Imports System
Public Class Program
Public Shared Sub ShiftArrayToLeft(ByVal arr As Integer(), ByVal size As Integer)
Dim temp As Integer = arr(0)
For i As Integer = 0 To size - 1 - 1
arr(i) = arr(i + 1)
Next
arr(size - 1) = temp
End Sub
Public Shared Sub Main(ByVal args As String())
Dim arr As Integer() = New Integer() {1, 2, 3, 4, 5, 6, 7, 8, 9}
Dim size As Integer = arr.Length
ShiftArrayToLeft(arr, size)
For i As Integer = 0 To size - 1
Console.Write(arr(i) & " ")
Next
End Sub
End Class
' run:
'
' 2 3 4 5 6 7 8 9 1
'