Functional Java Concepts

Description

This repository explores functional programming concepts in Java 8/9.

Topics Covered

Beginner:

• Lambda expressions
• Functional interfaces
• Stream API
• Optional class
• Method references
• Functional programming idioms (map, filter, reduce)
• Error handling in functional style

Intermediate:

• Collectors
• Default methods in interfaces
• Higher-order functions
• Immutability and immutability techniques
• Pure functions
• Lazy evaluation
• Memoization

Advanced:

• Parallel streams
• Recursion
• Monads and monadic operations (Optional, CompletableFuture)
• Functional composition
• Currying and partial application
• Functional design patterns
• Reactive programming with Java (using libraries like Reactor or RxJava)