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Review Questions

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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



    		List of Figures
    		List of Tables
    		List of Examples
    		Foreword
    		Preface
    		Chapter 1. Basics of Java Programming
    		Chapter 2. Language Fundamentals
    		Chapter 3. Operators and Assignments
    		Chapter 4. Declarations and Access Control
    		Chapter 5. Control Flow, Exception Handling, and Assertions
    		Chapter 6. Object-oriented Programming
    		Chapter 7. Nested Classes And Interfaces
    		Chapter 8. Object Lifetime
    		Chapter 9. Threads
    		Chapter 10. Fundamental Classes
    		Chapter 11. Collections and Maps
    		11.1 The Collections Framework
    		11.2 Collections
    		Review Questions
    		11.3 Sets
    		11.4 Lists
    		Review Questions
    		11.5 Maps
    		11.6 Sorted Sets and Sorted Maps
    		Review Questions
    		11.7 Implementing the 'equals()', 'hashCode()', and 'compareTo()' Methods
    		11.8 Working with Collections
    		Review Questions
    		Chapter Summary
    		Programming Exercises
    		Appendix A. Taking the SCPJ2 1.4 Exam
    		Appendix B. Objectives for the SCPJ2 1.4 Exam
    		Appendix C. Objectives for the Java 2 Platform Upgrade Exam
    		Appendix D. Annotated Answers to Review Questions
    		Appendix E. Solutions to Programming Exercises
    		Appendix F. Mock Exam
    		Appendix G. Number Systems and Number Representation
    		Appendix H. About the CD
    		Single-User License Agreement