VB Is telling me that i can't sort my array... and i have no clue why

Question

Here is my code: i have NO idea what is wrong. It is telling me that .sort and .reverse are NOT valid statements. uhm... why?

        

Public Class array
    Private strThings(5) As String

    Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Add.Click

        clearlist()

        strThings(0) = "Hello, and welcome"
        strThings(1) = "What are you doing?"
        strThings(2) = "Why are you doing that?"
        strThings(3) = "Why dont you do this?"
        strThings(4) = "What is your name?"
        strThings(5) = "What is his name?"

        For num As Integer = 0 To (strThings.Length - 1)
            listArrays.Items.Add(strThings(num))
        Next

    End Sub

    Private Sub clearlist()
        listArrays.Items.Clear()

    End Sub

    Private Sub btnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Clear.Click
        clearlist()

    End Sub

    Private Sub btnSort_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Sort.Click
        clearlist()

        strThings(0) = "Hello, and welcome"
        strThings(1) = "What are you doing?"
        strThings(2) = "Why are you doing that?"
        strThings(3) = "Why dont you do this?"
        strThings(4) = "What is your name?"
        strThings(5) = "What is his name?"

        array.Sort(strThings)

        For num As Integer = 0 To strThings.Length - 1
            listArrays.Items.Add(strThings(num))
        Next

    End Sub

    Private Sub reverse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles reverse.Click
        clearlist()

        strThings(0) = "Hello, and welcome"
        strThings(1) = "What are you doing?"
        strThings(2) = "Why are you doing that?"
        strThings(3) = "Why dont you do this?"
        strThings(4) = "What is your name?"
        strThings(5) = "What is his name?"

        array.reverse(strThings)

        For num As Integer = 0 To strThings.Length - 1
            listArrays.Items.Add(strThings(num))
        Next

    End Sub

End Class 

Answer 1

Change the name of your class

  You have named your class "Array" so the compiler gets mixed up,

when you typed "Array.Sort"

it thinks that you are referring to your class, not to the System.Array class

Answer 2

i feel like that is a really stupid mistake... 

thank you though!