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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.
Oh, you are right.
To pass "testException" in Java you have to throw an exception in "next()" if the string is empty, which is not obvious. Returning null or new Token(null, null) in "next()" or false in "hasNext()" doesn't work.
Description says that legs are "abcdefghijklmnopqrstuvwxyz", when they can also be in the upper case.
What the hell
Great kata, I like it!