Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents txtFullName As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.txtFullName = New System.Windows.Forms.TextBox()
        Me.SuspendLayout()
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(80, 128)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Button1"
        '
        'txtFullName
        '
        Me.txtFullName.Location = New System.Drawing.Point(48, 64)
        Me.txtFullName.Name = "txtFullName"
        Me.txtFullName.TabIndex = 1
        Me.txtFullName.Text = ""
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.txtFullName, Me.Button1})
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim intLengthOfString As Integer
        Dim intWheresTheSpace As Integer
        Dim strFullName As String
        Dim strFirstName As String
        Dim strLastName As String

        If txtFullName.Text = "" Then
            MsgBox("Your full name must be entered")
            txtFullName.Focus()
            Exit Sub
        End If

        strFullName = txtFullName.Text
        intLengthOfString = Len(strFullName)
        intWheresTheSpace = InStr(strFullName, " ")
        If intWheresTheSpace = 0 Then
            MsgBox("Please enter your full name with a space" & _
                Chr(13) & "between your first anme and last ame")
            txtFullName.Focus()
            Exit Sub
        End If

        strFirstName = Microsoft.VisualBasic.Left(strFullName, intWheresTheSpace - 1)
        strLastName = Microsoft.VisualBasic.Right(strFullName, intLengthOfString - intWheresTheSpace)
        Console.WriteLine("Your first name is: " & strFirstName)
        Console.WriteLine("Your last name is: " & strLastName)

    End Sub
End Class
