Architect's Tech Stack

Aug 31, 2020 · Backend Development

Using Java 8 Streams for List‑to‑Map, Grouping, Filtering, Summing, and Deduplication

This tutorial shows how to use Java 8 Stream API to convert a List of objects into a Map, group elements by a key, filter by condition, calculate aggregates such as sum, find max/min values, and remove duplicates, all with concise functional code.