Stream

A pipeline for processing a sequence of values without storing the values itself.

What is Stream in Java?

Stream — A pipeline for processing a sequence of values without storing the values itself.

import java.util.List;

class NameFilter {
    List<String> shortNames(List<String> names) {
        return names.stream()
                .filter(name -> name.length() < 5)
                .map(String::toUpperCase)
                .toList();
    }
}

Level: Freelancer · More Java terms at this level

Updated September 27, 2026