Cats And Dogs!

Dog Class:
This class contains a constructor Sub (New) and method for example, Bark and Go Walkies were the ones we used in the Sub (New) method. we also included the prperties of the dog such an Name Age and Breed.

Cat Class:
This class also contains a constructor Sub (New) for this constructor method we use, Meow and Chase Mouse were used for this method. we also included in the Cat Class the Name Age and Breed of the cat.

The constructor Method prepares the object for use in the program. the code in the constructor method moves before anything else will in the method. if the user writes no code for the program to read VB will automatically gather information that must be processed to complete the object so it can be used.

VB.NET Classes and Ojects

Classes and Objects

Classes are types and Objects are instances of the Class. Classes and Objects are very much related to each other. Without objects you can't use a class. In Visual Basic we create a class with the Class statement and end it with End Class. The Syntax for a Class looks as follows:

Public Class Test

----- Variables
-----Methods
-----Properties
-----Events

End Class

The above syntax created a class named Test. To create a object for this class we use the new keyword and that looks like this: Dim obj as new Test(). The following code shows how to create a Class and access the class with an Object. Open a Console Application and place the following code in it.

Module Module1
Imports System.Console

Sub Main()
Dim obj As New Test()
'creating a object obj for Test class
obj.disp()
'calling the disp method using obj
Read()
End Sub

End Module

Public Class Test
'creating a class named Test
Sub disp()
'a method named disp in the class
Write("Welcome to OOP")
End Sub
End Class