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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.
The arrayStore exception was personally one of the hardest. The answer lies in using a specific Java class that is based on Arrays, as the exception name suggests. No more hints, now get back there and show them what you got.
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