What are some advanced techniques for using Java Collections?

What are some advanced techniques for using Java Collections?

Advanced techniques in Java Collections include using streams for processing, custom comparators, and concurrent collections.

Can you explain how to use streams with collections?

Sure! Streams allow you to process collections in a functional style, enabling operations like filtering, mapping, and reducing.

What is a custom comparator and when should I use one?

A custom comparator is a way to define your own sorting logic for collections. Use it when the default ordering doesn't meet your needs.

How do concurrent collections differ from regular collections?

Concurrent collections are designed for multi-threaded environments, providing thread-safe operations without external synchronization.

Can you give an example of using a concurrent collection?

Certainly! An example is using ConcurrentHashMap for a thread-safe map that allows concurrent read and write operations.