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When to use abstract classes vs interfaces in Java

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

Java development kitJava collections framework

Java Collection Overhead

In this article, we will concentrate on the overhead caused by lists that contain two or three elements, which can be easily overlooked.

Java virtual machineJava collections frameworkDifference between sizeInitial capacityInefficient collectionGarbage collection

Java 21 Sequence Collection

Java 21 introduces SequenceCollection, enabling precise control over ordered collections with methods like addFirst, addLast, and reversed.

Encounter orderJava collections frameworkData collectionJava native interface

Abstract classes vs interfaces in Java

When should you choose an abstract class over an interface in Java? Take the challenge! Learn the difference between these Java language elements and how to use them in your programs.

Java development kitJava collections framework

Debugging JCF Issues in Production

Outside of the language itself, collections are the most basic building block for Java applications. How do we expose them for debugging?

Java collections frameworkJava collectionsSpring bootJava streams

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