Win a copy of High Performance Python for Data Analytics this week in the Python 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
  • Paul Clapham
  • Ron McLeod
  • Bear Bibeault
  • Liutauras Vilda
Sheriffs:
  • Jeanne Boyarsky
  • Tim Cooke
  • Junilu Lacar
Saloon Keepers:
  • Tim Moores
  • Tim Holloway
  • Stephan van Hulst
  • Jj Roberts
  • Carey Brown
Bartenders:
  • salvin francis
  • Frits Walraven
  • Piet Souris

Sybex OCP Java 8 Study Guide: Chapter 3 answers typo

 
Greenhorn
Posts: 13
2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • 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
    Number of slices to send:
    Optional 'thank-you' note:
  • 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: 40400
821
Eclipse IDE VI Editor Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Confirmed and added both to the errata. Thanks!
 
Mo-om! You're embarassing me! Can you just read a tiny ad like a normal person?
the value of filler advertising in 2020
https://coderanch.com/t/730886/filler-advertising
reply
    Bookmark Topic Watch Topic
  • New Topic