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.
i dont know how does this mean"Character.getNumericValue" may be turn the number of each location to sth? its much things for me to learn...
this intWordsCount variable is not necessary
No need for String result. You can also return String str