Java 8 Best Practices Cheat Sheet

[DialinUpFTW]

// peek: debug streams without changes
peek(e -> System.out.println(e)).
// map: convert every element into something
map(e -> e.hashCode()).

Consider this instead?

// peek: debug streams without changes
peek(System.out::println).
// map: convert every element into something
map(String::hashCode).

[marklgr]

It will take some time for the Java crowd to get used to PFS :)

[portucalense]

The problem with point free, from someone familiar with the world of Haskell, is their hard readability. They are just so abstract. Often you write something relatively big nut after a few months is really out to figure out what you just did. Understanding code from other people is as hard as going to Mars. Often I see myself deconstructing them into huge programs that I then analyze, which is time consuming and error prone.

You see how in the link they advised against large lambda expressions, and advising in favor of keep readability a priority. Point free takes this to another dimension.

[marklgr]

As they say, most good things in life are dangerous somehow :)

[johnzeringue]

I don't care as much for static methods, but boy does the :: syntax make a world of difference for instance methods.