What are the differences between parallel streams and sequential streams?

What are the differences between parallel streams and sequential streams?

Parallel streams process elements concurrently, while sequential streams process them one at a time. This can lead to performance improvements with parallel streams, especially for large datasets.

Can you give me an example of when to use parallel streams?

Sure! Use parallel streams when you're dealing with large collections and the operations on the elements are independent, like filtering or mapping.

Are there any downsides to using parallel streams?

Yes, parallel streams can introduce overhead due to thread management and may not always lead to performance gains, especially for small datasets.

How do I convert a sequential stream to a parallel stream in Java?

You can convert a sequential stream to a parallel stream in Java by calling the parallelStream() method on a collection or by using the parallel() method on an existing stream.