What are some examples of collectors in Java Streams API?

Can you explain what collectors are in the Java Streams API?

Sure! Collectors in the Java Streams API are used to accumulate elements from a stream into a collection, like a List or a Set.

Can you give me some examples of how to use collectors?

Absolutely! For instance, you can use Collectors.toList() to collect elements into a List, or Collectors.toSet() to collect them into a Set.

What about grouping elements? How can I do that?

You can use Collectors.groupingBy() to group elements by a classifier function. For example, grouping a list of people by their age.

Are there any other useful collectors I should know about?

Yes! There are several, like Collectors.joining() to concatenate strings, and Collectors.partitioningBy() to partition elements into two groups.