|
|
|
|
+++
|
|
|
|
|
title = "Modern Java in Action - Raoul-Gabriel Urma"
|
|
|
|
|
date = 2019-02-08
|
|
|
|
|
|
|
|
|
|
[taxonomies]
|
|
|
|
|
tags = ["books", "reviews", "java", "java 8", "java 9", "raoul-gabriel urma",
|
|
|
|
|
"it", "2 stars"]
|
|
|
|
|
+++
|
|
|
|
|
|
|
|
|
|
[GoodReads Summary](https://www.goodreads.com/book/show/46213396-modern-java-in-action):
|
|
|
|
|
Java 8 Lambdas in Action is a clearly-written guide to Java 8 lambdas and
|
|
|
|
|
functional programming in Java. It begins with a practical introduction to the
|
|
|
|
|
structure and benefits of lambda expressions in real-world Java code. The book
|
|
|
|
|
then introduces the Stream API and shows how it can make collections-related
|
|
|
|
|
code radically easier to understand and maintain. Along the way, you'll
|
|
|
|
|
discover new FP-oriented design patterns with Java 8 for code reuse, code
|
|
|
|
|
readability, exception handling, data manipulation, and concurrency. For
|
|
|
|
|
developers also exploring other functional languages on the JVM, the book
|
|
|
|
|
concludes with a quick survey of useful functional features in Scala and
|
|
|
|
|
Clojure.
|
|
|
|
|
|
|
|
|
|
<!-- more -->
|
|
|
|
|
|
|
|
|
|
{{ stars(stars=2) }}
|
|
|
|
|
|
|
|
|
|
To be short: It's a good book, but it is extremely (and unnecessary) verbose.
|
|
|
|
|
|
|
|
|
|
It covers the new stuff on Java 8 (like streams and lambdas) and some of Java 9
|
|
|
|
|
(like the Flow/reactive interface). It does a good job on Streams and Lambdas,
|
|
|
|
|
but seems to fall a bit short on the reactive interface, maybe 'cause it's just
|
|
|
|
|
an interface, although I found the examples a little bit missing in some
|
|
|
|
|
points, like showing the Three interfaces, Subscriber, Subscription and
|
|
|
|
|
Publisher, but showing examples without the Publisher. A bit worse (IMHO), is
|
|
|
|
|
that, in order to produce an example, instead of publishing some data, it shows
|
|
|
|
|
a generic publisher of sequential numbers, in which it calls the real
|
|
|
|
|
publisher.
|
|
|
|
|
|
|
|
|
|
Also, the authors seem a bit too enthusiastic about lambdas. Even when the code
|
|
|
|
|
becomes less readable -- specially in the Flow examples -- they still use
|
|
|
|
|
lambdas. They are so into it that the example of a `for` being converted to a
|
|
|
|
|
stream is shown at least 4 times.
|
|
|
|
|
|
|
|
|
|
There are too many "as follows"; there are too many "in the next section" just
|
|
|
|
|
before the next section; there is too much repetition that shouldn't be there.
|
|
|
|
|
|
|
|
|
|
Again, the content is good, but the text is terrible.
|
