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How to Build a Custom HashMap or HashSet in Java – Internals, Code, and Best Practices

Learn how to build a custom HashMap or HashSet from scratch in Java. Understand internal hashing, performance, and use cases with full code examples

Java 21 Map Vs Set Java Memory Model HashSet Internals Custom HashMap Java 8 Streams Java Collections Hashing In Java Java Performance Java Design

Understanding and Preventing Race Conditions in Java Multithreading

Master race conditions in Java: learn their causes, effects, and how to prevent them using synchronized blocks, locks, and modern concurrency tools.

ReentrantLock Synchronized Race Condition Java Memory Model Java.util.concurrent Java Concurrency Volatile Deadlock Callable CompletableFuture Thread Lifecycle Java Multithreading Runnable ExecutorService

Understanding Locks and Intrinsic Locks in Java Multithreading

Learn Java locks and intrinsic locks: how synchronized blocks, ReentrantLock, and StampedLock help manage thread safety in modern concurrent applications

ReentrantLock BlockingQueue Synchronized Race Condition Java Memory Model Java.util.concurrent Thread Lifecycle StampedLock Java Concurrency Intrinsic Lock Callable

Thread Safety with volatile Keyword in Java

Understand Java's volatile keyword for thread safety. Learn how it affects visibility, memory model, and safe communication between threads

Race Condition Java Memory Model Java.util.concurrent Thread Lifecycle Runnable ExecutorService Java Concurrency Volatile Keyword Callable Thread Visibility

ThreadLocal in Java: Isolated Thread Data for Safer Concurrency

Learn how ThreadLocal in Java enables each thread to maintain its own isolated copy of data, avoiding synchronization and ensuring thread safety

Thread Isolation Thread Safety Java Memory Model ThreadLocal Java.util.concurrent Runnable ExecutorService Java Concurrency Thread Lifecycle Callable

Synchronized Blocks vs Synchronized Methods in Java: Key Differences and Best Practices

Understand the difference between synchronized blocks and methods in Java. Learn which to use, when, and how to write efficient thread-safe code

ReentrantLock Synchronized Thread Safety Race Condition Java Memory Model Java.util.concurrent Runnable Java Concurrency Thread Lifecycle Callable

Java Memory Model (JMM) and Happens-Before Relationships Explained

Understand the Java Memory Model and happens-before relationships to write safe and performant concurrent applications. Includes rules, diagrams, and examples

Synchronized Thread Safety Memory Visibility Java Memory Model Java.util.concurrent Thread Lifecycle Java Concurrency Happens Before Volatile Race Conditions

Understanding False Sharing and Cache Coherency in Java Multithreading

Learn how false sharing impacts performance in Java multithreaded applications and how to avoid it using memory padding, @Contended, and best practices.

Thread Contention Thread Safety Java Memory Model Performance Tuning Cpu Cache Java.util.concurrent Cache Coherency Java Concurrency Multithreading False Sharing

Common Mistakes in Java Multithreading and How to Avoid Them

Learn the most common mistakes Java developers make in multithreaded programming and how to avoid them with code examples and best practices

ReentrantLock Java Memory Model Java.util.concurrent Virtual Threads Java Concurrency Callable Deadlock CompletableFuture Thread Lifecycle Runnable ExecutorService Race Condition Structured Concurrency ThreadPoolExecutor

Multithreading Cheat Sheet for Java Developers

A practical cheat sheet for Java multithreading with essential syntax, tips, tools, patterns, and Java 21 updates for fast and safe concurrent programming

Thread Safety CompletableFuture Java Memory Model Java.util.concurrent Thread Lifecycle Virtual Threads ExecutorService Java Concurrency Structured Concurrency Race Conditions ForkJoinPool

Tutorials under 'Java Memory Model'