Review Questions

11.1 Which of these are core interfaces in the collections framework?

Select the three correct answers.

  1. Set

  2. Bag

  3. LinkedList

  4. Collection

  5. Map

11.2 Which of these implementations are provided by the java.util package?

Select the two correct answers.

  1. HashList

  2. HashMap

  3. ArraySet

  4. ArrayMap

  5. TreeMap

11.3 What is the name of the interface used to represent collections that maintain non-unique elements in order?

Select the one correct answer.

  1. Collection

  2. Set

  3. SortedSet

  4. List

  5. Sequence

Get Programmer's Guide to Java™ Certification, A: A Comprehensive Primer, Second Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial