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All LessonsFree Lessons (38)

The Basics

Introduction Program vs Process vs Thread Concurrency vs Parallelism Cooperative Multitasking vs Preemptive Multitasking Synchronous vs Asynchronous I/O Bound vs CPU Bound Throughput vs Latency Critical Sections & Race Conditions Deadlocks, Liveness & Reentrant Locks Mutex vs Semaphore Mutex vs Monitor Java's Monitor & Hoare vs Mesa Monitors Semaphore vs Monitor Amdahl's Law Moore's Law

Multithreading in Java

Atomic Assignments Thready Safety & Synchronized Wait & Notify Interrupting Threads Volatile Reentrant Locks & Condition Variables Missed Signals Semaphore in Java Spurious Wakeups Atomic Classes More on Atomics Non-blocking Synchronization Miscellaneous Topics

Java's Memory Model

Memory Model Reordering Effects The happens-before Relationship and Model

Interview Practice Problems

Blocking Queue | Bounded Buffer | Consumer Producer ... continued ... continued Rate Limiting Using Token Bucket Filter ... continued Thread Safe Deferred Callback Implementing Semaphore ReadWrite Lock Unisex Bathroom Problem Implementing a Barrier Uber Ride Problem Dining Philosophers Barber Shop Superman Problem ... continued Multithreaded Merge Sort Asynchronous to Synchronous Problem Nonblocking Stack Epilogue

Bonus Questions

Ordered Printing Printing Foo Bar n Times Printing Number Series (Zero, Even, Odd)Build a Molecule Fizz Buzz Problem

Beyond the Interview

Java Concurrency Reference

Setting-up Threads

Basic Thread Handling

Executor Framework

Executor Implementations

Types of Thread Pools

An Example: Timer vs ScheduledThreadPool

ThreadPoolExecutor

Callable Interface

Future Interface

CompletionService Interface

ThreadLocalRandom

Concurrent Collections

ConcurrentHashMap

ConcurrentModificationException

AtomicIntegerArray

AtomicIntegerFieldUpdater

AtomicLongArray

AtomicLongFieldUpdater

LongAccumulator

DoubleAccumulator

AtomicReference

AtomicReferenceArray

AtomicReferenceFieldUpdater

AtomicStampedReference

AtomicMarkableReference

IllegalMonitorStateException

TimeoutException

CancellationException

ExecutionException

RejectedExecutionException

CompletionException

BrokenBarrierException

Revision & Quizzes

Quiz 1 Quiz 2 Quiz 3 Quiz 4 Quiz 5 Quiz 6 Quiz 7 Quiz 8

Practice Mock Interview

Java Multithreading for Senior Engineering Interviews/

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CompletionException

CompletionException

Guide to understanding CompletionException

We'll cover the following...

Overview
Example

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Overview

The CompletionException extends from the RuntimeException and is thrown when a task hits an error or exception when executing.

The CompletionException ...