Java Functional Programming

12 Functional Programming libraries and projects

• Javaslang

  8.3 5.6 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

  7.9 0.7 L5 Java

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

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• jOOλ

  6.8 0.2 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.
  

• StreamEx

  6.7 2.5 L3 Java

  Enhancing Java Stream API

• cyclops-react

  6.1 0.0 L3 Java

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

• λ

  5.1 3.7 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.
  

• protonpack

  4.4 0.0 L5 Java

  Stream utilities for Java 8

• underscore-java

  4.1 8.2 L1 Java

  java port of Underscore.js

• Faux Pas

  2.8 7.1 L5 Java

  A library that simplifies error handling for Functional Programming in Java
  

• Fugue

  2.7 -

  Functional extensions to Guava.

• 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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Popular Comparisons

• Javaslang
  vs
  Functional Java
• Vavr
  vs
  cyclops-react
• Javaslang
  vs
  jOOλ
• Vavr
  vs
  jOOλ
• Javaslang
  vs
  cyclops-react

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