July 2023
Intermediate to advanced
276 pages
6h 55m
English
Content preview from Functional Programming in Java, 2nd EditionBecome 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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Wrapping Up
We looked at a number of examples written in the imperative style and refactored them to the functional style. The first step in that journey is to think declaratively and then look for functions to realize the series of transformations into the functional style. Once you get a handle on the steps to take, look for functions (in the JDK) that you can delegate those steps to. Sometimes we’ll have to step back and rethink the algorithm before refactoring code to the functional style. With practice, you’ll get better and more comfortable and be on your way to reducing accidental complexity in legacy code.
In the next chapter we’ll discuss several ways to write better-quality functional style code.
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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.