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Learning Java Functional Programming

Learning Java Functional Programming

By : Richard M Reese, Richard M. Reese
3 (1)
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Learning Java Functional Programming

Learning Java Functional Programming

3 (1)
By: Richard M Reese, Richard M. Reese

Overview of this book

Functional programming is an increasingly popular technology that allows you to simplify many tasks that are often cumbersome and awkward using an object-oriented approach. It is important to understand this approach and know how and when to apply it. Functional programming requires a different mindset, but once mastered it can be very rewarding. This book simplifies the learning process as a problem is described followed by its implementation using an object-oriented approach and then a solution is provided using appropriate functional programming techniques. Writing succinct and maintainable code is facilitated by many functional programming techniques including lambda expressions and streams. In this book, you will see numerous examples of how these techniques can be applied starting with an introduction to lambda expressions. Next, you will see how they can replace older approaches and be combined to achieve surprisingly elegant solutions to problems. This is followed by the investigation of related concepts such as the Optional class and monads, which offer an additional approach to handle problems. Design patterns have been instrumental in solving common problems. You will learn how these are enhanced with functional techniques. To transition from an object-oriented approach to a functional one, it is useful to have IDE support. IDE tools to refactor, debug, and test functional programs are demonstrated through the chapters. The end of the book brings together many of these functional programming techniques to create a more comprehensive application. You will find this book a very useful resource to learn and apply functional programming techniques in Java.
Table of Contents (11 chapters)
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10
Index

Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text are shown are follows: "As you may remember, the forEach method accepts a lambda expression which matches the Consumer interface's accept method."

A block of code is shown as follows:

list.forEach(new Consumer<String>() {
    @Override
    public void accept(String t) {
        System.out.println(t);
    }
 });

The output of code sequences is formatted as shown here:

Starting FPS Game
Generating FPS Image
Rendering FPS Image
Updating FPS Game

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "There is the text form as entered by the user such as: drop Axe."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.

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