Answer Posted / anand mandal
Java provides several APIs and classes to support multithreading:
1. `java.lang.Thread`: This class is at the core of Java's multithreading support and is used to create and manage threads.
2. `java.lang.Runnable`: The `Runnable` interface allows you to define the code that a thread will execute, providing a more flexible way to implement multithreading.
3. `java.util.concurrent`: This package contains classes and interfaces for high-level concurrency control, such as the `Executor` framework, concurrent collections, and thread pools.
4. `java.util.concurrent.atomic`: It provides atomic variables for thread-safe operations on single variables without the need for explicit synchronization.
5. `java.util.concurrent.locks`: This package contains more advanced locking mechanisms like ReentrantLock and ReadWriteLock, allowing for more fine-grained control over thread synchronization.
6. `java.util.concurrent.Future`: The `Future` interface represents the result of an asynchronous computation and is commonly used for managing asynchronous tasks.
These APIs and classes enable effective multithreading in Java, helping developers write concurrent and efficient programs.
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