List, Set, and Map Interfaces
Explore the core Java collections interfaces—List, Set, and Map—and understand their structural contracts and modern usage patterns. Learn how to effectively choose and use these interfaces by examining their common implementations such as HashSet, TreeSet, LinkedHashSet, and immutable Maps. This lesson prepares you to answer interview questions and apply Java collections efficiently.
We'll cover the following...
The Java collections framework relies on three primary interfaces to organize data. Understanding the structural contracts of lists, sets, and maps allows us to select the most efficient data structure for a given algorithm.
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We’ll explore these core interfaces and their modern implementation patterns:
What defines the List interface and its primary implementations?
Modern Java provides factory methods for creating unmodifiable lists. The following example shows how to ...