program kalkulator dengan visual studio.net

program ini yang membuat tidak saya sendiri tapi saya mengetik dari modul praktikum pemrograman teknik informatika 2010 STTA Yogyakarta.

inilah tampilannya

dan ini sourcecodenya

Public Class Form1

    Inherits System.Windows.Forms.Form
    Const pi As Single = 3.14
    Public hasil As Single
    Public operator As Byte

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

    Private Sub Button13_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button13.Click
        TextBox1.Text = ""
        hasil = 0
        TextBox1.Focus()
    End Sub

    Private Sub Button14_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button14.Click
        operator = "1"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
        TextBox1.Focus()
    End Sub

    Private Sub Button15_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button15.Click
        operator = "2"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
        TextBox1.Focus()

    End Sub

    Private Sub Button16_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button16.Click
        operator = "3"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
        TextBox1.Focus()
    End Sub

    Private Sub Button17_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button17.Click
        operator = "4"
        hasil = Single.Parse(TextBox1.Text)
        TextBox1.Text = ""
        TextBox1.Focus()
    End Sub

    Private Sub Button18_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button18.Click
        If operator = 1 Then
            hasil += Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil
        ElseIf operator = 2 Then
            hasil -= Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil
        ElseIf operator = 3 Then
            hasil *= Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil
        ElseIf operator = 4 Then
            hasil /= Single.Parse(TextBox1.Text)
            TextBox1.Text = hasil

        End If
    End Sub

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

    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        TextBox1.Text = TextBox1.Text & "0"

    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        TextBox1.Text = TextBox1.Text & "1"
    End Sub

    Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
        TextBox1.Text = TextBox1.Text & "2"
    End Sub

    Private Sub Button12_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button12.Click
        TextBox1.Text = TextBox1.Text & "3"
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = TextBox1.Text & "4"
    End Sub

    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
        TextBox1.Text = TextBox1.Text & "5"
    End Sub

    Private Sub Button11_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button11.Click
        TextBox1.Text = TextBox1.Text & "6"
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox1.Text = TextBox1.Text & "7"
    End Sub

    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        TextBox1.Text = TextBox1.Text & "8"
    End Sub

    Private Sub Button10_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button10.Click
        TextBox1.Text = TextBox1.Text & "9"
    End Sub
End Class

silahkan download programnya disini.

bila ada yang punya program yang lebih baik lagi dapat dishare disini. trimakasih.
ym. bahrie127