim xkalimat As String = ""
        For i = 1 To Len(plain.Text)
            x = Mid(plain.Text, i, i)
            x = Chr(Asc(x) + 3)
            xkalimat = xkalimat + x
        Next
        chiper.Text = xkalimat
    End Sub

    Private Sub Btndekripsi_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Btndekripsi.Click
        Dim x As String = ""
        Dim xkalimat As String = ""
        For i = 1 To Len(chiper.Text)
            x = Mid(chiper.Text, i, i)
            x = Chr(Asc(x) - 3)
            xkalimat = xkalimat + x
        Next
        plain.Text = xkalimat
    End Sub
End Class