14. Multithreading and Concurrency
Multithreading and concurrency are key concepts for developing applications that perform multiple tasks simultaneously. This chapter covers the basics of thread management, life cycles, synchronization, and inter-thread communication, alongside best practices for utilizing concurrency in programming. Understanding these principles is essential for robust application development, especially in modern multi-core environments.
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What we have learnt
- Threads are the smallest unit of execution within a process, allowing for concurrent task execution.
- Thread synchronization is crucial in a multi-threaded environment to prevent data inconsistencies.
- Java provides several utilities for managing concurrency effectively, including thread pools and atomic variables.
Key Concepts
- -- Thread
- The smallest unit of execution in a process that can run independently while sharing the same memory space.
- -- Synchronization
- The process of controlling access to shared resources by multiple threads to prevent data inconsistency.
- -- Concurrency
- The ability of an application to manage multiple tasks simultaneously, often via context switching.
- -- Parallelism
- The simultaneous execution of multiple tasks on different CPU cores.
- -- ExecutorService
- A higher-level API for managing threads and task execution in Java, allowing for better resource management.
- -- Deadlock
- A situation in which two or more threads are blocked forever, each waiting for the other to release a lock.
- -- Atomic Variables
- Variables that provide lock-free thread-safe operations, essential for maintaining data integrity in concurrent programming.
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