On 11/06/16 01:41, David Holmes wrote:
Better, but I still wonder what Arrays.toString prints for an empty array?

It prints "[]" - like Collections.emptyList().toString():

  System.out.println("null:                         "
          + Arrays.toString((Object[])null));
  System.out.println("new Object[0]:                "
          + Arrays.toString(new Object[0]));
  System.out.println("Arrays.asList(new Object[0]): "
          + Arrays.asList(new Object[0]));

> null:                         null
> new Object[0]:                []
> Arrays.asList(new Object[0]): []

cheers,

-- daniel

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