Area of the Circle Solver in VB.NET

In this article I would like to share with you guys a sample program that will ask the radius value of the circle and then the program will compute the area of the circle using Microsoft Visual Basic NET.

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Sample Program Output

Program Listing

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

      

    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

        End

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim radius As Integer

        Dim area As Single

        Dim PI As Single = 3.14F

        radius = Val(TextBox1.Text)

        area = (PI * radius * radius)

        TextBox2.Text = "The area of the circle is " & area

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

        TextBox1.Text = ""

        TextBox2.Text = ""

        TextBox1.Focus()

    End Sub

End Class