Java Master Reference Ep.8/11 | Concurrency & Multithreading

This is Episode 8 of Java Master Reference — the series where we build a complete, compilable Java project from scratch without frameworks.

Today we tackle the hardest topic in Java: concurrency. In one file — ConcurrencyDemo.java — you’ll understand the tools every developer must know:

🧵 Thread creation — extending Thread vs Runnable lambdas
🔒 Synchronized, AtomicInteger & ReentrantLock — fixing race conditions three ways
📦 Producer‑Consumer with BlockingQueue — the simplest thread‑safe pipeline
⚙️ ExecutorService & thread pools — managing threads without the pain
📤 Callable & Future — getting results back from background tasks
🚀 CompletableFuture — async pipelines, thenCombine, and non‑blocking composition

Every line is written live and explained. This is reference code that will connect to Main.java in the final episode — save it as your concurrency cheat sheet.

🎯 Next: Episode 9 — I/O & file handling. Path, Files, buffered streams, and serialization.

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Видео Java Master Reference Ep.8/11 | Concurrency & Multithreading канала IntSkyll