How Hashing Works in HashMap – Step-by-Step Explanation with Diagrams and Code
Learn how hashing works in Java’s HashMap with step-by-step explanation, diagrams, memory model, performance details, and Java 8+ enhancements
Learn how hashing works in Java’s HashMap with step-by-step explanation, diagrams, memory model, performance details, and Java 8+ enhancements
Learn how Java Collections perform under the hood. Explore Big-O complexities for List, Set, Map, and Queue with real-world guidance and Java 8–21 updates.
Learn all about Java's concurrent collections, their thread-safe implementations, performance benchmarks, and best practices for multithreaded apps
Master CopyOnWriteArrayList and CopyOnWriteArraySet in Java with internals, Big-O performance, use cases, Java 8+ features, and best practices
Understand ConcurrentHashMap internals in Java – from segmented locking in Java 7 to bucket locking in Java 8+, with performance benchmarks and real use cases
Learn how PriorityBlockingQueue and DelayQueue work in Java with real-world examples, performance insights, and best practices for concurrency
Learn how BlockingQueue and LinkedBlockingQueue enable robust producer-consumer patterns in Java with real-world examples and concurrency best practices
Understand the differences between synchronized and concurrent collections in Java, with real-world examples, performance benchmarks, and best practices
Learn the difference between IdentityHashMap and WeakHashMap in Java, with internal working, use cases, memory model, and expert-level best practices
Learn how NavigableMap and NavigableSet work in Java with HeadMap, TailMap, descending views, and more. Includes real-world use cases and examples