The Comparator Interface in Java
Learn how the Comparator interface enables custom sorting in Java with examples for TreeSet, TreeMap, and PriorityQueue
Learn how the Comparator interface enables custom sorting in Java with examples for TreeSet, TreeMap, and PriorityQueue
Understand the Comparable interface in Java and learn how natural ordering and compareTo improve sorting and object ordering.
Learn about Java Queue implementations, including LinkedList, PriorityQueue, ArrayDeque, and concurrent queues.
Learn how ArrayDeque works in Java. Discover its internal structure, performance, and best use cases with code examples.
Learn how PriorityQueue works in Java. Understand its internal heap structure, performance traits, and real-world use cases with examples.
1. Introduction The Set interface in Java, part of the Java Collections Framework, models the mathematical concept of a set—a collection of distinct elements. Unlike List, a Set does not…
Learn how HashSet works in Java. Understand its internal structure, performance characteristics, and practical use cases.
Discover HashMap in Java—learn about its internal structure, performance characteristics, and practical use cases through detailed examples.
Learn about Map implementations in Java. Compare HashMap, TreeMap, LinkedHashMap, and others to choose the best for your use case.
Explore CopyOnWriteArrayList in Java: thread-safe design, internal structure, performance insights, and practical use cases.