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Contoh Kasus Menggunakan Procedure dan Function pada VB.Net

Kasus 1 


Berikut Source Codenya :
Public Class kasus1
    'nadiahtami 2017230007
    Sub agama()
        ComboBox1.Items.Add("Islam")
        ComboBox1.Items.Add("Hindu")
        ComboBox1.Items.Add("Budha")
        ComboBox1.Items.Add("Kristen")
    End Sub
    Sub jurusan()
        ComboBox2.Items.Add("Teknik")
        ComboBox2.Items.Add("Sastra")
        ComboBox2.Items.Add("Manajemen")
        ComboBox2.Items.Add("Kelautan")
    End Sub
    Sub programstudi()
        ComboBox3.Items.Add("D3")
        ComboBox3.Items.Add("D4")
        ComboBox3.Items.Add("S1")
        ComboBox3.Items.Add("S2")
        ComboBox3.Items.Add("S3")
    End Sub
    Sub kota()
        ListBox1.Items.Add("Bekasi")
        ListBox1.Items.Add("Jakarta")
        ListBox1.Items.Add("Semarang")
        ListBox1.Items.Add("Yogyakarta")
        ListBox1.Items.Add("Tegal")
        ListBox1.Items.Add("Solo")
        ListBox1.Items.Add("Bandung")
        ListBox1.Items.Add("Bogor")
    End Sub
    'nadiahtami 2017230007
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        'btn keluar
        Dim pesan As String
        pesan = MsgBox("Yakin ingin keluar?", vbYesNo, "Konfirmasi")
        If pesan = vbYes Then
            End
        End If
    End Sub
    Private Sub kasus1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        agama()
        jurusan()
        programstudi()
        kota()
    End Sub
End Class

Kasus 2 



Berikut Source Codenya :
Public Class kasus2
    ' nadiahtami 2017230007
    Sub bersih()
        TextBox1.Clear()
        TextBox2.Clear()
        TextBox3.Clear()
        TextBox4.Clear()
        TextBox5.Clear()
        TextBox6.Clear()
    End Sub
    Function hitung()
        Dim harga, jumlah, total As Double
        harga = TextBox4.Text
        jumlah = TextBox5.Text
        total = harga * jumlah
        TextBox6.Text = total
        Return total
    End Function
    Sub cekdata()
        If TextBox1.Text = "" Then
            MsgBox("Kode Barang Harus Diisi !!", vbOKOnly, "Konfirmasi")
            TextBox1.Focus()
        ElseIf TextBox2.Text = "" Then
            MsgBox("Nama Barang Harus Diisi !!", vbOKOnly, "Konfirmasi")
            TextBox2.Focus()
        ElseIf TextBox3.Text = "" Then
            MsgBox("Satuan Harus Diisi !!", vbOKOnly, "Konfirmasi")
            TextBox3.Focus()
        ElseIf TextBox4.Text = "" Then
            MsgBox("Harga Satuan Harus Diisi !!", vbOKOnly, "Konfirmasi")
            TextBox4.Focus()
        ElseIf TextBox5.Text = "" Then
            MsgBox("Jumlah Harus Diisi !!", vbOKOnly, "Konfirmasi")
            TextBox5.Focus()
        Else
            Call hitung()
        End If
    End Sub
    'nadiahtami 2017230007
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        'btn clean
        Call bersih()
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        'btn keluar
        Dim pesan As String
        pesan = MsgBox("Yakin ingin keluar?", vbYesNo, "Konfirmasi")
        If pesan = vbYes Then
            End
        End If
    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        'btn hitung
        Call cekdata()
    End Sub
    Private Sub kasus2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Call bersih()
    End Sub
End Class

Kasus 3 


Berikut Source Codenya :
Public Class kasus3
    'nadiahtami 2017230007
    Sub bilanganganjil()
        Dim ganjil As Integer
        ListBox1.Items.Clear()
        ganjil = 1
        Do While ganjil <= 50
            ListBox1.Items.Add(ganjil)
            ganjil = ganjil + 2
        Loop
    End Sub
    Sub bilangangenap()
        Dim genap As Integer
        ListBox1.Items.Clear()
        genap = 0
        Do While genap <= 50
            ListBox1.Items.Add(genap)
            genap = genap + 2
        Loop
    End Sub
    Sub bilanganprima()
        Dim prima, a, b, c As Integer
        ListBox1.Items.Clear()
        For a = 2 To 100
            c = 0
            For b = 2 To a
                prima = a Mod b
                If prima = 0 Then
                    c = c + 1
                End If
            Next b
            If c <= 1 Then
                ListBox1.Items.Add(a)
            End If
        Next a
    End Sub
    Sub proses(ByVal strganjil As String, ByRef strgenap As String, ByVal strprima As String)
        If (ComboBox1.SelectedIndex.Equals(0)) Then
            bilanganganjil()
        ElseIf (ComboBox1.SelectedIndex.Equals(1)) Then
            bilangangenap()
        ElseIf (ComboBox1.SelectedIndex.Equals(2)) Then
            bilanganprima()
        End If
    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        'btn input
        Dim strganjil, strgenap, strprima As Integer
        proses(strganjil, strgenap, strprima)
        jumlah(TextBox1.Text, TextBox2.Text)
    End Sub
    Sub jumlah(ByRef bilangan1 As Integer, ByVal bilangan2 As Integer)
        Dim hasil As Integer
        hasil = bilangan1 + bilangan2
        TextBox3.Text = hasil
    End Sub
    ' nadiahtami 2017230007
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        'btn keluar
        Dim pesan As String
        pesan = MsgBox("Yakin ingin keluar?", vbYesNo, "Konfirmasi")
        If pesan = vbYes Then
            End
        End If
    End Sub
End Class

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