Loading collection data...
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.
My code passes the test and the basic part of the submission test, but the "complex" test in the submission says the String index is out of range -1. Any ideas what is going on?
Edit: I should probably add this is the Java version