book

Functional Programming for Java Developers

by Dean Wampler

July 2011

Intermediate to advanced

90 pages

2h 19m

English

O'Reilly Media, Inc.

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Welcome to Functional Programming for Java DevelopersConventions Used in This BookUsing the Code ExamplesGetting the Code ExamplesSafari® Books OnlineHow to Contact UsAcknowledgments
I Have to Be Good at Writing Concurrent ProgramsMost Programs Are Just Data Management ProblemsFunctional Programming Is More ModularI Have to Work Faster and FasterFunctional Programming Is a Return to Simplicity
The Basic Principles of Functional ProgrammingAvoiding Mutable StateFunctions as First-Class ValuesLambdas and ClosuresHigher-Order FunctionsSide-Effect-Free FunctionsRecursionLazy vs. Eager EvaluationDeclarative vs. Imperative ProgrammingDesigning TypesWhat About Nulls?Algebraic Data Types and Abstract Data TypesExercises
ListsMapsCombinator Functions: The Collection Power ToolsPersistent Data StructuresSome Final Thoughts on Data Structures and AlgorithmsExercises
The Actor ModelSoftware Transactional MemoryExercises
Imperative, Mutable CodeThe Liskov Substitution PrincipleMore on Design PatternsPattern MatchingWhat Makes a Good Type?Rethinking Object-Oriented MiddlewareExercises
Functional Tools for JavaA RecapExercises

Overview

Software development today is embracing functional programming (FP), whether it’s to write concurrent programs or to manage Big Data. Where does that leave Java developers? This concise book offers a pragmatic, approachable introduction to FP for Java developers or anyone who uses an object-oriented language. Using exercises in each chapter, you'll learn how to apply FP principles to your Java code.