contoh penggunaan class pada Visual Studio 2010


Contoh penggunaan class pada visual studio 2010


Public Class kelinci
    Inherits Binatang_Peliharaan
    Private warna As String = "Putih"
    Private tempat_tinggal As String
    ReadOnly Property warna_kelinci As String
        Get
            Return warna
        End Get
    End Property
    Property tempattinggal_kelinci As String
        Set(ByVal value As String)
            tempat_tinggal = value
        End Set
        Get
            Return tempat_tinggal
        End Get
    End Property
    Sub New(ByVal tmpttgl As String)
        tempat_tinggal = tmpttgl
    End Sub
End Class

Public Class mobil
    Public Enum Merk
       expander= 0
       toyota= 1
        kijang = 2
        suzuki = 3
    End Enum
    Private bentuk_garansi As garansi =garansi.Baru
    Private jumlah_roda As Integer = 4
    ReadOnly Property Jenis_mobil
        Get
            Return merk
        End Get
    End Property
    ReadOnly Property roda As Integer
        Get
            Return jumlah_ roda
        End Get
    End Property
    Function _garansi(ByVal M As garansi) As String
        If a = garansi.Baru Wortel Then
            Return "Garansi Max 5 Tahun"
        Else
            Return "Tidak Bergaransi"
        End If
    End Function

End Class

Public Class Form1

    Dim kelinci1 As New kelinci("Kandang")

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

        TextBox1.Text = kelinci1.tempattinggal_kelinci
        TextBox2.Text = kelinci1.warna_kelinci
        TextBox3.Text = "Wortel"

        Dim ds As New DataTable
        ds.Columns.Add("v")
        ds.Columns.Add("t")
        ds.Rows.Add({0, "wortel"})
        ds.Rows.Add({1, "Daun"})
        ds.Rows.Add({2, "Serangga"})
        ds.Rows.Add({3, "Daging"})
        ComboBox1.DataSource = ds
        ComboBox1.DisplayMember = "t"
        ComboBox1.ValueMember = "v"

       
    End Sub

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

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox4.Text = kelinci1.Beri_makan(ComboBox1.SelectedValue)
        If TextBox5.Text = "1" Then

            TextBox6.Text = "Max Makanan=300gr"
        Else
            TextBox5.Text = "2"
            TextBox6.Text = "Max Makanan=500gr"
        End If
    End Sub

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

        TextBox4.Text = ""
        TextBox5.Text = ""
        TextBox6.Text = ""

    End Sub

    Private Sub TextBox5_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox5.TextChanged

    End Sub
End Class



Digunakan pada class.vb

Public Class Kelinci
    Private nama As String
    Private usia As Integer
    Private warna As String
    Private jeda_makan As Integer

    Property NamaKelinci As String
        Set(ByVal value As String)
            nama = value
        End Set
        Get
            Return nama
        End Get
    End Property
    Property UsiaKelinci As Integer
        Set(ByVal value As Integer)
            usia = value
        End Set
        Get
            Return usia
        End Get
    End Property
    Property WarnaKelinci As String
        Set(ByVal value As String)
            warna = value
        End Set
        Get
            Return warna
        End Get
    End Property

    Function Makan() As Integer
        jeda_makan = 15
        Return jeda_makan
    End Function

    Function Lapar() As Boolean
        If jeda_makan > 0 Then
            Return False
        Else
            Return True

        End If
    End Function

    Function KurangiJeda() As Integer
        If jeda_makan > 0 Then
            jeda_makan -= 1
        End If
        Return jeda_makan
    End Function
    Sub New(ByVal nm As String, ByVal us As Integer, ByVal wn As String)
        nama = nm
        usia = us
        warna = wn
        jeda_makan = 15
    End Sub
End Class


digunakan pada form1
Public Class Form1
    Dim kelinci1 As Kelinci
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        kelinci1 = New Kelinci("lorry", 3, "putih")
        Call Informasi()
    End Sub
    Sub Informasi()
        TextBox1.Text = kelinci1.NamaKelinci
        TextBox2.Text = kelinci1.UsiaKelinci
        TextBox3.Text = kelinci1.WarnaKelinci
    End Sub
    Function Cek_Lapar() As String
        If kelinci1.Lapar = True Then
            Return "Lapar"
        Else
            Return "Kenyang"
        End If
    End Function

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

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        TextBox4.Text = Cek_Lapar()
        kelinci1.KurangiJeda()
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        kelinci1.Makan()

    End Sub
End Class



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