Java Functional

Pragmatic Bookshelf

Functional Programming in Java: Harness the Power of Streams and Lambda Expressions

O'Reilly UK Ltd.

Functional Programming in Java: Harnessing the Power of Java 8 Lambda Expressions

O'Reilly

A Functional Approach to Java: Augmenting Object-Oriented Java Code with Functional Principles

ThoughtFlow Solutions inc.

Functional Java: A Guide to Lambdas and Functional Programming in Java 8 (English Edition)

O'Reilly

Java 8 Lambdas                                  

Java Functional Programming :Play with Stream and Lambda with industry best practices (Java programming :from ZERO to HERO) (English Edition)

Independently published

Functional Programming with Java: An In-Depth Exploration and Implementation Guide

Manning Publications

Functional Programming in Java: How functional techniques improve your Java programs

Manning Publications

Java 8 in Action: Lambdas, Streams, and functional-style programming

Functional Programming in JavaScript: Building Reliable, Reusable, and Scalable Applications with Functional Paradigms (English Edition)