Write a programin VB.Net to design following form. Accept Number from user with proper validations Select radio button ,after clicking command button display result in textbox.if number2 is entered zero and operator is division then display error message 'Divide By Zero' in result textbox.(use exception handling)

Public Class Form1


    Private Sub butexit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butexit.Click

        Application.Exit()

    End Sub


    Private Sub butcal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butcal.Click

        Dim A, B, R As Integer


        A = Convert.ToDouble(txtno1.Text)

        B = Convert.ToDouble(txtno2.Text)


        Try


            If rdbadd.Checked = True Then

                R = A + B

            ElseIf rdbdiv.Checked = True Then

                R = A / B

            ElseIf rdbmul.Checked = True Then

                R = A * B

            ElseIf rdbsub.Checked = True Then

                R = A - B

            End If

            txtres.Text = R

        Catch ex As Exception

            txtres.Text = "Divide By Zero Error"

        End Try


    End Sub

End Class