Option Strict On
Public Class frmCards
    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 lblHand As System.Windows.Forms.Label
    Friend WithEvents btnDeal As System.Windows.Forms.Button
    Friend WithEvents btnExit As System.Windows.Forms.Button
    Friend WithEvents btnClear As System.Windows.Forms.Button
    Friend WithEvents lblResult As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.lblHand = New System.Windows.Forms.Label
        Me.btnDeal = New System.Windows.Forms.Button
        Me.btnExit = New System.Windows.Forms.Button
        Me.btnClear = New System.Windows.Forms.Button
        Me.lblResult = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'lblHand
        '
        Me.lblHand.Location = New System.Drawing.Point(24, 24)
        Me.lblHand.Name = "lblHand"
        Me.lblHand.Size = New System.Drawing.Size(160, 152)
        Me.lblHand.TabIndex = 0
        '
        'btnDeal
        '
        Me.btnDeal.Location = New System.Drawing.Point(200, 24)
        Me.btnDeal.Name = "btnDeal"
        Me.btnDeal.TabIndex = 5
        Me.btnDeal.Text = "Deal"
        '
        'btnExit
        '
        Me.btnExit.Location = New System.Drawing.Point(200, 240)
        Me.btnExit.Name = "btnExit"
        Me.btnExit.TabIndex = 6
        Me.btnExit.Text = "Exit"
        '
        'btnClear
        '
        Me.btnClear.Location = New System.Drawing.Point(200, 64)
        Me.btnClear.Name = "btnClear"
        Me.btnClear.TabIndex = 7
        Me.btnClear.Text = "Clear"
        '
        'lblResult
        '
        Me.lblResult.Location = New System.Drawing.Point(24, 240)
        Me.lblResult.Name = "lblResult"
        Me.lblResult.Size = New System.Drawing.Size(160, 23)
        Me.lblResult.TabIndex = 8
        Me.lblResult.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'frmCards
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 278)
        Me.Controls.Add(Me.lblResult)
        Me.Controls.Add(Me.btnClear)
        Me.Controls.Add(Me.btnExit)
        Me.Controls.Add(Me.btnDeal)
        Me.Controls.Add(Me.lblHand)
        Me.Name = "frmCards"
        Me.Text = "Card Dealer"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub btnDeal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDeal.Click
        Dim rndNum As Random = New Random()
        Dim intX, intY As Integer
        Dim intCardNum As Integer
        Dim intSuitNum As Integer
        Dim intFaceNum As Integer
        Dim intHandIndex As Integer = 0

        Dim Suits As String() = New String() {"Hearts", "Diamonds", _
            "Clubs", "Spades"}
        Dim Faces As String() = New String() {"Ace", "Deuce", "Three", _
            "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", _
            "Jack", "Queen", "King"}
        Dim HandStrength As String() = New String() {"Nothing Special", "There is a pair", _
        "There are two pairs", "There is three of a kind", "There is a full house", _
        "There is four of a kind"}

        Dim Deck As Integer() = New Integer(51) {}
        Dim myHand As String() = New String(5) {}
        Dim myHandPairs As Integer() = New Integer(3) {}
        For intX = 1 To 5
            Do
                intCardNum = rndNum.Next(0, 52)
            Loop Until Deck(intCardNum) = 0
            Deck(intCardNum) = 1
        Next

        lblHand.Text = ""
        For intX = 0 To 51
            If Deck(intX) = 1 Then
                intSuitNum = intX \ 13
                intFaceNum = intX - (intSuitNum * 13)  'or intX mod 13
                lblHand.Text = lblHand.Text + Faces(intFaceNum) + _
                    " Of " + Suits(intSuitNum) + vbCrLf + vbCrLf
                myHand(intHandIndex) = Convert.ToString(intFaceNum)
                intHandIndex += 1
            End If
        Next
        Dim pair As Integer = 0
        ' For testing :)
        myHand = New String() {"Ace", "Three", "Ace", "Ace", "Ace"}
        While pair < 3
            For intY = 0 To 4
                For intX = intY + 1 To 4
                    If (myHand(intY) = myHand(intX)) Then
                        ' Finds the ammount of times that intY is found and
                        ' adds to value in myHandsPairs(pair)
                        myHandPairs(pair) = myHandPairs(pair) + 1
                    End If
                Next
                pair += 1
            Next

        End While

        intHandIndex = myHandPairs(0) + myHandPairs(1) + myHandPairs(2) + myHandPairs(3)

'Problem occurs in the lblResult.text below. If intHandIndex isn't reset to 5, there is an out of bounds error. 
' I`m not sure how to fix this so that intHandIndex will never be 6...
        If (intHandIndex = 6) Then
            intHandIndex = 5
        End If
        lblResult.Text = HandStrength(intHandIndex)

    End Sub

    Private Sub btnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClear.Click
        lblHand.Text = ""
        lblResult.Text = ""
    End Sub

    Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
        Close()
    End Sub
End Class