Java Functional Programming

8.5

9.0

Javaslang

7.7

0.0

Functional Java

7.0

6.3

StreamEx

6.8

3.4

jOOλ

6.2

0.0

cyclops-react

5.4

3.4

13 Functional Programming libraries and projects

Javaslang

8.5 9.0 L3 Java

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.
Functional Java

7.7 0.0 L5 Java

Backport of Java 8's lambda expressions to Java 7, 6 and 5

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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

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StreamEx

7.0 6.3 L3 Java

Enhancing Java Stream API
jOOλ

6.8 3.4 L2 Java

jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functionality around sequential Streams. The JDK 8's main efforts (default methods, lambdas, and the Stream API) were focused around maintaining backwards compatibility and implementing a functional API for parallelism.
cyclops-react

6.2 0.0 L3 Java

An advanced, but easy to use, platform for writing functional applications in Java 8.
λ

5.4 3.4 Java

Functional patterns for Java
derive4j

4.6 0.0 L4 Java

Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, folds, optics and typeclasses.
underscore-java

4.5 8.7 L1 Java

java port of Underscore.js
protonpack

4.3 0.0 L5 Java

Stream utilities for Java 8
Faux Pas

2.9 1.7 L5 Java

A library that simplifies error handling for Functional Programming in Java
Fugue

2.7 -

Functional extensions to Guava.
Packrat

1.7 8.6 Java

Gatherers library for Java Stream API
Vavr

-

Functional component library that provides persistent data types and functional control structures.

* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.

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