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Java: Which statement about TreeSet and NavigableSet is the strongest interview answer?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which statement about TreeSet and NavigableSet is the strongest interview answer?

  1. TreeSet and NavigableSet is mostly a naming style choice and has little effect on runtime or design.
  2. TreeSet stores unique elements in sorted order and supports navigational lookups around a target value.
  3. TreeSet and NavigableSet exists mainly to reduce the number of Java files in a project.
  4. TreeSet and NavigableSet matters only for frontend frameworks, not for core Java applications.

Hint

Start with the core rule behind TreeSet and NavigableSet.

Answer and rationale

Correct answer: B. TreeSet stores unique elements in sorted order and supports navigational lookups around a target value.

TreeSet stores unique elements in sorted order and supports navigational lookups around a target value. This is the base concept interviewers commonly test first.

Track: Java