Understanding Intermediate and Terminal Operations in Java 8 Streams

Java 8 introduced the Stream API, which allows developers to process collections of objects in a functional and declarative way. The Stream API operations are divided into two categories: intermediate operations and terminal operations. In this article, we’ll explore both types, their key characteristics, and how to use them with practical examples.

Understanding Intermediate and Terminal Operations in Java 8 Streams

Table of Contents

What are Java Streams?

Intermediate Operations

filter() ,map(),sorted(),distinct() ,limit()

Terminal Operations

collect() ,forEach() ,reduce() ,count() ,findFirst() ,anyMatch()

Key Differences Between Intermediate and Terminal Operations

Practical Examples

Conclusion

What are Java Streams?

Java Streams are a sequence of elements that can be processed in a functional style. They allow developers to perform operations like filtering, mapping, and reducing data in a declarative way. Streams are designed to be lazy, meaning they only execute the operations when required, which makes them efficient.