Programmer's Guide to Java™ Certification, A: A Comprehensive Primer, Second Edition

Chapter 11. Collections and Maps

Exam Objectives Make appropriate selection of collection classes/interfaces to suit specified behavior requirements. Distinguish between correct and incorrect implementations of hashCode() (and equals()) methods.

Supplementary Objectives Identify the core collection interfaces and their inheritance relationships: Collection, Set, SortedSet, List, Map, SortedMap. Understand the differences between collections and maps. Understand the operations performed by the addAll(), removeAll(), and retainAll() methods in the Collection interface. Recognize destructive and non-destructive collection operations. Understand how data can be passed between collections. Identify the implementations of the core collection interfaces ...