Java Streams Explained – map, filter, reduce
Learn Java Stream API step-by-step in this video. We cover the most important Java 8 features including Functional Interfaces, Lambda Expressions, Method References, and Stream operations with clear explanations and practical examples.
This tutorial is perfect for:
✔ Java beginners
✔ Java 8+ learners
✔ Interview preparation
✔ Backend & Spring Boot developers
🔥 Topics Covered:
What is Java Stream API
Functional Interface in Java
Lambda Expressions explained with examples
Method References (::) in Java
Stream operations: map(), filter(), reduce(), collect()
Real-world use cases of Streams
Timeline:
00:31 What is Function Interface?
05:35 Lambda Expression with example
10:59 Functional Interfaces used in java stream (Predicate, Function, Consumer, Supplier, UnaryOperator, BinaryOperator )
33:35 What is Java Stream and operations with example
46:22 Real Time use case of Java Stream in Selenium WebDriver
📌 Why Streams?
Streams make Java code cleaner, functional, and more readable.
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