Kalkulator Sederhana

Public Class Form1

    Inherits System.Windows.Forms.Form
    Public hasil As Single
    Public tanda As Byte

    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
        tanda = "1"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
    End Sub

    Private Sub Button10_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button10.Click
        tanda = "2"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
    End Sub

    Private Sub Button14_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button14.Click
        tanda = "3"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
    End Sub

    Private Sub Button18_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button18.Click
        tanda = "4"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
    End Sub

    Private Sub Button17_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button17.Click
        If tanda = 1 Then
            hasil += Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil
        ElseIf tanda = 2 Then
            hasil -= Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil
        ElseIf tanda = 3 Then
            hasil *= Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil
        ElseIf tanda = 4 Then
            hasil /= Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil

        End If
    End Sub

    Private Sub Button16_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button16.Click
        TextBox1.Text = TextBox1.Text + "."
    End Sub

    Private Sub Button15_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button15.Click
        TextBox1.Text = TextBox1.Text & "0"
    End Sub

    Private Sub Button11_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button11.Click
        TextBox1.Text = TextBox1.Text & "1"
    End Sub

    Private Sub Button12_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button12.Click
        TextBox1.Text = TextBox1.Text & "2"
    End Sub

    Private Sub Button13_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button13.Click
        TextBox1.Text = TextBox1.Text & "3"
    End Sub

    Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
        TextBox1.Text = TextBox1.Text & "4"
    End Sub

    Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
        TextBox1.Text = TextBox1.Text & "5"
    End Sub

    Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click
        TextBox1.Text = TextBox1.Text & "6"
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        TextBox1.Text = TextBox1.Text & "7"
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        TextBox1.Text = TextBox1.Text & "8"
    End Sub

    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        TextBox1.Text = TextBox1.Text & "9"
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = ""
        hasil = 0
        TextBox1.Focus()
    End Sub
End Class



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