An open API service indexing awesome lists of open source software.

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.

https://github.com/pprattis/address-book-contact-management

A Java console application that manages an address book where the contacts are saved within an archive.

bufferedreader computer-science console-application java program project student

Last synced: 12 Apr 2025

https://github.com/jason-tung/mks21x

APCS w/ K

java

Last synced: 11 Apr 2025

https://github.com/rajspeaks/code-pyramid

Code-Pyramid consists of Competitive & Beginner level codes, written in different programming languages like C, C++, Java, Python.

c codewars coding-challenge data-structures dsa dsa-algorithm dsa-practice hacktoberfest java python rajdeep-das rajspeaks

Last synced: 07 May 2025

https://github.com/keremtan/java-spring

This repository has basic information about Spring Framework and a sample application made with Spring Boot.

back-end dependency-injection docker-compose h2-database java postgresql-database rest-api spring spring-boot spring-framework

Last synced: 13 Apr 2025

https://github.com/scify/icsee

ICSee runs on small portable devices (smartphones, tablets) and makes reading and object identification easier. Simply, conveniently and always available!

android assistive assistive-technology hacktoberfest java opencv special-needs video video-processing visual-impairments

Last synced: 06 Sep 2025

https://github.com/deep110/lucid-engine

A basic physics3D engine for learning purposes.

game-development game-engine-2d java physics-engine

Last synced: 11 Apr 2025

https://github.com/nerdherd/chargedup2023

Code for FRC Team 687's 2023 robot.

frc java robotics

Last synced: 12 Apr 2025

https://github.com/moderocky/mimic

A stronger alternative for Java's Proxy API. Allows the creation of 'mimicked' classes and interfaces with the ability to replace their method behaviour.

bytecode java java-17 proxy reflection

Last synced: 21 Mar 2025

https://github.com/wangji92/wdt

Convenient for Java developers to quickly query common commands

arthas java shell spring-boot spring-shell wdt

Last synced: 19 Mar 2025

https://github.com/minatisleeping/movieist

REST API powered by Spring Boot

java mongodb spring-boot

Last synced: 20 Jun 2025

https://github.com/weizhiwen/knowledge-base

知识库,包括 Java、Python、日常的一些记录等等

java knowledge-sharing mongodb python redis

Last synced: 19 Mar 2025

https://github.com/binance4j/binance4j

Java connectors and technical analysis for the Binance API

api binance java margin rest spot strategy trading trading-strategy websocket

Last synced: 20 Mar 2025

https://github.com/lslxy1021/DYB

斗鱼弹幕Demo

database douyu-barrages java mysql

Last synced: 27 Mar 2025

https://github.com/smallnest/rpcx-agent

Agent to invoke rpcx services in C++, Java, Python, C#, Ruby, etc. for rpcx 2.x

cross-platform golang java rpc rpcx

Last synced: 04 Apr 2026

https://github.com/exadel-inc/etoolbox-query-kit

Provides the UI and API for easily creating and transforming data queries in languages such as XPath, JCR-SQL2, etc. for the AEM ecosystem

aem aem64 aem65 exadel-martech jackrabbit java jcr jcr-sql2 lucene query xpath

Last synced: 15 Apr 2025

https://github.com/arjuncvinod/data-structures-and-algorithms

Data Structures and Algorithms implemented in different languages

c cpp csharp go java javascript python swift

Last synced: 30 Oct 2025

https://github.com/kanugurajesh/tic-tac-toe

A simple tic tac toe app using java

batch-file java practice-project tic-tac-toe

Last synced: 24 Jun 2025

https://github.com/dizitart/jbus

An Open Source Event Bus for Java 1.6+

event-bus java weak-references

Last synced: 17 Feb 2026

https://github.com/abdelillahbel/winiwalkandroid

WiniWalk is a fun and motivating walking app designed to turn every step into a chance to win! Whether you're a fitness enthusiast or just looking to stay active, WiniWalk provides a unique and enjoyable way to track your walking progress while giving you the opportunity to earn rewards and prizes along the way.

android-app firebase-realtime-database fitness-app idea java kotlin-android open-source steps-counter

Last synced: 17 Aug 2025

https://github.com/hashimsaffarini/data_structures_course

Complete Java Data Structures course with custom implementations, problem-solving, and clean examples. Perfect for students and self-learners.

data-structures java oop problem-solving

Last synced: 21 Jul 2025

https://github.com/madbob/gasdotto

Gestionale web-based per i Gruppi di Acquisto

gwt java management php

Last synced: 13 Apr 2025

https://github.com/jenkinsci/jelly

Patched jelly used in Jenkins

java jelly jenkins

Last synced: 24 Jun 2025

https://github.com/chen0040/java-lda

Package provides java implementation of the latent dirichlet allocation (LDA) for topic modelling

java latent-dirichlet-allocation natural-language-processing statistical-methods topic-modeling

Last synced: 01 Aug 2025

https://github.com/chen0040/java-genetic-programming

Genetic-programming framework for various genetic programming paradigms such as linear genetic programming, tree genetic programming, gene expression programming, etc

classification-algorithm evolutionary-algorithms evolutionary-computation gene-expression genetic-programming java linear-genetic-programming machine-learning optimization optimization-algorithms symbolic-regression tree-gp

Last synced: 10 Sep 2025

https://github.com/davidhancu/javachallenges

Are you a beginner in Java? Or are you an expert? No matter your level of expertise, you can find challenges and project ideas here.

challenges ideas java projects

Last synced: 01 Sep 2025

https://github.com/yuriytkach/fundraiser-tracker

Fundraiser Tracker implemented as AWS Lambda with ability to manage through Slack and autosync with Monobank and Privatbank

aws aws-lambda aws-secrets-manager dynamodb java monobank-api privatbank-api quarkus slack-bot

Last synced: 26 Jul 2025

https://github.com/younes-charfaoui/library-simulator

This is a project for the practical work of the Operating system module in The University of Ibn Khaldoun - Algeria in which we had used the notion of threads and parallelism to make a library simulator.

animation java javafx multithreading mutex-synchronisation mutual-exclusion semaphore simulator

Last synced: 30 Jul 2025

https://github.com/harp077/pj-ntp-server

Pure Java NTP server. Releases = https://sourceforge.net/projects/pj-ntp-server

java ntp ntp-server pure server sntp sntp-server

Last synced: 14 Apr 2025

https://github.com/glavo/kala-compress

Modular Apache commons compress

commons-compress compress java

Last synced: 02 Apr 2026

https://github.com/raymondxu/java-workshop

Intermediate Java workshop on variables, abstraction, and design patterns ☕

design-patterns java workshop

Last synced: 15 Aug 2025

https://github.com/rameshmf/j2ee-design-patterns

Repository for J2EE design patterns with examples.

design-patterns j2ee java

Last synced: 03 May 2025

https://github.com/cjminecraft01/cjcore

The core mod for all of my other mods

api forge forge-mod java java-8

Last synced: 07 Apr 2025

https://github.com/tcgdex/java-sdk

Communicate with the Open Source TCGdex API in Kotlin/Java using the SDK

api card java kotlin pokemon sdk tcg tcgdex trading

Last synced: 08 Apr 2025

https://github.com/kstenschke/copypastestack-plugin

"Copy/Paste Stack" plugin for Jetbrains IDEs

clipboard intellij intellij-plugin java open-api phpstorm plugin

Last synced: 03 Oct 2025

https://github.com/mehmettemizkan/learningjava

This repo contains demo programs written in Java.

java mehmettemizkan

Last synced: 01 Sep 2025

https://github.com/carmjos/aliddns-updater

简单轻量的阿里云DDNS更新器。

aliyun aliyun-ddns java

Last synced: 12 May 2025

https://github.com/ahmedfarag9/ci-cd-pipeline-jenkins-odoo-project

A Multi-branch CI-CD Pipeline Using Jenkins, Docker, AWS, Maven To Deploy an Odoo ERP custom module & a simple Java Maven web app.

amazon-web-services bash bash-scripting ci-cd devops docker docker-compose dockerhub ec2-instance groovy java jenkins maven odoo ssh webhook

Last synced: 11 Apr 2026

https://github.com/pspdfkit/pspdfkit-android-simple-example

Simple PSPDFKit for Android example app

android java kotlin pdf pspdfkit

Last synced: 08 Jul 2025

https://github.com/bh-tec/dio-potecia-tech-ifood-java

Repositório criado para os desafios de códigos da Potência Tech powered by iFood - Java Beginners da DIO.

bootcamp desafio-de-codigo dio ifood java

Last synced: 19 Apr 2025

https://github.com/artipie/central

Artipie central files and configurations

artifact java website

Last synced: 13 May 2025

https://github.com/engineeringsoftware/jog

Pattern-Based Peephole Optimizations with Java JIT Tests

compiler java jit jit-compiler openjdk optimization pattern peephole shadow test

Last synced: 03 Sep 2025

https://github.com/chestshop-authors/chestshopnotifier

Bukkit plugin that allows your players to see who bought or sold what while they were offline.

bukkit chestshop hacktoberfest java minecraft plugin spigot

Last synced: 16 Apr 2025

https://github.com/tanveerns/neo-adventure-game

neo adventure game

game java java-awt

Last synced: 11 Apr 2025

https://github.com/apache/james-jsieve

Mirror of Apache James jSieve

james java mail network-server

Last synced: 10 Mar 2026

https://github.com/suryasekhar14/hacktoberfest-2021

A repository for Hacktober Fest contributions. Everyone is welcome. Fork away!

appdevelopment c cpp hacktober-fest-contributions hacktoberfest hacktoberfest-accepted hacktoberfest2021 java javascript python

Last synced: 10 Mar 2026

https://github.com/oussamabonnor1/firebasechatapp

a simple android app that uses FireBase and implements it's features to ensure fluent messaging functions.

android-application android-studio authentication chat firebase java json messaging nosql server telegram xml

Last synced: 02 May 2025

https://github.com/mchernyakov/various-ttl-map

Thread-safe map (cache) with various time to live of keys

cache java map thread-safe-cache thread-safety ttl ttl-cache ttl-map

Last synced: 07 Apr 2025

https://github.com/omarlamin01/dairy-farm-management-system

Desktop application for managing dairy farms, built using java, javafx & MySQL

java javafx javafx-desktop-apps mysql mysql-database

Last synced: 11 Jun 2025

https://github.com/mmtk/mmtk-jikesrvm

JikesRVM binding for MMTk

java jikesrvm mmtk vm

Last synced: 10 Feb 2026

https://github.com/Simsilica/IsoSurface

Infinite terrain library based on IsoSurface generation.

isosurface java jme3 jmonkeyengine jmonkeyengine3 terrain-library

Last synced: 19 Mar 2026

https://github.com/ardetrick/ory-hydra-refrence-java

An example/reference implementation of Ory Hydra in Java with SpringBoot. Shows the basicis of OAuth2 integraiton with OIDC. Includes a full suite of integration tests using Testcontainers.

gradle java oauth2 oauth2-authorization oauth2-provider oauth2-server oidc ory-hydra playwright playwright-java spring-boot springboot testcontainers

Last synced: 01 Mar 2026

https://github.com/kakarottocui/stopbarsys

基于java SpringBoot框架和Vue的停车管理系统

java mysql springboot vue

Last synced: 01 Mar 2026

https://github.com/pixee/simple-gradle-codemod-tutorial

An example codemodder codemod

codemod codemods java

Last synced: 31 Jan 2026

https://github.com/stevenschwenke/java8workshop

Java 8 Workshop including exercises

java java-8 workshop

Last synced: 01 Apr 2026

https://github.com/ianramzy/ticker-iq

📈 Stock screener and portfolio analyzer, providing key insights on financial reports, news articles and more!

java javafx scraping stock stock-portfolio

Last synced: 03 Mar 2026

https://github.com/ministero-salute/it-dgc-verifier-service

The EU Digital COVID Certificate Verifier Service is part of the national backends and caches the public keys that are distributed through the DGCG. It is accessed by the Verifier Apps to update the key store periodically.

backend-service covid-19 digital-covid-certificate java

Last synced: 30 Jan 2026

https://github.com/muehmar/gradle-openapi-schema

Generate schema sources for Java from an OpenAPI 3.0.x or 3.1.x specification.

java openapi openapi-specification

Last synced: 30 Jan 2026

https://github.com/thedeathlycow/more-geodes

A Minecraft Fabric mod to add more geodes to your world

fabricmc java minecraft minecraft-mod

Last synced: 05 Mar 2026

https://github.com/evochora/evochora

Evochora: Simulation for foundational artificial life research

alife artificial-life digital-life evolution java open-ended-evolution simulation

Last synced: 02 Feb 2026

https://github.com/2bllw8/notepad

A notepad for Android

android-app java notepad

Last synced: 26 Feb 2026

https://github.com/codestates-seb/seb40_main_012

🍒 CherryPick - 책과 문화콘텐츠 정보 공유 커뮤니티 서비스

java javascript react spring-boot

Last synced: 05 Mar 2026

https://github.com/varshithvhegde/pdfsign

Android App to Digitaly Sign PDF

android androidstudio java pdfsign playstore

Last synced: 04 Mar 2026

https://github.com/uctakeoff/uc-jni

uc::jni is a Java Native Interface (JNI) wrapper library created C++14 single-header.

android cpp cpp11 cpp14 java jni jni-android

Last synced: 17 Mar 2026

https://github.com/japlscript/japlscript

Less than perfect bridge from Java to AppleScript and back

ant applescript japlscript java maven script

Last synced: 05 Mar 2026

https://github.com/Simsilica/SimArboreal-Editor

Editor using the SimArboreal library to generate exportable tree models.

java jme3 jmonkeyengine jmonkeyengine3

Last synced: 19 Mar 2026

https://github.com/gjermundgaraba/beaconmqtt

Android app to forward beacon events over MQTT (for home automation scenarios)

android app beacon estimote iot java mqtt

Last synced: 05 Mar 2026

https://github.com/traffic-hunter/traffic_hunter

Traffic-Hunter is an APM (Application Performance Monitoring) tool designed for simple performance monitoring of small-scale projects.

bytebuddy grafana java javaagent metrics spring-boot timescaledb trace

Last synced: 20 Mar 2025

https://github.com/p1ckle-rick/CalgaryHacks-2018

:gun: :bomb: :loudspeaker: Shootify is a scalable and reliable gunshot alerting analysis system for Smart Cities.

arduino bomb dreamweaver emergency emergency-response emergency-services gunshot java javascript mqtt mysql noise python sensor shooting smart-cities smart-city tweepy

Last synced: 05 Apr 2025

https://github.com/marwa-eltayeb/englishquiz

It is a quiz app for English language.

android answers english english-quiz java quiz quizapp

Last synced: 11 Jul 2025

https://github.com/barrettotte/ibmi-springboot-api

A Spring Boot API to easily expose IBMi information. Currently has endpoints to return lists for libraries, files, and members.

db2 ibmi ibmi-java java spring-boot

Last synced: 11 Apr 2025

https://github.com/licoy/sharding-jdbc-dbs

使用sharding-jdbc数据库分库分表CURD

java mysql

Last synced: 12 Jul 2025

https://github.com/caoccao/jaspiler

Jaspiler is a Java to Java transpiler.

babel java plugins transpile transpiler

Last synced: 13 Jul 2025

https://github.com/zxybazh/bookshop-system-java

DataBase Project: A bookshop system on Java & MySQL

bookshop java mysql

Last synced: 11 Apr 2025

https://github.com/deniswsrosa/couchbase-spring-data-sample

An example of how to setup and APp using Couchbase, Spring-Boot and Spring-Data

couchbase java spring-boot spring-data

Last synced: 05 May 2025

https://github.com/mindexpert7546/learn-dsa

Data structure and Algorithm (DSA).A data structure is a method of organizing data in a virtual system. Think of sequences of numbers, or tables of data: these are both well-defined data structures. An algorithm is a sequence of steps executed by a computer that takes an input and transforms it into a target output.

algorithms-and-data-structures c cpp data-structures dsa dsa-algorithm hacktoberfest hacktoberfest-accepted hacktoberfest-starter hacktoberfest2023 java python

Last synced: 18 Jun 2025

https://github.com/KaShiekzmi/Gym-Management-System-GUI-OOP-Java-Project

Java Gym Management System with GUI - A comprehensive OOP project for managing gym operations. Features include login, member/trainer management, machine booking, financial accounts, and reports. Developed by Kashif Abbas Kazmi and Muhammad Sarim.

gui gym-management-system java netbeans object-oriented-programming swing

Last synced: 04 Apr 2025

https://github.com/anataliocs/reactiveapp2019

Building a Reactive App with Angular and Spring Boot 2 (REVISION 2019)

java reactive reactive-programming spring-boot webflux

Last synced: 12 Apr 2025

https://github.com/cincheo/jsweet-angular2-quickstart

JSweet-enabled Angular 2 quickstart

angular java jsweet typescript

Last synced: 11 Jul 2025