Tutorials under 'Java Collections'

HashSet vs TreeSet vs LinkedHashSet – Comparison Table and Best Use Cases

Compare HashSet, TreeSet, and LinkedHashSet in Java. Understand their differences, internal workings, performance, and best use cases with real code

LinkedHashSetHashMap InternalsJava SetJava 21Red Black TreeTreeSetJava 8 StreamsJava CollectionsSet ComparisonJava PerformanceHashSet

Java Queue Interface – FIFO Explained with Examples

Master the Java Queue interface with FIFO behavior, real-world examples, performance insights, internal workings, and best practices using Java 8–21.

BlockingQueueJava 21Java QueueJava 8 StreamsJava CollectionsFIFOPriorityQueueJava PerformanceDequeConcurrent CollectionsLinkedList

PriorityQueue in Java – Min-Heap Implementation Explained

Learn how PriorityQueue works in Java with min-heap internals, performance, use cases, and Java 8–21 functional examples and comparisons

Java 21Java QueueComparable ComparatorJava Data StructuresJava 8 StreamsJava CollectionsJava InterviewPriorityQueueMin HeapJava Performance

Deque and ArrayDeque in Java – Stack + Queue in One

Master Deque and ArrayDeque in Java. Learn internal workings, real-world use cases, code examples, performance tips, and Java version updates

Java Interview QuestionsJava Deque ExampleJava Data StructuresJava Stack Vs QueueJava 8 StreamsJava CollectionsJava PerformanceDeque Vs QueueArrayDeque Vs LinkedListJava ArrayDeque Internals

LinkedList as Queue and Deque – Dual Use Case in Java

Understand how Java's LinkedList implements both Queue and Deque interfaces. Explore syntax, internals, use cases, and performance

Collection FrameworkJava QueueLIFOData StructuresJava 8 StreamsJava DequeJava ListJava CollectionsFIFOJava PerformanceLinkedList

Java Map Interface – Key-Value Pairs Simplified for High-Performance Data Handling

Learn everything about the Java Map interface – syntax, internal working, hashing, and performance tips with real-world examples and Java 8+ features

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HashMap in Java – Internal Working and Hashing Explained

Master Java’s HashMap – Learn internal working, hashing, performance, memory model, and modern best practices for high-performance Java development.

HashMap InternalsJava 21 CollectionsJava Data StructuresJava 8 StreamsJava CollectionsJava MapHashMap PerformanceJava HashingEquals And HashCodeTreeMap Vs HashMap

LinkedHashMap in Java – Mastering Access Order vs Insertion Order for Real-World Applications

Understand LinkedHashMap in Java – its internal structure, insertion vs access order, performance, Java 8+ features, and best practices with real-world examples

HashMap InternalsAccess OrderLRU Cache JavaInsertion OrderJava StreamsJava CollectionsJava MapLinkedHashMapJava 8 FeaturesJava 21 Performance

TreeMap in Java – SortedMap and Red-Black Tree Explained for High-Performance Sorted Collections

Learn TreeMap in Java – how it maintains sorted order using Red-Black Tree, its API, performance, Java 8+ features, and best practices for real-world use.

TreeMap JavaNavigableMapRed Black TreeHashMap Vs TreeMapTreeMap InternalsSortedMapJava 8 StreamsJava CollectionsJava MapJava 21 Improvements

Hashtable and Properties in Java – Understanding Legacy Map Implementations for Compatibility and Configuration

Dive into Java’s legacy Map implementations – Hashtable and Properties. Learn their internals, usage, differences, and best practices for modern Java development

Map Interface JavaHashMap Vs HashtableHashtable JavaThread Safe MapsJava 8 StreamsJava CollectionsJava ConfigurationProperties JavaLegacy MapJava 21 Improvements

EnumMap and WeakHashMap in Java – Specialized Map Variants for Performance and Memory Efficiency

Learn Java’s specialized maps – EnumMap and WeakHashMap. Explore their structure, use cases, performance, memory model, and real-world applications

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HashMap vs TreeMap vs LinkedHashMap – Side-by-Side Performance and Use Case Comparison

Understand the key differences between HashMap, TreeMap, and LinkedHashMap. Learn internal working, order, performance, and ideal use cases in Java

SortedMap Vs HashMapJava ProgrammingHashMap Vs TreeMapJava 8 CollectionsJava 21 FeaturesJava CollectionsBig O In Java MapsJava Map InternalsLinkedHashMap JavaJava Maps Comparison

Java Collection Internals – Deep Dive into Memory, Resizing, and Performance Optimization

Dive deep into Java Collection internals—learn how memory, resizing, and performance affect List, Set, and Map structures with Java 8–21 optimizations

HashMap InternalsBig O In JavaJava 21 CollectionsArrayList ResizingJava PerformanceCollections ResizingJava 8 StreamsJava Memory ModelJava GC TuningJava Collections

Fail-Fast vs Fail-Safe Iterators in Java – A Deep Dive into Concurrent Modification Handling

Understand Fail-Fast vs Fail-Safe iterators in Java. Learn internal mechanisms, real-world use cases, Java 8+ enhancements, and best practices for safe iteration

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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

HashMap InternalsCollision ResolutionHashMap ResizingRed Black TreesJava 8 StreamsJava Memory ModelJava CollectionsHashCode And EqualsJava 21 CollectionsJava Hashing

Java Collections and Big-O Time Complexity – Performance Guide for Every Data Structure

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.

Java Performance TuningJava 21 CollectionsJava Data StructuresJava List Vs SetArrayList Vs LinkedListCollection FrameworkTime Complexity JavaBig O ComplexityJava CollectionsHashMap Performance

Concurrent Collections in Java – Thread-Safe Alternatives

Learn all about Java's concurrent collections, their thread-safe implementations, performance benchmarks, and best practices for multithreaded apps

Java Best PracticesCollections FrameworkThread SafetyJava 21 FeaturesJava 8 StreamsJava CollectionsConcurrentHashMapJava MultithreadingJava PerformanceCopyOnWriteArrayList

CopyOnWriteArrayList and CopyOnWriteArraySet in Java – Internal Working, Performance, and Use Cases

Master CopyOnWriteArrayList and CopyOnWriteArraySet in Java with internals, Big-O performance, use cases, Java 8+ features, and best practices

List Vs SetPerformance TuningJava 21 FeaturesJava 8 StreamsJava ConcurrencyJava CollectionsCopyOnWriteArraySetCopyOnWriteArrayListThread Safe Collections

ConcurrentHashMap in Java – Segmentation to Bucket Locking Explained

Understand ConcurrentHashMap internals in Java – from segmented locking in Java 7 to bucket locking in Java 8+, with performance benchmarks and real use cases

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PriorityBlockingQueue and DelayQueue in Java – Mastering Advanced Concurrent Queues for High-Performance Tasks

Learn how PriorityBlockingQueue and DelayQueue work in Java with real-world examples, performance insights, and best practices for concurrency

BlockingQueueDelayQueue Use CaseConcurrent QueuesJava MultithreadingThread Safe CollectionsDelayQueuePriorityBlockingQueueProducer ConsumerJava 21 UpdatesJava CollectionsJava ConcurrencyJava Performance