You should post code snippets that are simple, self-contained compilable
examples, what folk call "SSCCE"s. (Examples that show compiler errors are
actually non-compilable, but should generate the exact error message under
consideration.) In your example it would help us to see the code that
generates the output that you describe.

You haven't shown us the part of the code that displays the "response",
presumably a "System.out.println()" or similar. Undoubtedly you fed the array
variable directly to that part of the code:

  System.out.println( aGame );

Read the Javadocs for the println() method. You will see that for an arbitrary
Object it uses the argument's "toString()" method. That method shows the class
name, the '@' symbol and a number that identifies the object, unless you
override it.

So what you saw, "Nim@125b750" is the default toString() for your Nim class.
"[I@13b8f62" is the toString() for the array. The arcane symbol "[I" is the
Java identifier for the int array class, just like "Nim" was the identifier
for the Nim class.

You could write a Nim.toString() that loops through the array and concatenates
each array element.

- Lew

On Feb 19, 8:05 am, psm...@mcwy.com wrote:

You're using Nim.toString(), either implicitly or explictly and you're
getting the default toString().

Either override toString() in class Nim or provide some
other method for returning the numbers as a String:

public String toString()
{
   String result = "";
   for (int i=0; i<counters.length; i++)
      result += String.format("%s%d", (i==0)?"":", ", counters[i]);
   return result;
}