6. Classes, properties, constructors and Shared members

Public Class Customer
    Private _name As String
    Private Shared _count As Integer               ' Shared = C# static

    Public Property Id As Integer                   ' auto-implemented property
    Public ReadOnly Property CreatedOn As Date = Date.UtcNow

    Public Property Name As String                  ' full property with validation
        Get
            Return _name
        End Get
        Set(value As String)
            If String.IsNullOrWhiteSpace(value) Then Throw New ArgumentException("Name required")
            _name = value.Trim()
        End Set
    End Property

    Public Sub New(name As String)                  ' constructor
        Me.Name = name                              ' Me = C# this
        _count += 1
    End Sub

    Public Shared ReadOnly Property Count As Integer
        Get
            Return _count
        End Get
    End Property

    Public Overrides Function ToString() As String
        Return $"{Id}: {Name}"
    End Function
End Class

Dim c As New Customer("Asha") With {.Id = 1}       ' object initializer uses With { .Prop = value }