What are the characteristics of multi-threading in Java?
Some characteristics of Java threading include:
- Concurrency: Multiple threads can be executed simultaneously, enhancing the program’s concurrency and parallelism, allowing the program to more efficiently utilize computing resources.
- Sharedness: multiple threads can share the same memory space, allowing communication and coordination through shared data.
- Asynchrony: Multiple threads can execute different tasks simultaneously without needing to wait for the completion of one task before starting the next.
- Visibility: Java’s multithreading provides mechanisms to ensure that changes to shared data made by one thread are visible to other threads.
- Randomness: the order of execution of multiple threads is unpredictable and determined by system scheduling, and can be influenced by setting priorities and other methods.
- Deadlock: When multiple threads are waiting for each other to release locks and cannot continue executing, a deadlock occurs, causing the program to be unable to proceed.
- Thread synchronization: multiple threads may access and modify shared data simultaneously, requiring the use of synchronization mechanisms to ensure the consistency and correctness of the data.
- Thread safety: Java offers various thread-safe data structures and classes that can be safely used in multi-threaded environments, preventing issues such as data race and thread conflicts.
