map - Does Java's LinkedHashMap maintain the order of keys?

Question

(This question already has answers here): question from:https://stackoverflow.com/questions/3478061/does-javas-linkedhashmap-maintain-the-order-of-keys

Answer 1

Yes.

See: LinkedHashMap:

This linked list defines the iteration ordering, which is normally the order in which keys were inserted into the map (insertion-order).

and from the HashMap#keySet documentation:

The set [returned] is backed by the map, so changes to the map are reflected in the set, and vice-versa.