Functional Java

ThoughtFlow Solutions inc.

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

Java Functional Programming: Hands-On (Complete Java course : from ZERO to professional) (English Edition)

Pragmatic Bookshelf

Functional Programming in Java: Harness the Power of Streams and Lambda Expressions (English Edition)

O'Reilly Media

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

O'Reilly Media

Functional Programming for Java Developers      

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

Manning Publications

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

ThoughtFlow Solutions Inc.

Functional Java: A Guide to Lambdas and Functional Programming in Java 8 by Nick Maiorano (2014-05-08)

Independently published

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

Manning Publications

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