If you dont specify a subscript (eg, x in your case) for an array, only the array name is considered.
Since the array itself doesnt contain data, its elements contain data, when you print only the data type is printed.
The data type of the array is System.String[] therefore when you are printing, you get System.String[] as output.
Try it out with an array of ints. You will get System.Int32 as output. That will prove this fact.