Yuk,belajar konsep pemograman Visualbasic
1. Buatlah form seperti gambar dibawah ini.

2. Ketiklah listing sperti berikut ini :
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e AsSystem.EventArgs) Handles MyBase.Load
npm.Items.Add("12111000")
npm.Items.Add("12111001")
npm.Items.Add("12111011")
Me.Text = " FORM NILAI "
Me.BackColor = Color.Green
kdosen.Items.Add("01")
kdosen.Items.Add("02")
kdosen.Items.Add("03")
kode_mt.Items.Add("001")
kode_mt.Items.Add("002")
kode_mt.Items.Add("003")
nk.Items.Add("50")
nk.Items.Add("60")
nk.Items.Add("70")
nk.Items.Add("80")
nk.Items.Add("90")
nt.Items.Add("50")
nt.Items.Add("60")
nt.Items.Add("70")
nt.Items.Add("80")
nt.Items.Add("90")
nuts.Items.Add("50")
nuts.Items.Add("60")
nuts.Items.Add("70")
nuts.Items.Add("80")
nuts.Items.Add("90")
nu.Items.Add("50")
nu.Items.Add("60")
nu.Items.Add("70")
nu.Items.Add("80")
nu.Items.Add("90")
End Sub
Private Sub npm_SelectedIndexChanged(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles npm.SelectedIndexChanged
Select Case npm.Text
Case "12111000"
nama.Text = "Valentino"
jenjang.Text = "S1"
jurusan.Text = "Tehnik Informatika"
Case "12111001"
nama.Text = "Pedrosa"
jenjang.Text = "D3"
jurusan.Text = "Manajemen Informatika"
Case Else
nama.Text = "Lorenzo"
jenjang.Text = "D1"
jurusan.Text = "teknik komputer"
End Select
End Sub
Private Sub kdosen_SelectedIndexChanged(ByVal sender AsSystem.Object, ByVal e As System.EventArgs) Handleskdosen.SelectedIndexChanged
If kdosen.Text = "01" Then
ndosen.Text = "Mesran"
ElseIf kdosen.Text = "02" Then
ndosen.Text = "Toni Limbong"
ElseIf kdosen.Text = "03" Then
ndosen.Text = "Sinar Sinurat"
End If
End Sub
Private Sub hapus_Click(ByVal sender As System.Object, ByVal e AsSystem.EventArgs) Handles hapus.Click
npm.Text = ""
nama.Text = ""
jenjang.Text = ""
jurusan.Text = ""
kdosen.Text = ""
ndosen.Text = ""
kode_mt.Text = ""
mkuliah.Text = ""
nk.Text = ""
nt.Text = ""
nu.Text = ""
nu.Text = ""
nakhir.Text = ""
nhuruf.Text = ""
keterangan.Text = ""
End Sub
Private Sub keluar_Click(ByVal sender As System.Object, ByVal e AsSystem.EventArgs) Handles keluar.Click
Me.Close()
End Sub
Private Sub kode_mt_SelectedIndexChanged(ByVal sender AsSystem.Object, ByVal e As System.EventArgs) Handleskode_mt.SelectedIndexChanged
Select Case kode_mt.Text
Case "001"
mkuliah.Text = "visuL Basic"
Case "002"
mkuliah.Text = "kalkulus"
Case Else
mkuliah.Text = "Matriks"
End Select
End Sub
Private Sub proses_Click(ByVal sender As System.Object, ByVal e AsSystem.EventArgs) Handles proses.Click
nakhir.Text = 0.1 * nk.Text + 0.15 * nt.Text + 0.3 * nu.Text + 0.45 * nu.Text
If nakhir.Text >= 80 Then
nhuruf.Text = "A"
keterangan.Text = "sangat memuaskan"
ElseIf nakhir.Text >= 70 Then
nhuruf.Text = "B"
keterangan.Text = "memuaskan"
ElseIf nakhir.Text >= 60 Then
nhuruf.Text = "C"
keterangan.Text = "cukup memuaskan"
ElseIf nakhir.Text >= 50 Then
nhuruf.Text = "D"
keterangan.Text = " buruk"
Else
nhuruf.Text = "E"
keterangan.Text = "sangat buruk"
End If
End Sub
End Class
Tekan F5 maka hasilnya akan seperti dibawah ini !!!

=> SELAMAT MENCOBA.
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