What are parallel streams in Java's Stream API?

What are parallel streams in Java's Stream API?

Parallel streams allow you to process collections in parallel, utilizing multiple threads for better performance.

How do I create a parallel stream from a list?

You can create a parallel stream by calling the parallelStream() method on a collection, like this: list.parallelStream().

What are the benefits of using parallel streams?

The main benefits include improved performance for large datasets and easier code for concurrent processing.

Are there any downsides to using parallel streams?

Yes, downsides include potential overhead from thread management and not all tasks benefit from parallel execution.