This post originated from an RSS feed registered with Java Buzz by justin cater. Original Post: Grouping, sampling and batching – custom collectors in Java 8 Feed Title: Java Code Geeks Feed URL: http://feeds.feedburner.com/JavaCodeGeeks Feed Description: Java 2 Java Developers Resource Center Latest Java Buzz Posts Latest Java Buzz Posts by justin cater Latest Posts From Java Code Geeks

Continuing first article, this time we will write some more useful custom collectors: for grouping by given criteria, sampling input, batching and sliding over with fixed size window. Grouping (counting occurrences, histogram) Imagine you have a collection of some items and you want to calculate how many times each item (with respect toequals()) appears in this […]