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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.
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thanks!
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That's Java 11 or later
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Is checking for null or returning string smaller/equal 4 must have?
I did code like this and it has no error with empty string and properly showing 1-4 character strings
You could use the string repeat function tocreatedthe masked part
here better to use StringBuilder.
Ah interesting I had no idea that existed
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put str.kength() in an integer variable for more neat code
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