Date: 2015dec15
Language: Java
Keywords: HashMap, Hash
Q. Hashes don't promise any order for keys. Is there a way to keep the keys sorted?
A. Use a TreeMap
It is sorted by the ascending order of the keys - ie alphabetical order.
The official documentation says:
A Red-Black tree based NavigableMap implementation. The map is sorted
according to the natural ordering of its keys, or by a Comparator provided
at map creation time, depending on which constructor is used.
Add a comment
Sign in to add a comment