Sort a hashmap and get a key in an order (2nd key, 3rd, etc.)

Question

I have a HashMap<String, Integer> list and I want to sort it by integers and be able to get a key in a certain order (for example: get the 3rd, or 5th key). How do I go by doing this?

What do you mean by "I have a HashMap list"? Do you mean `List>` or something else? Also what do you want to get as result when you "get the 3rd"? — Pshemo, Aug 21 '21 at 14:30
Basically, I'm working on a scoreboard, and I want the player to see their placement, so basically where they are positioned, using the values. — Adya, Aug 21 '21 at 14:32
How about instead of using map using `List` where ScoreInfo will be class holding `String name; Integer score`? — Pshemo, Aug 21 '21 at 14:38

score 3 · Answer 1 · answered Aug 21 '21 at 14:27

You can't sort a HashMap. The order of entries within a HashMap is kinda random.

You could use myMap.keySet() to extract the keys (in random order) and put them in a new ordered collection (= List or SortedSet), for example: new ArrayList<>(myMap.keySet());. And then sort this List.

Or you use a SortedMap with a custom Comparator instead of a HashMap.

Sort a hashmap and get a key in an order (2nd key, 3rd, etc.)

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