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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.
look more carefuly at the description : it mentions the method
getNext()to get the nextnode. So, in order to get the next node, you can donode = node.getNext().the
nodeobject is given as an argument, and is an instance of a custom class defined somewhere else.As the challenge require you don't modify these, it does not really matter what its implementation is.
trailing whitespace?
Katakana uses multi-byte characters in UTF-8.