Top 11 Java Collection Projects

• Eclipse Collections

  9 2,364 8.0 Java

  Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

  

Project mention: Yet another introduction to Functional Programming | dev.to | 2023-07-12

eclipse-collections for Java.

• StreamEx

  2 2,148 6.4 Java

  Enhancing Java Stream API

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• cyclops-react

  2 1,296 0.0 Java

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

  

• glazedlists

  1 163 10.0 Java

  Open Source List Transformations for Java

  

• dictomaton

  2 129 1.8 Java

  Finite state dictionaries in Java

Project mention: Calculate the difference and intersection of any two regexes | news.ycombinator.com | 2023-09-11

Say you want to compute all strings of length 5 that the automaton can generate. Conceptually the nicest way is to create an automaton that matches any five characters and then compute the intersection between that automaton and the regex automaton. Then you can generate all the strings in the intersection automaton. Of course, IRL, you wouldn't actually generate the intersection (you can easily do this on the fly), but you get the idea.

Automata are really a lost art in modern natural language processing. We used to do things like store a large vocabulary in an deterministic acyclic minimized automaton (nice and compact, so-called dictionary automaton). And then to find, say all words within Levenshtein distance 2 of hacker, create a Levenshtein automaton for hacker and then compute (on the fly) the intersection between the Levenshtein automaton and the dictionary automaton. The language of the automaton is then all words within the intersection automaton.

I wrote a Java package a decade ago that implements some of this stuff:

https://github.com/danieldk/dictomaton

• Miniboxing

  0 120 0.0 Java

  Miniboxing is a program transformation that improves the performance of Scala generics when used with primitive types. It can speed up generic collections by factors between 1.5x and 22x, while maintaining bytecode duplication to a minimum. You can easily add miniboxing to your sbt project:

  

• NeverTooManyBooks

  4 65 9.9 Java

  A book collection app for Android

Project mention: NeverTooManyBooks – Android App for Managing Your Books Library | news.ycombinator.com | 2023-08-11

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

• java-immutable-collections

  2 41 8.3 Java

  Efficient Immutable/Persistent Collections for Java

• Primitive-Collections

  1 37 6.3 Java

  A Primitive Collection library that reduces memory usage and improves performance and provides a lot of QoL

• ExtraCollections

  1 6 5.3 Java

  Extra useful collection types and utilities

• io-util

  2 0 3.8 Java

  Utility modules, a no-dep JSON module, and a fixed-width external (disk) table module.

  

Project mention: Java opensource projects that need help from community. | /r/java | 2023-05-20

Elias Fano encoding improvements for compressed offset files, if you want to get down and dirty https://github.com/crums-io/io-util/blob/master/io-xp/src/main/java/io/crums/io/sef/package-info.java

Java Collections related posts

• Eclipse Collections for Java

  1 project | news.ycombinator.com | 23 Dec 2022

• Eclipse Collections for Java

  1 project | news.ycombinator.com | 23 Dec 2022

• Is there a library with observable properties similar to the JavaFX ones?

  4 projects | /r/java | 8 Nov 2022

• New candidate JEP: 431: Sequenced Collections

  2 projects | /r/java | 12 Oct 2022

• what is the best persistent collection library?

  5 projects | /r/java | 2 Sep 2022

• Java Bad!

  1 project | /r/ProgrammerHumor | 23 Oct 2021

• Vavr | Λrrow . . . Complementary or redundant? (Note: This is a multi-part question.)

  3 projects | /r/Kotlin | 26 Apr 2021
• A note from our sponsor - InfluxDB
  www.influxdata.com | 10 May 2024

  Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality. Learn more →

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