How can I optimize Java streams for better performance?

How can I optimize Java streams for better performance?

To optimize Java streams, consider using parallel streams for large datasets, minimizing intermediate operations, and using collectors efficiently.

What are the trade-offs of using parallel streams?

Parallel streams can improve performance but may introduce overhead and complexity. They are best for CPU-intensive tasks.

Can you give an example of using collectors with streams?

Sure! You can use Collectors.toList() to collect stream elements into a List. For example: List<String> result = stream.collect(Collectors.toList());.

What about using Optional with streams?

Using Optional with streams can help avoid NullPointerExceptions. You can use stream.filter(Optional::isPresent).map(Optional::get) to process optional values.