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/ajitsing/design_patterns

Design Patterns

design-patterns java

Last synced: 05 Oct 2025

https://github.com/decebals/auditor

Auditing micro framework for Java

auditing java

Last synced: 10 Apr 2025

https://github.com/allenai/ml

Re-usable low-level ML components

crf java lombok

Last synced: 13 Oct 2025

https://github.com/finn-no/retriable-kafka-consumer

Retriable consumer pool for kafka

finn-no java kafka

Last synced: 10 Apr 2025

https://github.com/sivaprasadreddy/modern-spring-boot

Modern Spring Boot features demo

java spring-boot testcontainers

Last synced: 28 Oct 2025

https://github.com/keremtan/carfactory

This is a fictional system software which runs on console. This system is designed to understand the uses of Template Method and Iterator Design Patterns.

design-patterns designpatterns iterator-pattern java maven patterns template-method-pattern template-pattern

Last synced: 13 Apr 2025

https://github.com/objectionary/dejump

Replaces all GOTO objects in EO program with semantically equivalent ones but without GOTO

eolang java

Last synced: 01 May 2025

https://github.com/edoardottt/tweetpro

University Java project. It's a lightweight tool specialized in tweets analysis. :chart_with_upwards_trend:

design-patterns graph java java-8 java-library javadev json retweets tweet tweets twitter university university-assignment university-course university-project

Last synced: 03 Aug 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/drapegnik/bst

:evergreen_tree: Binary Search Tree with console visualization on Java

binary-search-tree bsu console-visualization famcs java labs study tree

Last synced: 18 Mar 2025

https://github.com/powersystem2024/dynamic-devs

Repositorio del grupo "DynamicDevs⚡", estudiantes de la Tecnicatura Universitaria en Programación UTN

backend frontend java javascript programming python vuejs web website

Last synced: 11 Apr 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/cworld1/notie

Android note App complies with Material You specifications, developed using Java.

android java notes notes-app

Last synced: 15 Jul 2025

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

APCS w/ K

java

Last synced: 11 Apr 2025

https://github.com/ashish2030/upgrad-assignment

ᴛʜɪꜱ ɪꜱ ᴍʏ ꜱᴍᴀʟʟ ᴊᴀᴠᴀ ɢʀᴀᴅᴇᴅ ᴀꜱꜱɪɢɴᴍᴇɴᴛ ɢɪᴠᴇɴ ʙʏ ᴜᴘɢʀᴀᴅ

bfs-algorithm dfs-algorithm dijkstra-algorithm graph java shortest-path-algorithm upgrad

Last synced: 20 Jun 2025

https://github.com/jmp/poker-hand-evaluator

A small poker hand evaluator written in Java. Implements a relatively fast 5-card hand evaluator for calculating the values of poker hands and comparing them.

comparison evaluator java poker

Last synced: 30 Apr 2025

https://github.com/grahamedgecombe/apiviz

A fork of APIviz with out of the box support for classes compiled with Java 8.

java javadoc

Last synced: 11 Apr 2025

https://github.com/osandadeshan/appium-java-mobile-automation-demo

This project serves as a boilerplate for automating both Android and iOS mobile applications using a single codebase with TestNG and the Appium library.

android android-app appium automation cross-platform ios ios-app java maven page-object-model testng testng-framework xcode

Last synced: 06 May 2025

https://github.com/saturnsvoid/java-http-botnet-frame

A HTTP bot in Java with basic commands and ability's

botnet cross-platform http http-bot java

Last synced: 13 Apr 2025

https://github.com/wbrefvem/python-jolokia

Python client for Jolokia, an HTTP-JMX bridge

enterprise-java http-bridge java jmx jolokia python

Last synced: 18 Jan 2026

https://github.com/netomi/uom

A library to represent quantities and perform conversions between units of measurements with double or arbitray precision.

java units-converter units-of-measurement unitsofmeasurement

Last synced: 12 May 2025

https://github.com/lijiahangmax/orion-ops-extension-plugins

此项目为 orion-ops 的拓展插件仓库, 目前仅包含了机器监控数据采集端

alarm alarms java metrics monitor monitoring orion-ops oshi

Last synced: 16 Apr 2025

https://github.com/objectionary/eo-graphs

A few classic graph algorithms implemented in C++, Java, and EOLANG

algorithm cpp eolang graph graph-algorithms java

Last synced: 01 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/mygreen/excel-cellformatter

Excelのセルの書式を解析してフォーマットするライブラリ。

excel java poi

Last synced: 16 Jan 2026

https://github.com/c4j/commander4j

Commander4j Production Recording and Labelling using EAN128 barcodes. Now includes Weight Checks, Waste Logging, Quality Control and much more. Supports mySQL, MS SQL Server and Oracle Databases. Java Swing Client and Javascript web pages for Zebra/Morotolla/Symbol wireless mobile computers.

barcode barcode-generator barcode-scanner ean128 enterprise gs1 gs1-standard interfaces java pallet production quality-control reporting sscc sscc-labels traceability waste-management weight-tracking

Last synced: 14 Mar 2026

https://github.com/zengfr/svm-neuro-matching

SVM Neuro Matching C#机器学习 LibSVM支持向量机 神经网络 匹配 中文文本分词分类聚类

accrod aforge csharp hotel java learning libsvm matching neuro nlp room svm svm-neuro-matching tfidf zengfr

Last synced: 11 Apr 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/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/D4rK7355608/com.d4rk.englishwithlidia.plus

English with Lidia Plus is an Android app that helps you learn English with fun and engaging lessons. Whether you are a beginner or an advanced learner, English with Lidia Plus will help you achieve your goals and improve your fluency. 📗

android android-app android-application android-applications android-apps androidstudio apk audio-lecture audio-lessons d4rk foss google-play-app java kotlin kotlin-android learn-english learning teaching teaching-material website

Last synced: 21 Apr 2025

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/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/uportal-project/newsreaderportlet

Java Portlet for viewing syndicated news feeds.

java portal portlet uportal uportal-start-bundled

Last synced: 05 May 2026

https://github.com/priyansh17/dear-diary

The App aims at helping people to fight from depression and communicate with them at a 1-1 basis alongside giving them suggestions based on their choices which will be taken from the user in various formats such as MCQ for a one time basis and Diary entries of user on a daily basis. The app aims to help mainly people who are introvert and don't share their emotions easily with others who are depressed. we aim to ulift their emotions and make world a better place for them.

android depression diary-entries emotions hacktoberfest hacktoberfest-2021 hacktoberfest-accepted hacktoberfest-starter hacktoberfest2021 java kotlin-android python3 recommendation-system recommender-engine sentiment-analysis sentiments

Last synced: 29 Oct 2025

https://github.com/cicirello/interactivebinpacking

Self-guided tutorial on combinatorial optimization, the bin packing problem, and constructive heuristics, suitable for use as course assignments, or by self-directed learners.

bin-packing combinatorial-optimization constructive-heuristics courseware discrete-optimization java self-directed-learning self-guided-tutorial tutorial

Last synced: 07 May 2025

https://github.com/hvdwolf/fet

A simple tool that adds some extra functionality to your FYT car head unit.

android fyt java sc9863 shell uis7862 uis8581 ums512

Last synced: 14 Apr 2025

https://github.com/coobird/simpleimageviewer4j

a simple image viewer for Java

image-viewer java java-gui swing

Last synced: 22 Mar 2025

https://github.com/gouravkhunger/accolib

Amazing and easy to use Accordion Library for Android built with kotlin

android android-library android-ui hacktoberfest java kotlin

Last synced: 08 Mar 2026

https://github.com/coding-delight-01/dsa-in-java

A beginner friendly repository made specifically for open source beginners. Contribute on this repository with valid pull requests

algorithms-and-data-structures beginner-friendly hacktoberfest hacktoberfest-accepted java

Last synced: 22 Sep 2025

https://github.com/lemon24/linesieve

An unholy blend of grep, sed, awk, and Python.

awk cli command-line grep java python regex replace search sed terminal text text-processing

Last synced: 24 Dec 2025

https://github.com/themrmilchmann/gradle-ecj

A Gradle plugin for using the Eclipse Compiler for Java (ECJ) for compiling Java files.

compile ecj eclipse-compiler gradle java

Last synced: 07 Apr 2025

https://github.com/kavithma-thushal/ginzarestaurant

Restaurant using java 11, javafx & maven

java javafx mysql

Last synced: 25 Jul 2025

https://github.com/huanfenz/huanfenzread4p2

基于Android的电子书阅读器

android java

Last synced: 22 Apr 2025

https://github.com/rashidi/boot-data-rest-events-sample

Example of application that uses Spring Data Events to perform validation.

event-driven java sample-app spring-boot spring-data-rest tutorial

Last synced: 23 Mar 2025

https://github.com/liyupi/yu-ai-code-mother

编程导航 2025 年 AI + 微服务全栈新项目,基于 Spring Boot 3 + LangChain4j 构建对标大厂的 AI 应用生成平台,支持多种模式的智能代码生成、可视化编辑预览、一键部署分享、应用管理、AI 智能路由等。覆盖 AI 智能体开发、LangGraph4j 工作流、Tool Calling、SSE、Vue 3 全栈开发、Spring Cloud 微服务架构、MySQL / Redis / COS / Caffeine 存储、Nginx、多种设计模式、ARMS + Prometheus + Grafana 监控、Cursor Vibe Coding 等核心技术。 用一套教程掌握大厂级 AI 智能体开发+前后端核心技术,成为 AI 时代企业的香饽饽,给你的简历增加竞争力

ai backend deepseek frontend java langchain4j langgraph4j mysql nginx project redis springboot springcloud vue

Last synced: 31 Jul 2025

https://github.com/mkotb/menuapi

A lightweight and extensive MenuAPI using Java 8

bukkit java menu menu-api spigot

Last synced: 04 Mar 2025

https://github.com/smith8h/sconnect

A Http client based library that use OkHttp3 for simply making requests to URLs and APIs, and get a response as Json or plain text.

android android-lib android-library connect http http-client http-request http-requests http-response https java json json-parser kotlin rest-api

Last synced: 31 Oct 2025

https://github.com/reprezen/genflow

A unified framework for API code generators that work with OpenAPI, RAPID-ML and other description languages.

api api-client apidoc apidoc-generator apidocs code codegen documentation generation java openapi openapi-codegen openapi-documentation openapi-generator rapid-ml rest swagger swagger-codegen xtend

Last synced: 19 Jul 2025

https://github.com/stefangeyer/challonge-java

Java bindings for the Challonge API

challonge java rest tournament

Last synced: 11 Jan 2026

https://github.com/yyunikov/vertx-gradle-starter

Java 8 starter application with example of using Vert.X framework, Gradle build system, profiles configuration and SLF4J

architecture gradle java sample starter starter-template vertx vertx-web

Last synced: 14 May 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/supergaga/generator

mybatis generator plugin use table comment

java mybatis-generator-plugins

Last synced: 11 Jan 2026

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/arteam/dropwizard-http2-client

Dropwizard Integration with Jetty HTTP/1.1 and HTTP/2 client

dropwizard http2 java

Last synced: 25 Jun 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/cf-toolsuite/cf-hoover

Easily aggregate accounting and snapshot usage reporting across multiple foundations

cloud-foundry java reactor spring-boot-3 spring-webflux

Last synced: 11 Jul 2025

https://github.com/sondosaabed/palestinian-dairy-factory

Java to apply a new project Palestinian Dairy Factory

console diary-factory inheritance java oop palestine

Last synced: 22 Apr 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/sondosaabed/recursive-decent-parser

a Java parser implemented using Recursive Decent Parser utlized javafx for GUI. This is part of the coursework of TRANSLATORS AND PROGRAMMING LANGUAGES

java javafx programming-languages recursive-descent-parser translators

Last synced: 30 Oct 2025

https://github.com/henkelmax/opus4j

A Java wrapper for the Opus Codec.

codec java jna opus

Last synced: 22 Apr 2025

https://github.com/mehdihadeli/spring-food-delivery-microservices

☕A practical and imaginary food delivery microservices, built with java spring, domain-driven design, cqrs, vertical slice architecture, event-driven architecture, and the latest technologies.

cloud-native distributed-systems event-driven event-driven-architecture java microservices outbox-pattern rabbitmq spring spring-boot vertical-slice-architecture

Last synced: 24 Apr 2025

https://github.com/henkelmax/lame4j

A Java wrapper for LAME.

java jna lame lame-wrapper lame4j

Last synced: 22 Apr 2025

https://github.com/mateusznakodach/heroesofdomaindrivendesign.eventsourcing.java.axon.spring

Shows how to use Domain-Driven Design, Event Storming, Event Modeling and Event Sourcing in Heroes of Might & Magic III domain.

axon axonframework ddd dddheroes domain-driven-design event-sourcing eventmodeling eventsourcing eventstorming java spring spring-boot

Last synced: 03 Jul 2025

https://github.com/thoqbk/code-collection

A shell script tool for decompiling multiple jar files and re-arranging source code

decompile jar java

Last synced: 13 May 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/we2am-bassem/gogogo

It supports search by voice to those who needs. 🎙🎤,It supports searching for the exact sentence or some words in it. 👀,Moreover, it supports solving equations and systems of equations. 🧠🖩

compass css html5 intellij java mongodb mongodb-atlas mvc-pattern postman spring spring-boot thymeleaf vscode

Last synced: 12 Jul 2025

https://github.com/sondosaabed/optimal-coins-game-strategy

a java project that uses dynamic programming to implemnt the Optimal coins collecting game strategy

dynamic-programming java javafx optimal-game-strategy

Last synced: 22 Apr 2025

https://github.com/f-lab-edu/show-your-worth

[연봉 4000만원 이상] 지도 기반 소셜 네트워크 서비스

graduate java jpa-hibernate mybatis spring

Last synced: 23 Apr 2025

https://github.com/citygml4j/citygson

A Gson based library for parsing and serializing CityJSON

citygml cityjson gson java json parsing writing

Last synced: 19 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/dncomponents/dncomponents

Java UI web framework

gwt java javascript typescript

Last synced: 23 Sep 2025

https://github.com/kavithma-thushal/fruit-juice-lab

A Simple POS System using java 8 & javafx in Layered - Architecture

java javafx mysql

Last synced: 24 Jul 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/arsy786/spring-boot-roadmap

This repo serves as a thorough guide to mastering Spring Boot!

2022 guide java spring-boot

Last synced: 10 Aug 2025

https://github.com/vbauer/commons-vfs2-cifs

SMB/CIFS provider for Commons VFS

cifs-provider commons-vfs2-cifs java jcifs smb

Last synced: 14 Sep 2025

https://github.com/dwolla/dwolla-v2-kotlin

Official Dwolla SDK for Kotlin/Java

dwolla dwolla-api java kotlin sdk

Last synced: 06 Apr 2025

https://github.com/zelechos/pragmatic_java

Repositorio de Java para explicar, aprender, estudiar desde los conceptos mas simples a los mas complicados

annotations java javaee javase modern-java oop sockets testing

Last synced: 10 Apr 2025