Area of Circle
This program will find the Area of Circle by entering Radius in the Text box. Two Text box created. One is to enter Radius and another one to display Area of Circle. When user clicks solve button it will display the result. This source code developed using Visual studio 2008 and it works in Visual studio 2012.
Area of Circle
Programming language: Visual studio 2008 (VB.NET)
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Source code:
Public Class Form1
Private Sub btnSolve_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSolve.Click
Dim area, pi As Double
Dim r As Integer
area = 0.0
pi = 3.1416
r = Convert.ToInt16(txtRadius.Text)
area = 2 * pi * r * r
txtArea.Text = Convert.ToString(area)
End Sub
End Class