Saturday, May 19, 2018

Java 8 filter + map + collect + Stream Example

Hello guys, many of my readers emailed me to write a post about map and filter function of Java 8 because they found it difficult to understand and use. Even though I have previously blogged about both map() and filter(), I am writing this post again to explain the concept in more layman's language for better understanding of my readers and fellow Java developers.

The map() function is a method in Stream class which represent a functional programming concept. In simple words, the map() is used to transform one object into other by applying a function.