The CopyOnWriteArraySet class in Java is part of the java.util.concurrent package and is designed to handle concurrent operations. This set is optimized for situations where read operations are more frequent than write operations. Each write operation, such as adding or removing an element, creates a new copy of the underlying array, ensuring thread safety without the need for explicit synchronization.
This guide covers the various methods available in the CopyOnWriteArraySet class. Each method is described in simple terms to help beginners understand how to use them. These methods allow you to perform operations like adding, removing, and accessing elements in a thread-safe manner.
For more detailed information, please refer to the official Java SE Documentation and additional resources on Java Collections Tutorial. Also, check out this comprehensive CopyOnWriteArraySet Tutorial for more examples and usage scenarios.
Java CopyOnWriteArraySet Class Methods
The table below contains various methods of the Java CopyOnWriteArraySet class, each with a link to a detailed explanation, examples, and real-world uses. Click on the method names to learn more about how to use them effectively in your applications.
| Method | Description |
|---|---|
| add() | Adds the specified element to the set if it is not already present. |
| remove() | Removes the specified element from the set if it is present. |
| contains() | Returns true if the set contains the specified element. |
| size() | Returns the number of elements in the set. |
| isEmpty() | Returns true if the set contains no elements. |
| clear() | Removes all elements from the set. |
| iterator() | Returns an iterator over the elements in the set. |
| toArray() | Returns an array containing all of the elements in the set. |
| addAll() | Adds all of the elements in the specified collection to the set. |
| containsAll() | Returns true if the set contains all of the elements in the specified collection. |
| removeAll() | Removes from the set all of its elements that are contained in the specified collection. |
| retainAll() | Retains only the elements in the set that are contained in the specified collection. |
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