What are some examples of thread-safe collections in programming?

What are some examples of thread-safe collections in programming?

Thread-safe collections are data structures that can be safely accessed by multiple threads simultaneously. Examples include:

1. ConcurrentHashMap in Java
2. CopyOnWriteArrayList in Java
3. BlockingQueue in Java
4. ConcurrentBag in C#. Would you like to know more about any specific collection?

Can you explain how ConcurrentHashMap works?

Certainly! ConcurrentHashMap allows concurrent access by dividing the map into segments. Each segment can be locked independently, allowing multiple threads to read and write without blocking each other. This improves performance in multi-threaded environments. Would you like to see a code example?

Yes, please provide a code example for ConcurrentHashMap.

Here's a simple example in Java:

import java.util.concurrent.ConcurrentHashMap;

public class Example {
    public static void main(String[] args) {
        ConcurrentHashMap<String, Integer> map = new ConcurrentHashMap<>();
        map.put("A", 1);
        map.put("B", 2);

        // Accessing the map concurrently
        map.forEach(1, (key, value) -> System.out.println(key + " : " + value));
    }
}

This code initializes a ConcurrentHashMap and prints its contents concurrently. Let me know if you have more questions!