CODEWITHSUNDEEP
java
chickflicksaturdays
chickflicksaturdays

Reputation: 11

How to sort a String array in alphabetical order without using compareTo?

I’m trying to sort through a String array of names. I have two different string arrays for first names and last names and I’m trying to sort through them in alphabetical order without using any kind of array sorting. Is there any kind of way to tell Java whether we want our String array going from increasing to decreasing order?

Upvotes: 1

Views: 80

Answers (1)

sprinter
sprinter

Reputation: 27966

Generally classes extend Comparable and implement compareTo in order to designate a natural order for their objects. However you could write your own Comparator<String> that performs a custom ordering.

Comparator<String> myOrder (s1, s2) -> ... calculate order ...
Arrays.sort(stringArray, myOrder);

Once you've defined a Comparator you can reverse it with .reversed() which would make you sort in descending rather than ascending order:

Arrays.sort(stringArray, myOrder.reversed());

Upvotes: 1

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