Sequenced Collections
Explore the Java Sequenced Collections API introduced in Java 21 to standardize access to first and last elements in ordered collections. Understand methods like addFirst, addLast, getFirst, reversed, and how SequencedMap preserves insertion order. This lesson helps you write clearer code using ordered collections and prepares you for related Java interview questions.
We'll cover the following...
Java 21 introduced the Sequenced Collections API to provide a consistent interface for ordered collections. Before Java 21, accessing the first or last element required different methods across collection types.
We’ll explore how this modern API standardizes ordered access and simplifies common collection operations.
What problem does the Sequenced Collections API solve?
What are the core interfaces introduced in this API?
How do we access and manipulate elements using SequencedCollection?
We can observe how to ...