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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.
Input can be modified. Random tests can be manipulated by this: https://www.codewars.com/kata/reviews/54ac36e71a3e805228000276/groups/62404da69953ea000111e2e0
Not an issue
A comparator doesn't care about that. It just tells whether one element is greater/smaller/equal than the other.
I really liked that you offered links to help pages!
Please indicate whether you want the cats sorted by wieght ascending or descending. :)
Having public fields isn't seen as good practice in Java. It would be better with private fields, and getters to access the values
This comment is hidden because it contains spoiler information about the solution
Oops! Changed it in the test code, but not the example cases.
Should be better now :)
Test code references CatComparator instead of CatWeightComparator (which causes a compile error until you fix it).
The strings in the provided test cases need some cleaning up for grammar and spelling (mast vs must, then vs than)