You need the candidates sorted by vote count descending. What is a practical Java approach?

Question

You need the candidates sorted by vote count descending. What is a practical Java approach?

Option A — Correct answer

Sort a list copied from map.entrySet() using comparingByValue().reversed()

Map entries can be copied to a list and sorted by value.

Option B

Call HashMap.sort() directly

Option C

Use Character.isDigit()

Option D

Use volatile on the map

Explanation

Copy entrySet into a list and sort entries with comparingByValue().reversed().

Quiz: Collection Comparisons