In this tutorial, we cover how to create a class, how to add members to a class and how to create an instance of a class. This is one of the core concepts of the language itself and it is vital that you understand it. A class is like a blank canvas or a template for the object that you will create. An object is an instance of a class, and so all objects are unique but similar. This concept may be difficult to grasp at first but should be easy enough if you stick at it.
Public Class person Public firstname As String Public lastname As String Public eyecolour As String Public haircolour As String Public Sub setvalues(ByVal first As String, ByVal last As String, ByVal eye As String, ByVal hair As String) firstname = first lastname = last eyecolour = eye haircolour = hair End Sub End Class
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim bob As New person bob.firstname = "bob" bob.lastname = "smith" bob.eyecolour = "brown" bob.haircolour = "black" bob.setvalues("bob", "smith", "brown", "black") MessageBox.Show("Bobs hair colour is " & bob.haircolour) End Sub End Class