Functional Programming in Java (for james tumino) by Subramaniam, Venkat -- Read -- Imperial Library of Trantor

Index

Functional Programming in Java For the Best Reading Experience... Table of Contents Foreword Praise for Functional Programming in Java Acknowledgments Preface

Who’s This Book For What’s in This Book Java Version Used in This Book How to Read the Code Examples Online Resources

Chapter 1: Hello, Lambda Expressions!

Change the Way You Think The Big Gains of Functional-Style Code Why Code in the Functional Style? Evolution, Not Revolution A Little Sugar to Sweeten Recap

Chapter 2: Using Collections

Iterating through a List Transforming a List Finding Elements Reusing Lambda Expressions Using Lexical Scoping and Closures Picking an Element Reducing a Collection to a Single Value Joining Elements Recap

Chapter 3: Strings, Comparators, and Filters

Iterating a String Implementing the Comparator Interface Multiple and Fluent Comparisons Using the collect Method and the Collectors Class Listing All Files in a Directory Listing Select Files in a Directory Listing Immediate Subdirectories Using flatMap Watching a File Change Recap

Chapter 4: Designing with Lambda Expressions

Separating Concerns Using Lambda Expressions Delegating Using Lambda Expressions Decorating Using Lambda Expressions A Peek into the default Methods Creating Fluent Interfaces Using Lambda Expressions Dealing with Exceptions Recap

Chapter 5: Working with Resources

Cleaning Up Resources Using Lambda Expressions to Clean Up Resources Managing Locks Creating Concise Exception Tests Recap

Chapter 6: Being Lazy

Delayed Initialization Lazy Evaluations Leveraging the Laziness of Streams Creating Infinite, Lazy Collections Recap

Chapter 7: Optimizing Recursions

Using Tail-Call Optimization Speeding Up with Memoization Recap

Chapter 8: Composing with Lambda Expressions

Using Function Composition Using MapReduce Taking a Leap to Parallelize Recap

Chapter 9: Bringing It All Together

Essential Practices to Succeed with the Functional Style Performance Concerns Adopting the Functional Style

Appendix 1: Starter Set of Functional Interfaces

Consumer < T > Supplier < T > Predicate < T > Function < T, R >

Appendix 2: Syntax Overview

Defining a Functional Interface Creating No-Parameter Lambda Expressions Creating a Single-Parameter Lambda Expression Inferring a Lambda Expression’s Parameter Type Dropping Parentheses for a Single-Parameter Inferred Type Creating a Multi-Parameter Lambda Expression Calling a Method with Mixed Parameters Storing a Lambda Expression Creating a Multiline Lambda Expression Returning a Lambda Expression Returning a Lambda Expression from a Lambda Expression Lexical Scoping in Closures Passing a Method Reference of an Instance Method Passing a Method Reference to a static Method Passing a Method Reference to a Method on Another Instance Passing a Reference of a Method That Takes Parameters Using a Constructor Reference Function Composition

Appendix 3: Web Resources Bibliography