Jawaban soal no 3,Pengajiaan pegawai

listingnya :
Public Class Form1

    Private Sub btnlogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnlogin.Click
        If password.Text = "1002267" Then
            Menu_utama.Show()
            Me.Hide()
        Else
            MsgBox("Maaf Password anda masih salah !!!")
        End If
    End Sub
    Private Sub btnkeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnkeluar.Click
        MsgBox("Anda yakin ingin keluar")
        End
    End Sub
End Class


Hasil formnya:

Public Class Menu_utama
    Private Sub KeluarProgramToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KeluarProgramToolStripMenuItem.Click
        MsgBox("Anda yakin ingin keluar dari program ini!")
        End
    End Sub
    Private Sub DataGajiToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataGajiToolStripMenuItem.Click
        data.Show()
        Me.Hide()
    End Sub
End Class

Hasil formnya:

Public Class data

    Private Sub data_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        jabatan.Items.Add("Mandor")
        jabatan.Items.Add("Kepala Bagian")
        jabatan.Items.Add("Staff")
        status.Items.Add("Menikah")
        status.Items.Add("Belum Menikah")
        buat_tabel()
    End Sub
    Sub proses()
        If jabatan.Text = "Mandor" Then
            gaji.Text = "1750000"
            pajak.Text = 0.015 * Val(gaji.Text)
        ElseIf jabatan.Text = "Kepala Bagian" Then
            gaji.Text = "2500000"
            pajak.Text = 0.015 * Val(gaji.Text)
        ElseIf jabatan.Text = "Staff" Then
            gaji.Text = "1250000"
            pajak.Text = 0.015 * Val(gaji.Text)
        End If
        Select Case status.Text
            Case "Menikah" : tunjanganis.Text = 0.09 * Val(gaji.Text)
            Case "Belum Menikah" : tunjanganis.Text = 0
        End Select
        If anak.Text = "1" Then
            tunjgank.Text = 0.03 * Val(gaji.Text)
        ElseIf anak.Text = "2" Then
            tunjgank.Text = 0.07 * Val(gaji.Text)
        ElseIf anak.Text >= "2" Then
            tunjgank.Text = 0.07 * Val(gaji.Text)
        ElseIf anak.Text <= "1" Then
            tunjgank.Text = 0
        End If
        If jabatan.Text = "Mandor" Then
            If lembur.Text = "0" Then
                gjlmbr.Text = 0
            ElseIf lembur.Text = "1" Then
                gjlmbr.Text = 7500
            ElseIf lembur.Text >= "1" Then
                gjlmbr.Text = 7500 * Val(lembur.Text)
            End If
        ElseIf jabatan.Text = "Kepala Bagian" Then
            If lembur.Text = "0" Then
                gjlmbr.Text = 0
            ElseIf lembur.Text = "1" Then
                gjlmbr.Text = 10000
            ElseIf lembur.Text >= "1" Then
                gjlmbr.Text = 10000 * Val(lembur.Text)
            End If
        ElseIf jabatan.Text = "Staff" Then
            If lembur.Text = "0" Then
                gjlmbr.Text = 0
            ElseIf lembur.Text = "1" Then
                gjlmbr.Text = 5000
            ElseIf lembur.Text >= "1" Then
                gjlmbr.Text = 5000 * Val(lembur.Text)
            End If
        End If
        totgj.Text = Val(gaji.Text) + Val(tunjanganis.Text) + Val(tunjgank.Text) + Val(gjlmbr.Text) - Val(pajak.Text)
    End Sub
    Sub buat_tabel()
        With LV
            .Columns.Add("Nama ", 110, HorizontalAlignment.Left)
            .Columns.Add("Jabatan", 90, HorizontalAlignment.Left)
            .Columns.Add("Gaji", 80, HorizontalAlignment.Center)
            .Columns.Add("Status", 100, HorizontalAlignment.Left)
            .Columns.Add("Tunjangan Istri", 98, HorizontalAlignment.Center)
            .Columns.Add("Anak", 40, HorizontalAlignment.Center)
            .Columns.Add("Tunjangan Anak", 98, HorizontalAlignment.Center)
            .Columns.Add("Pajak", 55, HorizontalAlignment.Center)
            .Columns.Add("Lembur", 50, HorizontalAlignment.Center)
            .Columns.Add("Gaji Lembur/jam", 100, HorizontalAlignment.Center)
            .Columns.Add("Total Gaji", 90, HorizontalAlignment.Center)
            .View = View.Details
            .GridLines = True
            .FullRowSelect = True
        End With
    End Sub
    Sub isi_tabel()
        Dim lst As New ListViewItem
        lst.Text = nama.Text
        lst.SubItems.Add(jabatan.Text)
        lst.SubItems.Add(gaji.Text)
        lst.SubItems.Add(status.Text)
        lst.SubItems.Add(tunjanganis.Text)
        lst.SubItems.Add(anak.Text)
        lst.SubItems.Add(tunjgank.Text)
        lst.SubItems.Add(pajak.Text)
        lst.SubItems.Add(lembur.Text)
        lst.SubItems.Add(gjlmbr.Text)
        lst.SubItems.Add(totgj.Text)
        LV.Items.Add(lst)
    End Sub
    Private Sub jabatan_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles jabatan.SelectedIndexChanged
        Call proses()
    End Sub
    Private Sub status_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles status.SelectedIndexChanged
        Call proses()
    End Sub
    Private Sub lembur_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lembur.TextChanged
        Call proses()
    End Sub
    Private Sub anak_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles anak.TextChanged
        Call proses()
    End Sub
    Private Sub btnsimpan_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsimpan.Click
        isi_tabel()
    End Sub
    Private Sub btnbersih_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnbersih.Click
        nama.Text = ""
        jabatan.Text = ""
        gaji.Text = ""
        status.Text = ""
        tunjanganis.Text = ""
        anak.Text = ""
        tunjgank.Text = ""
        pajak.Text = ""
        lembur.Text = ""
        gjlmbr.Text = ""
        totgj.Text = ""
        nama.Focus()
    End Sub
    Private Sub btnhapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapus.Click
        LV.Items.Clear()
    End Sub
    Private Sub btnpilih_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnpilih.Click
        LV.Items.Remove(LV.SelectedItems(0))
    End Sub

    Private Sub btnkeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnkeluar.Click
        MsgBox("Terima Kasih telah melakukan penginputan")
        Menu_utama.Show()
    End Sub
End Class

Hasil formnya: