abhinav-nath/java-multithreading-and-concurrency

All about Multi-threading and Concurrent programming in Java. Simple and easy to understand code examples for most of the Concurrent APIs provided by Java.

Multithreading and Concurrency in Java

All about Multi-threading and Concurrent programming in Java. Simple and easy to understand code examples for most of the Concurrent APIs provided by Java.

Topics

All about Threads

• Motivation - Why do we need Threads?
• Threads in Java
  • Creating Threads using:
    • Runnable
    • Thread class
    • Callable
    • ExecutorService - [code]
  • Thread States - [code]
  • Thread Termination
  • Joining Threads
• Thread Signalling
• Daemon Threads - [code]

Performance in Multithreading

• Latency
  • How many subtasks/threads to break the original task into?
    • Hyper-threading
  • Inherent cost of Parallelization and Aggregation
  • Can we always break any task into multiple subtasks?
• Throughput

Thread synchronization and locks

• The synchronized keyword
• Locks
• Deadlock

Concurrent APIs provided by Java

• BlockingQueue
• Semaphore - [code]
• CountdownLatch - [code]
  • with time-out
• CyclicBarrier - [code]
  • Need of CyclicBarrier
• atomic variables
• The volatile keyword - [code]

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