October 2015
Beginner to intermediate
296 pages
5h 56m
English
Content preview from Learning Java Functional ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2. Putting the Function in Functional Programming
In the first chapter, the basic concept of functions and how they are supported by lambda expressions in Java 8 were introduced. In this chapter, we will cover lambda expressions in more depth. We will explain how they satisfy the mathematical definition of a function and how we can use them in supporting Java applications.
In this chapter, you will cover several topics, including:
- Lambda expression syntax and type inference
- High-order, pure, and first-class functions
- Referential transparency
- Closure and currying
- Common functional interfaces
Our discussions cover high-order functions, first-class functions, and pure functions. Also examined are the concepts of referential transparency, closure, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.