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Simple interest and Compound interest in VB.NET.(textboxes and radio button that calculate interest)

PROPERTIES:
Label
Text
Amount
Labe2
Text
Rate(per year)
Labe3
Text
Year
Labe4
Text
Compounding Period
RadioButton1
Text
Simple Interest
RadioButton2
Text
Compound Interset
Button1
Text
OK
CODEING:
Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        If RadioButton1.Checked = True Then
            Label5.Text = "Simple Interest:" & (Val(TextBox1.Text) * (Val(TextBox2.Text) / 100) * Val(TextBox3.Text) / 100)
        ElseIf RadioButton2.Checked = True Then
            Label5.Text = "Compund Interest:" & Val(TextBox1.Text) * ((1 + ((Val(TextBox2.Text) / 100) / NumericUpDown1.Value)) ^ (NumericUpDown1.Value * Val(TextBox3.Text)))
        End If
    End Sub
    Private Sub RadioButton2_CheckedChanged(sender As Object, e As EventArgs) Handles RadioButton2.CheckedChanged, RadioButton1.CheckedChanged
        If RadioButton2.Checked Then
            NumericUpDown1.Visible = True
            Label4.Visible = True
        Else
            NumericUpDown1.Visible = False
            Label4.Visible = False
        End If
    End Sub
End Class
DESIGNING:

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