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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I believe it's the hash value (someone please correct me if I'm wrong) and I'm unsure why it's the hash that gets printed out and not what you see. To print out what you're expecting, see here: http://stackoverflow.com/questions/11399950/why-do-i-get-garbage-values-when-print-arrays-in-java#11399956
Write a print statement at the beginning of your function printing out the list.
How do I turn garbage into an actual array of ints?
I get this: [I@5cad8086
and it's the correct answer, but I want it to be an actual readable answer..