This week's book giveaway is in the Kotlin forum.
We're giving away four copies of Kotlin for Android App Development and have Peter Sommerhoff on-line!
See this thread for details.
Win a copy of Kotlin for Android App Development this week in the Kotlin forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Devaka Cooray
  • Jeanne Boyarsky
  • Bear Bibeault
Sheriffs:
  • Junilu Lacar
  • Paul Clapham
  • Knute Snortum
Saloon Keepers:
  • Ron McLeod
  • Tim Moores
  • Stephan van Hulst
  • salvin francis
  • Carey Brown
Bartenders:
  • Tim Holloway
  • Frits Walraven
  • Ganesh Patekar

Sybex OCP Java 8 Study Guide: Chapter 3 answers typo  RSS feed

 
Greenhorn
Posts: 13
2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,

In Appendix A, answers to Chapter 3, question 2, the answer is D but at the end of the explanation it says it's E.

2. D. The answer needs to implement Map because you are dealing with key/value pairs per the unique string text. You can eliminate A, C, E, and F immediately. ArrayList and Vector are Lists. HashSet and TreeSet are Sets. Now it is between HashMap and TreeMap. Since the question talks about ordering, you need the TreeMap. Therefore, the answer is E.



 
Mike Constantin
Greenhorn
Posts: 13
2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Also in chapter 3, typo in the choices of question 14:


A. [55. 88] [55, 88]
B. [55. 88] [88, 55]
C. [88. 55] [55, 88]
D. [88. 55] [88, 55]



Should be

A. [55, 88] [55, 88]
B. [55, 88] [88, 55]
C. [88, 55] [55, 88]
D. [88, 55] [88, 55]
 
author & internet detective
Posts: 39129
723
Eclipse IDE Java VI Editor
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Confirmed and added both to the errata. Thanks!
 
All of the world's problems can be solved in a garden - Geoff Lawton. Tiny ad:
RavenDB is an Open Source NoSQL Database that’s fully transactional (ACID) across your database
https://coderanch.com/t/704633/RavenDB-Open-Source-NoSQL-Database
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!