Article
Java is an object-oriented language, imperative in its essence (contrasting with the declarative practice that is functional programming). Nonetheless, it was possible to apply functional principles to Java programs prior to version 8, however it required additional work to bypass the innate structure of the language and resulted in convoluted...
Cansın Güler
A stream represents a sequence of elements and supports different kinds of operations that lead to the desired result. The source of a stream is usually a Collection or an Array, from which data is streamed from. Streams differ from collections in several ways; most notably in that the streams...
Branko Ilic
Mapping elements from one collection to another, applying a transformative function between them is a fairly common and very powerful operation. Java's functional API supports both map() and flatMap(). If you'd like to read more about map(), read our Java 8 - Stream.map() Examples! The flatMap() operation is similar...
Hiram Kamau
Today, the Java Streams API is in extensive use, making Java more functional than ever. Thus, models like MapReduce have emerged for easier stream handling. Although these models made using streams effortless, they've also introduced efficiency concerns. The built-in parallel() operation is simple enough to deploy, and allows you to...
The Predicate interface was introduced in Java 8 as a part of the java.util.function package. The release of version 8 marks the point at which Java adopted ample support for functional programming practices distending to include various new features, including lambda expressions, default methods, and predefined functional interfaces...
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