B4J Question 2 dimensional array dimension.

Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    
    Dim Col As Int = 5
    Dim Row As Int = 4
    Dim Matrix(Col,Row) As Int
End Sub

Sub printGrid(g(,) As Int)
    Dim t As String
    For y=0 To g.Length-1
        For x=0 To g.Length-1
            If x=0 Then
                t=t & g(x,y)
            Else
                t=t & "," & g(x,y)
            End If
        Next
        t=t & CRLF
    Next
    Log(t)
End Sub

Dim mda(5,3) As Int
   
    Dim Result As Map = GetDimensions(mda)
    Log("Cols : " & Result.Get("Cols"))
    Log("Rows : " & Result.Get("Rows"))

Private Sub GetDimensions(A As Object) As Map
    Dim Jo As JavaObject
    Jo.InitializeStatic("java.util.Arrays")
    Dim L As List = Jo.RunMethod("asList",Array(A))
    Dim Cols As Int = L.Size
    Dim A1() As Int = L.Get(0)
    Dim Rows As Int = A1.Length
    Return CreateMap("Cols":Cols,"Rows":Rows)
End Sub