#streams

4 post(s)

Stream Gatherers:Custom Intermediate Ops Without Breaking the Pipeline

What Java Stream Gatherers are (JEP 485 / Java 24), why map/filter/flatMap hit a wall, built-ins like windowFixed and fold, and how to write a short custom gatherer.

Java

Java Streams Advanced:Collectors, Short-Circuiting, and Pitfalls That Bite in Production

Go beyond map/filter/collect: groupingBy, teeing, takeWhile/dropWhile, short-circuit order, primitive streams, parallel pitfalls, and Stream best practices for production Java.

Java

Java Streams:Filter, Map, and Collect Without the Nested Loop Soup

A beginner-to-intermediate guide to Java Streams: source → filter/map/flatMap → collect, lazy pipelines, and when a plain for loop is clearer.

Java

Spliterator and Collectors:Split a Collection and Put It Back Together

Use Collection.stream, parallelStream, spliterator characteristics, and Collectors.toCollection to leave a collection and land in the right one — without re-teaching Stream.map.