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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.
Java
My problem is when i hit attemp i always get this
For input string: ""
static test are passing just fine and here is also test case with string""
i am not rly sure what i have wrong in code