Functional Java

Pragmatic Bookshelf

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

Manning Publications

Modern Java in Action: Lambdas, streams, functional and reactive programming

Thoughtflow Solutions, Inc.

Functional Java: A Guide to Lambdas and Functional Programming in Java 8

O'Reilly Media

Learning Java: An Introduction to Real-World Programming with Java

Addison Wesley

Scala for the Impatient                          

Manning

Functional Programming in Java: How functional techniques improve your Java programs (English Edition)

Independently Published

Java Functional Programming - Lambda & Stream Practice Tests: 180+ questions on Inner classes, Lambda expressions, Method References, Functional Interfaces & Stream API

WILEY INDIA

Java 8 In Action: Lambdas Streams And Functional Style Programming

Packt Publishing

Learning Java Functional Programming (English Edition)

Java 8 Functional Programming(Chinese Edition)