Simple CALCULATOR - VB.NET

Unknown Reply 6:04 PM

Dear agan-agan para pecinta koding.. lagi-lagi berawal dari tugas kuliah baru-baru ini, dapet tugas buat perhitungan matematika dasar. mari kita belajar bersama-sama lagi. buat yang sudah master mohon petunjuknya, mungkin aplikasi ini terlalu dasar.
seperti pada tutorial sebelumnya silahkan dipersiapkan form kalkulator anda ya paling tidak sama kayak punya saya. ga perlu buat 2 form ya !! itu cuma buat membedakan saja kondisi "ON" atau "OFF" saja.
nah ini dia kodingnya :
Public Class KALKULATOR372

  Dim STR_01 As Double
  Dim STR_02 As Double
  Dim STR_03 As String

  Private Sub BACKSPACE_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BACKSPACE.Click

  Dim X As New Integer

  If (TxtLAYAR.Text.Length > 0) Then

  X = TxtLAYAR.Text.Length
  TxtLAYAR.Text = TxtLAYAR.Text.Remove(X - 1, 1)

  End If

  End Sub

  Private Sub ANGKA_01_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_01.Click

  TxtLAYAR.Text += ANGKA_01.Text

  End Sub

  Private Sub ANGKA_02_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_02.Click

  TxtLAYAR.Text += ANGKA_02.Text

  End Sub

  Private Sub ANGKA_03_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_03.Click

  TxtLAYAR.Text += ANGKA_03.Text

  End Sub

  Private Sub ANGKA_04_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_04.Click

  TxtLAYAR.Text += ANGKA_04.Text

  End Sub

  Private Sub ANGKA_05_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_05.Click

  TxtLAYAR.Text += ANGKA_05.Text

  End Sub

  Private Sub ANGKA_06_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_06.Click

  TxtLAYAR.Text += ANGKA_06.Text

  End Sub

  Private Sub ANGKA_07_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_07.Click

  TxtLAYAR.Text += ANGKA_07.Text

  End Sub

  Private Sub ANGKA_08_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_08.Click

  TxtLAYAR.Text += ANGKA_08.Text

  End Sub

  Private Sub ANGKA_09_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_09.Click

  TxtLAYAR.Text += ANGKA_09.Text

  End Sub

  Private Sub ANGKA_NOL_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_NOL.Click

  TxtLAYAR.Text += ANGKA_NOL.Text

  End Sub

  Private Sub ANGKA_00_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ANGKA_00.Click

  TxtLAYAR.Text += ANGKA_00.Text

  End Sub

  Private Sub SAMADENGAN_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SAMADENGAN.Click

  STR_02 = Val(TxtLAYAR.Text)

  If STR_03 = "--" Then
  TxtLAYAR.Text = STR_01 - STR_02
  ElseIf STR_03 = "+" Then
  TxtLAYAR.Text = STR_01 + STR_02
  ElseIf STR_03 = "X" Then
  TxtLAYAR.Text = STR_01 * STR_02
  ElseIf STR_03 = "/" Then
  TxtLAYAR.Text = STR_01 / STR_02
  End If
  End Sub

  Private Sub CLEAR_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CLEAR.Click

  TxtLAYAR.Text = ""
  STR_03 = ""

  End Sub

  Private Sub KURANG_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KURANG.Click

  STR_01 = Val(TxtLAYAR.Text)
  TxtLAYAR.Text = ""
  STR_03 = KURANG.Text

  End Sub

  Private Sub TAMBAH_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TAMBAH.Click

  STR_01 = Val(TxtLAYAR.Text)
  TxtLAYAR.Text = ""
  STR_03 = TAMBAH.Text

  End Sub

  Private Sub KALI_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KALI.Click

  STR_01 = Val(TxtLAYAR.Text)
  TxtLAYAR.Text = ""
  STR_03 = KALI.Text

  End Sub

  Private Sub BAGI_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BAGI.Click

  STR_01 = Val(TxtLAYAR.Text)
  TxtLAYAR.Text = ""
  STR_03 = BAGI.Text

  End Sub

  Private Sub TITIK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TITIK.Click

  TxtLAYAR.Text += TITIK.Text

  End Sub

  Private Sub BUTTON_NONAKTIF()

  CLEAR.Enabled = False
  BACKSPACE.Enabled = False

  ANGKA_01.Enabled = False
  ANGKA_02.Enabled = False
  ANGKA_03.Enabled = False
  ANGKA_04.Enabled = False
  ANGKA_05.Enabled = False
  ANGKA_06.Enabled = False
  ANGKA_07.Enabled = False
  ANGKA_08.Enabled = False
  ANGKA_09.Enabled = False
  ANGKA_NOL.Enabled = False
  ANGKA_00.Enabled = False

  KALI.Enabled = False
  BAGI.Enabled = False
  TAMBAH.Enabled = False
  KURANG.Enabled = False
  TITIK.Enabled = False
  SAMADENGAN.Enabled = False

  End Sub

  Private Sub BUTTON_AKTIF()

  CLEAR.Enabled = True
  BACKSPACE.Enabled = True

  ANGKA_01.Enabled = True
  ANGKA_02.Enabled = True
  ANGKA_03.Enabled = True
  ANGKA_04.Enabled = True
  ANGKA_05.Enabled = True
  ANGKA_06.Enabled = True
  ANGKA_07.Enabled = True
  ANGKA_08.Enabled = True
  ANGKA_09.Enabled = True
  ANGKA_NOL.Enabled = True
  ANGKA_00.Enabled = True

  KALI.Enabled = True
  BAGI.Enabled = True
  TAMBAH.Enabled = True
  KURANG.Enabled = True
  TITIK.Enabled = True
  SAMADENGAN.Enabled = True

  End Sub

  Private Sub KALKULATOR372_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated

  Call BUTTON_NONAKTIF()

  End Sub

  Private Sub ONOFF_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ONOFF.Click

  If ONOFF.Text = "ON" Then

  Call BUTTON_AKTIF()
  ONOFF.Text = "OFF"

  ElseIf ONOFF.Text = "OFF" Then

  Call BUTTON_NONAKTIF()
  ONOFF.Text = "ON"
  TxtLAYAR.Text = ""

  End If

  End Sub
End Class

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