Java

Java was originally developed as an alternative to the C/C++ programming languages. It is now mainly used for building web, desktop, mobile, and embedded applications. Java is owned and licensed through Oracle, with free and open source implementations available from Oracle and other vendors.

GitHub: https://github.com/topics/java
Wikipedia: https://en.wikipedia.org/wiki/Java_(software_platform)
Created by: James Gosling
Released: May 23, 1995
Aliases: java-8, java8, java11, java-11, jvm, jdk, openjdk, javase, java-se,
Last updated: 2026-07-02 00:16:06 UTC
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https://github.com/open-hand/gitlab-service

Gitlab Service is responsible for establishing communication with GitLab, handling GitLab related logic and forwarding it to other services.

choerodon gitlab java spring spring-boot spring-cloud

Last synced: 10 Jul 2025

https://github.com/greenback-inc/greenback-java

Java library to build modern applications with high-def itemized financial data. OCR, AI, and NLP for receipts, invoices, bills, and RFC822 email messages.

accounting android bills email fintech groovy invoices java kotlin nlp-machine-learning ocr receipts rfc822 scala

Last synced: 12 Apr 2025

https://github.com/croz-ltd/nrich-demo-backend

Spring Boot application to showcase features of nrich libraries.

croz java jpa nrich spring-boot

Last synced: 12 Jul 2025

https://github.com/cyclopsmc/integratedrest

Expose Integrated Dynamics networks as a REST API

forge hacktoberfest java minecraft

Last synced: 09 Mar 2026

https://github.com/seunakintola/healthmonitor

HealthMonitor android app was built for a final year project that involves automatic monitoring of a patient's health, hereby bringing mobile inteligence to health system.

android diabetes diabetic-patients googlesheets healthcare-application healthmonitoring iot java mobile-app

Last synced: 20 Aug 2025

https://github.com/gaul/java-collection-overhead

Demonstrate overheads for various Java Collection implementations.

collection java

Last synced: 15 Apr 2025

https://github.com/shannah/webrtc-java-mobile

A Java/Kotlin WebRTC implementation for all mobile/desktop/web platforms.

android codenameone ios java kotlin webrtc

Last synced: 28 Aug 2025

https://github.com/scordio/jimfs-junit-jupiter

JUnit Jupiter `@TempDir` extension based on the in-memory file system Jimfs

hacktoberfest java jimfs junit-jupiter junit5-extension testing

Last synced: 10 Aug 2025

https://github.com/minimallycorrect/mixin

Applies Mixin-style monkey patches to .java source or compiled .class files. Lightweight

aspect-oriented-programming bytecode-manipulation java mixin

Last synced: 09 Mar 2026

https://github.com/ralscha/extdirectspring-demo

Sample applications for ExtDirectSpring

demo ext-direct extjs extjs6 java javascript spring spring-boot springframework

Last synced: 11 Aug 2025

https://github.com/barakugav/jgalgo

A high-performance library for graph algorithms written in Java. It contains a wide collection of optimized algorithms and data structures for a range of problems on graphs.

algorithms data-structures graph-algorithms graph-api graph-theory java java-library

Last synced: 15 Apr 2025

https://github.com/blackducksoftware/ohcount4j

Line counting and language identification tool

java line-counter ohcount ohloh ragel tool

Last synced: 29 Jun 2025

https://github.com/docker-client/docker-compose-v3

client compose docker docker-client docker-compose docker-stack docker-swarm-mode hacktoberfest java kotlin moby

Last synced: 08 Mar 2026

https://github.com/michel-leonard/ciede2000-color-matching

The 𝐂𝐈𝐄𝐃𝐄𝟐𝟎𝟎𝟎 color difference formula written in 40+ programming languages.

c color computer-vision dart education go image-processing java javascript kotlin ktm620enduro linux python ruby rust swift testing windows

Last synced: 18 Feb 2026

https://github.com/renatoaguimaraes/spring-reactive-kafka-sse

Stream with Spring Boot Reactive + Kafka + Server Sent Event + Cassandra.

cassandra html5 java javascript kafka reactive-programming reactive-spring-data spring-boot spring-reactive sse

Last synced: 31 Jul 2025

https://github.com/tanin47/javaparser.rs

[work-in-progress] Java parser written in Rust

java parser

Last synced: 15 Sep 2025

https://github.com/naotsugu/jpostal

Japan postal code dictionary(so‐called ken_all.csv) utility.

java

Last synced: 29 Jan 2026

https://github.com/erkaman/regl-fire

Fire particle system made with regl

animation demo fire glsl java javascript particles regl webgl

Last synced: 08 Mar 2026

https://github.com/beykery/willwallet

以太坊钱包

ethereum java mnemonic wallet

Last synced: 12 Jan 2026

https://github.com/tarantool/cartridge-springdata

Spring Data Tarantool

java spring tarantool

Last synced: 14 Apr 2025

https://github.com/suyashsonawane/javanet

Understanding and Implementing Neural Networks in Java from Scratch 💻 Learning the popular concept in the most 💪strongly typed language

java

Last synced: 22 Mar 2025

https://github.com/imagingbook/imagingbook-public

Image processing software for textbooks by W. Burger & M. Burge

burger-burge digital-image-processing imagej imagej-plugins imagingbook java

Last synced: 29 Oct 2025

https://github.com/a-r-d/java-1-class-demos

Java 160 class demos for Cincinnati State Java 1 class.

demo java youtube-video

Last synced: 28 Oct 2025

https://github.com/swathimystery/mesos-pinspider

A framework called "pinspider" on Apache mesos, to get basic user information from a pinterest page of a user.

distributed-computing java mesos mesos-pinspider mesosphere

Last synced: 11 Apr 2025

https://github.com/thefirstlineofcode/lithosphere

Lithosphere IoT Development Platform

arduino c cplusplus iot java lora plugin-architecture raspberry-pi webrtc xmpp xmpp-library xmpp-server

Last synced: 24 Oct 2025

https://github.com/lukehb/trajsuite

TrajSuite is a cross-platform Java application that provides a suite of trajectory data-mining and visualisation features.

algorithms classification clustering data-minig java opengl trajectory visualisation

Last synced: 04 May 2025

https://github.com/terl/hydride-java

Libhydrogen implemented in Java.

c cryptography encryption hash hashing java java-8 jna shared-library

Last synced: 30 Apr 2025

https://github.com/akarnokd/async-enumerable

Prototype Java 9 library based on the asynchronous enumerable concept (where moveNext() returns a task to compose over).

asynchronous enumerable java

Last synced: 11 Apr 2025

https://github.com/asadiahmad/plantsvszombies

Game with JavaFX framework for Advanced Programming Course

game java javafx javafx-application plants-vs-zombies plantsvszombies ui ui-design ux ux-design

Last synced: 28 Oct 2025

https://github.com/ivangfr/spring-kafka-de-serialization-types

The goal is to play with Spring Kafka. We've implemented 5 examples of producer and consumer services that exchanges messages through Kafka using different types of serialization and approaches.

avro docker java jib json kafka schema-registry spring-boot spring-kafka spring-web-mvc

Last synced: 10 Apr 2025

https://github.com/baijianruoli/lidou

RPC framework based on Zookeeper and Netty

java netty rpc zookeeper

Last synced: 14 Jan 2026

https://github.com/elandaofficial/venum

A simulated java-like associative-enum implementation.

associative cpp enum java macros map set venum

Last synced: 24 Jun 2025

https://github.com/bobbui/direct-file-downloader

A simple, fool-proof file downloader

downloader fool-proof internet java

Last synced: 09 Apr 2025

https://github.com/adonmo/killerbee

MQTT android client

android gradle iot java kotlin mqtt mqtt-android-client paho

Last synced: 14 Jul 2025

https://github.com/schroedermatt/spring-kafka-samples

Kafka Listener sample repository

confluent gradle java kafka mockschemaregistryclient spring-kafka

Last synced: 12 Apr 2025

https://github.com/jansanz/drivingdirsmapactivity

Driving Directions in MapActivity sample for Android

android java maps

Last synced: 19 Apr 2025

https://github.com/openfabr/cdf

OpenFABR Cloud Development Framework (CDF)

awscdk cdk8s cdktf cloud csharp custom devops golang iac infrastructure-as-code java modular pulumi python typescript

Last synced: 19 Apr 2025

https://github.com/ammarlodhi255/file-compression-system

File Compression Using Huffman Coding Built in Java.

data-structures huffman-coding huffman-compression-algorithm java

Last synced: 23 Apr 2025

https://github.com/sta-ger/slotify4j

A server-side video slot game logic framework for Java.

casino game game-server java return-to-player rtp simulation slot video-slot

Last synced: 10 Mar 2026

https://github.com/stevespringett/owasp-risk-rating-calculator

A Java library for programmatically calculating OWASP Risk Rating scores

java library owasp risk-assessment risk-scores threat-modeling

Last synced: 01 Jul 2025

https://github.com/zimei11/kingofbots

一个策略类AI的对战平台，平台上可以发布对战项目，每个同学可以实现自己的AI，然后支持AI与AI的PK与演示。

element-plus java mysql springboot vue3

Last synced: 21 Apr 2025

https://github.com/zhixiangli/gomoku-battle

Gomoku Battle is a cross-language cross-system battle platform.

agent ai ai-agents alpha-beta-pruning battle-platform five-in-row game gobang gomoku java javafx

Last synced: 16 Apr 2025

https://github.com/isapir/lucee-websocket

Enables server WebSockets for Lucee via JSR-356 compliant servlet containers (e.g. Tomcat 8, Jetty 9.1, etc.)

java lucee lucee-server websocket-server websockets

Last synced: 15 Apr 2025

https://github.com/hekate-io/hekate

Java Library for Distributed Services

cloud cluster discovery distributed java kubernetes messaging microservices scalability spring-boot

Last synced: 23 Apr 2025

https://github.com/dahie/imageflow

Visual ImageJ Macro editing in a node-base editor featuring ImageJ

imagej java node-based-ui

Last synced: 09 Sep 2025

https://github.com/jwkerr/quarters

The modern "apartment" plugin for Towny

earthmc folia folia-plugin folia-plugins folia-supported java minecraft paper papermc quarters towny townyapi

Last synced: 13 Apr 2025

https://github.com/martinwitt/laughing-train

A code refactoring tool for java created with jgit and spoon for small diffs.

java junit junit4 junit5 qodana refactoring-tools spoon

Last synced: 08 Apr 2025

https://github.com/quackster/roseau

Habbo Hotel emulator for the 2001 "v1" client revision.

2001 emulation emulator habbo java private-server server shockwave

Last synced: 01 Jul 2025

https://github.com/erzbir/numeron

基于 Mirai 框架的 QQ 机器人项目, 支持多 bot, 可作脚手架快速开发

annotations java kotlin mirai mirai-bot mirai-core qqbot reflect reflection springboot

Last synced: 12 Mar 2026

https://github.com/willfleury/prometheus-metrics-agent

JVM agent metrics instrumentation and monitoring with Prometheus (Scala, Java, Kotlin, Clojure, etc)

agent apm java jvm metrics monitoring prometheus

Last synced: 16 Oct 2025

https://github.com/zehracakir/collectionandmapinterfacejava

Collection and Map Interface

collection interface java map

Last synced: 18 Oct 2025

https://github.com/zdrzalikprzemyslaw/2020-credit-suisse-global-coding-challenge

A compilation of solutions to the nine questions from the GCC2020

c challenge contest cpp gcc gcc2020 global-coding-challenge java python solutions winner

Last synced: 14 Mar 2026

https://github.com/stevekung/indicatia

A small quality of life mod!

forge indicatia java lightweight minecraft qol utilities

Last synced: 09 Oct 2025

https://github.com/wojciechzankowski/iextrading4j-book

IEX Trading open source incremental Order Book implementation

deep feed hist iex iextrading java market-data order orderbook tops

Last synced: 10 Apr 2025

https://github.com/marcoscgdev/infoview

A simple and easy to use information view for Android.

android code info infoview java view views xml

Last synced: 12 Oct 2025

https://github.com/fgksgf/minesweeper

:bomb: 扫雷游戏

game java minesweeper swing-gui

Last synced: 11 Oct 2025

https://github.com/apache/uima-ruta

Apache UIMA Ruta

apache java ruta text-analysis uima

Last synced: 19 Oct 2025

https://github.com/smithros/kpi-stuff

Some of my laboratories work in KPI and stuff connected with it.

ada android asm bigdata computer-engineering cpp cs hadoop java kpi kpi-ua masm32 ntuu-kpi parrallel-computing python realtime-system security system-programming vhdl

Last synced: 28 Feb 2026

https://github.com/naotsugu/piecetable

Java implementation of PieceTable data structure.

algorithms java

Last synced: 06 Feb 2026

https://github.com/haxe4e/haxe-studio

Eclipse based IDE for the Haxe programming language

eclipse editor haxe ide java

Last synced: 01 Feb 2026

https://github.com/jgperrin/net.jgp.books.spark.ch09

Spark in Action, 2e - chapter 9 - Advanced ingestion: finding data sources and building your own

apache-spark ingestion java java8 manning spark sparkwithjava

Last synced: 04 Mar 2026

https://github.com/impetus/fabric-jdbc-connector

Fabric JDBC connector implements a pure java, type 4 JDBC driver that executes SQL queries on Hyperledger fabric Blockchain.

blockchain fabric go hyperledger java jdbc jdbc-driver sql

Last synced: 17 Mar 2026

https://github.com/kdubois/camelquarkusvoter

Demo that shows how to use Camel Quarkus with Quarkus Dev Services and Kafka

camel java kafka kubernetes microservices

Last synced: 05 Mar 2026

https://github.com/e-contract/enterprise-jsf

java jsf primefaces

Last synced: 17 Mar 2026

https://github.com/harium/etyl

A 2D Game Engine made in pure Java

2d android etyl game-engine java libgdx spriter

Last synced: 27 Feb 2026

https://github.com/biagiot/java-pec-parser

Libreria Java per l'elaborazione di messaggi di Posta Elettronica Certificata (e messaggi di posta ordinaria)

agid daticert email email-client email-parser eml java java-pec-parser legal-mail legalmail mail mail-client mail-parser pec pec-client posta postacert rfc-2821 rfc-6109 ricevute

Last synced: 30 Jan 2026

https://github.com/appulse-projects/encon-java

Java based Erlang Node Connector. https://appulse.io

elixir elixir-client elixir-examples elixir-lang elixir-language elixir-library erlang erlang-distribution erlang-driver erlang-libraries erlang-library erlang-node erlang-node-connector erlang-otp java java-library

Last synced: 04 Mar 2026

https://github.com/kumar-shivam-ranjan/retail-store-management-system

This Repository contains Java Spring MVC based relational Database Management System Project

java jdbc-connector mysql-database spring-mvc spring-security

Last synced: 13 Jun 2025

https://github.com/vinayalodha/elvis

Java Compiler plugin for Null safety

java null-safety

Last synced: 14 Jan 2026

https://github.com/shannah/radchatapp

Full-featured chat app UI component in Java/Kotlin for Codename One.

chat codenameone java kotlin mobile-application-development

Last synced: 23 Apr 2025

https://github.com/gturri/dokujclient

Java xmlrpc client for Dokuwiki

dokuwiki java xmlrpc-interface

Last synced: 14 Jul 2025

https://github.com/Erkaman/regl-fire

Fire particle system made with regl

animation demo fire glsl java javascript particles regl webgl

Last synced: 27 Jul 2025

https://github.com/apache/logging-chainsaw

Apache Chainsaw is a GUI log viewer

apache java logging

Last synced: 09 Apr 2025

https://github.com/masecla22/Modrinth4J

A fully-compliant Java wrapper for the Modrinth API

java modrinth wrapper

Last synced: 02 Apr 2025

https://github.com/zifangsky/easylimit

这是一个同时支持MVC和前后端分离项目开发模式的权限控制框架

authentication authorization front-end-framework java mvc-pattern permission-manager

Last synced: 14 Jan 2026

https://github.com/jeanthom/enigma

Jar reverse engineering tool

gradle jar java reverse-engineering

Last synced: 11 Aug 2025

https://github.com/hardiksinghbehl/just-another-testcontainer-integration

Backend application using Testcontainers for Integration Testing AWS S3, Azure Blob Storage, Kafka, MySQL, Egress calls including Chaos testing and Redis.

azurite chaos-testing java kafka-testing localstack mockserver mysql-test redis-test redpanda spring-boot testcontainers toxiproxy

Last synced: 09 Apr 2025

https://github.com/DogerRain/HelloCoder

本项目是使用 vuepress 构建的一个技术文档博客，收集了作者本人学习Java、面试的一些文章，多为系列文章。

java javalearn javalearning

Last synced: 02 Apr 2025

https://github.com/dropwizard/dropwizard-health

Provides a health check implementation that performs ongoing monitoring of an application's dependencies and includes an endpoint that can be called by a load balancer to determine if the application is healthy and thus able to receive traffic.

dropwizard health-check health-checks healthcheck java

Last synced: 29 May 2026

https://github.com/devops-utils/excel-to-pdf

An easy way to convert Excel 2003 and Excel 2007 to PDF by Java code based on Apache POI and itext7

excel excel-to-pdf excel2pdf itext itext7 java pdf poi

Last synced: 14 Jan 2026

https://github.com/kasukusakura/kimiroyli

Kimiroyli 是一个致力于 JVM 安全的安全管理框架, 致力于保护整个系统不受恶意外部代码攻击 (WIP)

java javaagent jvm security

Last synced: 26 Apr 2025

https://github.com/rudderlabs/rudder-sdk-android

Android SDK for RudderStack - the Customer Data Platform for Developers.

analytics analytics-platform android android-library android-sdk java kotlin open-source rudder sdk

Last synced: 25 Apr 2025

https://github.com/ivkos/wallhaven4j

Wallhaven API for Java

android java jitpack parsing wallhaven wallpaper

Last synced: 26 Apr 2025

https://github.com/Andres6936/HALE

Hale is a turn based RPG with deep tactical combat and character customization. Included is a lengthy and varied campaign with many quests, items and monsters, visiting a variety of locales. The entire system is built to be moddable from the ground up.

2d game java role-playing rpg-game turn-based-strategy