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Java Multithreading

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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

Thready Safety & Synchronized Wait & Notify Interrupting Threads Volatile Reentrant Locks & Condition Variables Missed Signals Semaphore in Java Spurious Wakeups

Java Memory Model

Java Memory Model Reordering Effects The happens-before Relationship

Java Thread Basics

Setting-up Threads

Basic Thread Handling

Executor Framework

Executor Implementations

Types of Thread Pools

An Example: Timer vs ScheduledThreadPool

Callable Interface

Future Interface

CompletionService Interface

Concurrent Collections

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Types of Thread Pools

Types of Thread Pools

This lesson details the different types of thread pools available in the Java class library.

Java has preconfigured thread pool implementations that can be instantiated using the factory methods of the Executors class. The important ones are listed below:

newFixedThreadPool: This type of pool has a fixed number of threads and any number of tasks can be submitted for execution. Once a thead finishes a task, it can reused to execute another task from the queue.
newSingleThreadExecutor: This executor uses a single worker ...