Consider the following code snippet:
Map<String, Integer> scores;
If you need to visit the keys in sorted order, which of the following statements will create a structure to support this?

Question

Consider the following code snippet: Map scores; If you need to visit the keys in sorted order, which of the following statements will create a structure to support this? A)scores = new HashTable<>; B)scores = new HashMap<>; C)scores = new TreeMap<>; D)scores = new Map<>;

Quizplus · Accepted Answer

A TreeMap is a structure that orders the keys in sorted order, so it is the best choice for visiting the keys in sorted order. The other options, HashTable, HashMap, and Map, do not provide any guarantees about the order in which keys are stored or retrieved.

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