Public Class Form1
Private Sub btn_Sphere_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Sphere.Click
Dim Radius, Volume As Double
Radius = Val(TextBox1.Text)
Volume = Math.Round(4 / 3 * 3.1416 * (Radius ^ 3), 3)
lblResult.Show()
lblResult.Text = "Volume = (4/3*3.1416*(Radius ^ 3) :>> " & Volume
End Sub
Private Sub btn_Cone_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Cone.Click
Dim Radius, Height, Volume As Double
Radius = Val(TextBox1.Text)
Height = Val(TextBox3.Text)
Volume = Math.Round(1 / 3 * 3.1416 * (Radius ^ 2) * Height, 3)
lblResult.Show()
lblResult.Text = "Volume = (1/3*3.1416*(Radius ^ 2)*Height:>> " & Volume
End Sub
Private Sub btn_Cube_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Cube.Click
Dim Side, Volume As Double
Side = Val(TextBox1.Text)
Volume = Math.Round(Side ^ 3, 3)
lblResult.Show()
lblResult.Text = "Volume = Side^3:>> " & Volume
End Sub
Private Sub btn_Cylinder_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Cylinder.Click
Dim Radius, Height, Volume As Double
Radius = Val(TextBox1.Text)
Height = Val(TextBox3.Text)
Volume = Math.Round(3.1416 * (Radius ^ 2) * Height, 3)
lblResult.Show()
lblResult.Text = "Volume = 3.1416*(Radius^2)*Height:>> " & Volume
End Sub
Private Sub btn_Tank_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Tank.Click
Dim Length, Width, Height, Volume As Double
Length = Val(TextBox1.Text)
Width = Val(TextBox2.Text)
Height = Val(TextBox3.Text)
Volume = Math.Round(Length * Width * Height, 3)
lblResult.Show()
lblResult.Text = "Volume = Length*Width*Height:>> " & Volume
End Sub
Private Sub btn_Pyramid_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Pyramid.Click
Dim Side, Height, Volume As Double
Side = Val(TextBox2.Text)
Height = Val(TextBox3.Text)
Volume = Math.Round(1 / 3 * (Side ^ 2) * Height, 3)
lblResult.Show()
lblResult.Text = "Volume = 1/3*(Side^2)*Height:>> " & Volume
End Sub
Private Sub btn_Cap_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Cap.Click
Dim Radius, Height As Double
Radius = Val(TextBox1.Text)
Height = Val(TextBox3.Text)
Volume = Math.Round(1 / 3 * 3.1416 * (Radius ^ 3) + 3.1416 * (Radius ^ 2) * Height, 3)
lblResult.Show()
lblResult.Text = "Volume = 1/3*pi*(Radius^3)+pi*(Radius^2)*Height:>> " & Volume
End Sub
Private Sub btn_Frustum_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Frustum.Click
Dim Radius_1, Radius_2, Height As Double
Radius_1 = Val(TextBox1.Text)
Radius_2 = Val(TextBox2.Text)
Height = Val(TextBox3.Text)
Volume = Math.Round(1 / 3 * 3.1416 * Height * ((Radius_1 ^ 2) + (Radius_1 ^ Radius_2) + (Radius_2 ^ 2)), 3)
lblResult.Show()
lblResult.Text = "Volume = 1/3*pi*Height*((Rad1^2)+(Rad1*Rad2)+(Rad2^2)):>> " & Volume
End Sub
Private Sub lblFrustum_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblFrustum.Click
TextBox1.Show()
TextBox2.Show()
TextBox3.Show()
lblRad_1.Show()
lblRad_2.Show()
lblHeight.Show()
btn_Frustum.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub lblCone_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblCone.Click
TextBox1.Show()
TextBox3.Show()
lblRad_1.Show()
lblHeight.Show()
btn_Cone.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub lblCylinder_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblCylinder.Click
TextBox3.Show()
TextBox1.Show()
lblRad_1.Show()
lblHeight.Show()
btn_Cylinder.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub lblCube_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblCube.Click
TextBox1.Show()
lblSide.Show()
btn_Cube.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub lblTank_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblTank.Click
lblLength.Show()
lblWidth.Show()
lblHeight.Show()
btn_Tank.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub lblPyramid_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblPyramid.Click
TextBox3.Show()
TextBox2.Show()
lblHeight.Show()
lblWidth.Show()
btn_Pyramid.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub lblCap_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblCap.Click
TextBox3.Show()
TextBox1.Show()
lblRad_1.Show()
lblHeight.Show()
btn_Cap.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub lblSphere_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblSphere.Click
TextBox1.Show()
lblRad_1.Show()
btn_Sphere.Show()
lblSphere.Hide()
lblCone.Hide()
lblCube.Hide()
lblCylinder.Hide()
lblTank.Hide()
lblPyramid.Hide()
lblCap.Hide()
lblFrustum.Hide()
End Sub
Private Sub btnReset_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReset.Click
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox1.Hide()
TextBox2.Hide()
TextBox3.Hide()
lblRad_1.Hide()
lblRad_2.Hide()
lblSide.Hide()
lblLength.Hide()
lblWidth.Hide()
lblHeight.Hide()
btn_Sphere.Hide()
btn_Cone.Hide()
btn_Cube.Hide()
btn_Cylinder.Hide()
btn_Tank.Hide()
btn_Pyramid.Hide()
btn_Cap.Hide()
btn_Frustum.Hide()
lblResult.Hide()
lblSphere.Show()
lblCone.Show()
lblCube.Show()
lblCylinder.Show()
lblTank.Show()
lblPyramid.Show()
lblCap.Show()
lblFrustum.Show()
End Sub
End Class
Public Module Program
Public Sub Main(args() As string)
Console.WriteLine("Hello, World!")
End Sub
End Module Write, Run & Share VB.net code online using OneCompiler's VB.net online compiler for free. It's one of the robust, feature-rich online compilers for VB.net language, running on the latest version 16. Getting started with the OneCompiler's VB.net compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as VB.net. OneCompiler also has reference programs, where you can look for the sample code to get started with.
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Public Module Program
Public Sub Main(args() As string)
Dim name as String = Console.ReadLine() ' Reading input from STDIN
Console.WriteLine("Hello " & name) ' Writing output to STDOUT
End Sub
End Module
Visual Basic is a event driven programming language by Microsoft, first released in the year 1991.
Variable is a name given to the storage area in order to identify them in our programs.
Simple syntax of Variable declaration is as follows
Dim variableName [ As [ New ] dataType ] [ = initializer ]
variableName = value
If condition-expression Then
'code
End If
If(conditional-expression)Then
'code if the conditional-expression is true
Else
'code if the conditional-expression is false
End If
If(conditional-expression)Then
'code if the above conditional-expression is true
Else If(conditional-expression) Then
'code if the above conditional-expression is true
Else
'code if the above conditional-expression is false
End If
If(conditional-expression)Then
'code if the above conditional-expression is true
If(conditional-expression)Then
'code if the above conditional-expression is true
End If
End If
Select [ Case ] expression
[ Case expressionlist
'code ]
[ Case Else
'code ]
End Select
For counter [ As datatype ] = begin To end [ Step step ]
'code
[ Continue For ]
'code
[ Exit For ]
'code
Next [ counter ]
For Each element [ As datatype ] In group
'code
[ Continue For ]
'code
[ Exit For ]
'code
Next [ element ]
While conditional-expression
'Code
[ Continue While ]
'Code
[ Exit While ]
'Code
End While
Do { While | Until } conditional-expression
'Code
[ Continue Do ]
'Code
[ Exit Do ]
'Code
Loop
Do
'Code
[ Continue Do ]
'Code
[ Exit Do ]
'Code
Loop { While | Until } conditional-expression
Procedure is a sub-routine which contains set of statements. Usually Procedures are written when multiple calls are required to same set of statements which increases re-usuability and modularity.
Procedures are of two types.
Functions return a value when they are called.
[accessModifiers] Function functionName [(parameterList)] As returnType
'code
End Function
Sub-procedures are similar to functions but they don't return any value.
Sub ProcedureName (parameterList)
'Code
End Sub