Classes

Classes:

In VB.NET, a class is a blueprint or template for creating objects that encapsulate data and behavior. To create a class in VB.NET, we use the Class keyword, followed by the class name, and enclosed within curly braces. A class can have fields, properties, methods, events, and other members.

Example:

vb.netCopy codeClass Employee
    Public Property FirstName As String
    Public Property LastName As String
    Public Property Salary As Double
    
    Public Sub New(ByVal firstName As String, ByVal lastName As String, ByVal salary As Double)
        Me.FirstName = firstName
        Me.LastName = lastName
        Me.Salary = salary
    End Sub
    
    Public Function GetFullName() As String
        Return Me.FirstName & " " & Me.LastName
    End Function
    
    Public Function GetSalary() As Double
        Return Me.Salary
    End Function
End Class

' Create an object of the Employee class and set its properties
Dim john As New Employee("John", "Doe", 50000)

' Access the object's properties and methods
Console.WriteLine(john.GetFullName())
Console.WriteLine(john.GetSalary())

In the above example, we create a class named Employee that has three properties: FirstName, LastName, and Salary. We also define a constructor that initializes these properties, and two methods named GetFullName and GetSalary. We then create an object of the Employee class and set its properties. Finally, we access the object’s properties and methods using the dot notation.