Masterclass: Java Multithreading: The Hardest Interview Topic Simplified

Date: 11-03-2026 Time: 08:00 PM

Vishal

SDE III @ JPMorganChase with 8+ Years of Experience

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About Masterclass

Modern backends face bursty traffic, slow I/O, and CPU-heavy work. Mastering concurrency (many tasks progressing) and multithreading (many threads executing) lets Java teams ship services that are fast, resilient, and cost-efficient - especially with Java 21+ Virtual Threads.

Masterclass Outcomes

Threading & Async: Executor Service, Thread Pool Executor, ForkJoinPool, Scheduled Executor Service, CompletableFuture, Virtual Threads, Structured Concurrency (StructuredTaskScope).
Coordination & Data: BlockingQueue, Semaphore, CountDownLatch, Phaser, ConcurrentHashMap, LongAdder, StampedLock.
Reactive stacks: Java Flow, Project Reactor, RxJava, Spring WebFlux (when event-loop style fits).
Performance patterns: Producer/consumer, fan-out/fan-in, pipelining, batching, lock striping, LMAX Disruptor.

Meet Our Host

Experienced Data Scientist with a demonstrated history of working in the logistics and supply chain industry. Skilled in Python,SQL, Machine Learning, GenAI and Deep learning Strong engineering professional with a Bachelor of Technology - BTech focused in Computer Science from manav rachna international university.

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About Crio.Do

At Crio.Do, we believe that the best way to learn is by doing. Our mission is to empower aspiring developers and data enthusiasts through hands-on learning experiences that go beyond theory. Our unique approach combines real-world projects, industry-relevant skills, and expert-led guidance to prepare you for the challenges of today’s tech industry. Each Crio program is designed to help you build and master practical Software Development, QA Automation, and Data Analytics skills. Focusing on real-world scenarios and challenges, our programs ensure that you don’t just learn – you apply, build, and grow your abilities step-by-step.

Join our vibrant Alumni Network and embark on a journey that takes you from knowledge to experience, and from experience to expertise. At Crio, we’re not just teaching tech skills – we’re building careers

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