"A Functional Approach to Java: Augmenting Object-Oriented Java Code with Functional Principles" by Ben Weidig is a textbook published by O'Reilly Media, Incorporated in 2023. The book offers a practical approach to programming in Java, focusing on combining functional design with object-oriented principles. With 411 pages, this trade paperback is a valuable resource for software developers looking to enhance their skills in programming languages such as Java. Written in English and originating from the United States, this book is a must-have for those interested in exploring the intersection of functional programming and Java.