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.
This doesn't handle null check . what is str is null ? your code throws NullPointerException
This doesn't handle null check .
what is
stris null ? your code throws NullPointerExceptionThis comment is hidden because it contains spoiler information about the solution
Awesome solution!
This is what I attempted
Great code. Didn't know you could replace multiple letters using brackets like that!