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/speedment/speedment-code-samples

Code samples for the Speedment ORM

database examples in-memory java orm speedment sql

Last synced: 29 Jun 2025

https://github.com/guillaumefalourd/java-trilha-basica

Trilha de introdução ao uso de Java no Back-End 📚☕️🇧🇷

back-end challenges java learning mentoring spring-boot

Last synced: 23 Mar 2025

https://github.com/mindula-dilthushan/layered-architecture-theory-example

Layered Architecture Theory Example Project.

java java-8 layerd-architecture

Last synced: 16 Apr 2025

https://github.com/yugabytedb-samples/openai-pgvector-lodging-service

A lodging recommendation service for properties in San Francisco, powered by OpenAI and the PostgreSQL pgvector extension.

java nodejs openai openai-api pgvector postgresql react yugabytedb

Last synced: 15 May 2025

https://github.com/depromeet/jalingobi-server

🐟 자린고비 : 쓸데없는 소비 멈춰 ٩(๑`^´๑)۶

java jpa mysql spring-boot

Last synced: 19 Apr 2025

https://github.com/YangDai2003/CopilotOCR-Android

Fast OCR, multi-language support, sleek design. Scan, edit, and share text effortlessly. Smart barcode and QR code scanning.

android android-ocr-application java ocr ocr-android ocr-text-reader

Last synced: 20 Apr 2025

https://github.com/ashish2030/data-structures

This is my Data Structure code using Java Language

data-structures java problem-solving

Last synced: 11 Apr 2025

https://github.com/jlyne/proxyqueues

Velocity queueing solution

java minecraft queue velocity

Last synced: 08 Apr 2025

https://github.com/luismr/kafka-springboot-blueprint

This project demonstrates three different Kafka delivery modes using Spring Boot:

java java-17 java17 juni5 junit mockito spring springboot

Last synced: 04 May 2026

https://github.com/vladimir-dejanovic/graphql-vs-traditional-rest-api-conftalk_demo

This is demo code for my conference talk GraphQL vs Traditional REST API. It consists of simple REST end points and GraphQL end point, with MongoDB in backened.

demo graphql graphql-api graphql-java graphql-server java rest rest-api

Last synced: 06 Mar 2026

https://github.com/drako01/java-59570

Repositorio con todas las Actividades repasadas en Clase a lo largo del Curso

api-rest eclipse-ide java jpa-hibernate mysql spring-boot sql

Last synced: 03 May 2025

https://github.com/tuannh982/phantom

Simple, fast Key-Value storage. Inspired by HaloDB

database from-scratch hash-indexes java key-value key-value-database

Last synced: 11 Apr 2025

https://github.com/ev3dev-lang-java/openjdk-ev3

A custom Build of OpenJDK 9/10/11/12/13/14/15 for EV3, a Lego Mindstorms Brick using ARM Soft Float

adoptopenjdk cross-compiler ev3 ev3dev java java10 java11 java12 java13 java14 java15 java9 jvm lejos lejos-ev3 openjdk

Last synced: 10 Apr 2025

https://github.com/dwight-studio/jarmemu

Simple ARMv7 simulator written in Java, intended for educational purpose.

arm armv7 educational java portable simulator

Last synced: 16 Feb 2026

https://github.com/anuken/novi

A 2D multiplayer shooter.

game-2d java libgdx multiplatform multiplayer

Last synced: 01 May 2025

https://github.com/vankka/mcdiscordreserializer

A library for transcoding between Minecraft and Discord.

java minecraft

Last synced: 20 Jun 2025

https://github.com/codestates-seb/seb40_main_006

위치 기반 스터디 모집 플랫폼 JamIt 🍓

aws-ec2 java javascript react spring vercel

Last synced: 13 Apr 2025

https://github.com/safnaj/java-web-application

Web App for Online Games Selling Site using Java with JSP & Servlets. Also used HTML5, CSS3, Bootstrap and MySQL.

bootstrap css html5 java java8 jsp jsp-servlet mvc

Last synced: 12 Apr 2025

https://github.com/treblle/treblle-spring

The official Treblle SDK for Java. Seamlessly integrate Treblle to manage communication with your dashboard, send errors, and secure sensitive data.

api api-monitoring api-observability backend developer-tool java java-spring-sdk logging rest-api restful-api sdk sdk-java spring spring-backend treblle treblle-sdk

Last synced: 08 Jul 2025

https://github.com/retrixuy/jdecrypter

Java Application that decrypts "Click'n load" links of JDownloader

aes-encryption clicknload java jdownloader jdownloader-2

Last synced: 03 Sep 2025

https://github.com/cassiomolin/lucene-example

Example of application for indexing and searching with Apache Lucene.

java lucene

Last synced: 01 Sep 2025

https://github.com/premium-minds/pm-wicket-utils

A library with Wicket Components, Behaviours and some other stuff.

java wicket

Last synced: 30 Jul 2025

https://github.com/kakarottocui/springbootvuesecondshop

基于java SpringBoot和Vue校园二手交易商城

java mysql springboot vue

Last synced: 28 Jul 2025

https://github.com/skuzzle/snapshot-tests

Convenient snapshot testing for Java

java junit junit5-extension testing

Last synced: 17 Mar 2025

https://github.com/yagarea/java-chat

Simple encrypted chat in Java

chat hacktoberfest java rsa rsa-encryption

Last synced: 28 Jun 2025

https://github.com/nameisjayant/android-java-mvvm-with-roomdatabase-retrofit-and-recyclerview

we are going to build a simple project with the help of Room Database , ViewModal , LiveData and Retrofit. So, What is the agenda of this project? First we will send a retrofit request to the web server for json data, then after fetching json data from the server , we will store that data into Room Database and then shows into the recyclerview. Alright!

android androidstudio api java retrofit roomdatabase

Last synced: 04 Jul 2025

https://github.com/moeraorg/moera-commons

Moera common classes, for issues use: https://github.com/MoeraOrg/moera-issues/issues

cryptography java library moera

Last synced: 16 Mar 2026

https://github.com/kiwiproject/consul-client

A Consul Client for Java

client consul java

Last synced: 08 Mar 2026

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

The Java SDK for GrowthBook (JVM, Android)

ab-testing feature-flags java sdk

Last synced: 29 Jan 2026

https://github.com/apache/brooklyn-client

Apache Brooklyn Client

brooklyn cloud java

Last synced: 19 Oct 2025

https://github.com/ardesco/appium-maven-template

A Maven template for Appium

appium java maven template

Last synced: 06 Oct 2025

https://github.com/vorlonsoft/easydokkaplugin

Gradle Script plugin to generate documentation by Dokka documentation engine in Javadoc or other formats for Java, Kotlin, Android and non-Android projects. It's very easy, you don't need to add to dependencies section additional classpath or think about compatibility issues, you don't need additional repositories also.

android dokka gradle gradle-android-plugin gradle-plugin gradle-task java javadoc javadoc-documentation javadocs kotlin

Last synced: 23 Apr 2025

https://github.com/hongzhaohua/jstarcraft-dip

专注于解决数字图像处理领域的几个核心问题:图像转换,图像相似度,目标定位,目标检测,图像分割,图像聚类和图像分类. 为相关领域的研发人员提供完整的通用设计与参考实现. 涵盖了多种数字图像处理,计算机视觉,计算机图形算法.

cg cv dip java

Last synced: 09 Oct 2025

https://github.com/googlecloudplatform/alloydb-java-connector

A Java library for connecting securely to your AlloyDB instances.

alloydb java socket-factory

Last synced: 20 Oct 2025

https://github.com/norconex/commons-lang

Generic library shared between several projects.

java library

Last synced: 29 Apr 2025

https://github.com/apache/geronimo-txmanager

Mirror of Apache Geronimo txmanager

geronimo http java javaee network-server web-framework

Last synced: 10 Apr 2025

https://github.com/shubh2-0/runnable_vs._callable

This GitHub repository explores Runnable and Callable interfaces in Java. It provides examples and code implementations to demonstrate their usage in concurrent programming. Learn the differences and when to use each interface. Enhance your understanding of these Java interfaces.

callable interfaces java java-8 multi-threading runnable threading

Last synced: 24 Oct 2025

https://github.com/hoangsonww/software-design-patterns

🎨 A comprehensive exploration of object-oriented design patterns, featuring fully implemented examples like inheritance, composition, observers, decorators, and factory methods. Built with Java to demonstrate their real-world applications in scalable and maintainable software design.

decorators design design-patterns exceptions factory-method-pattern factory-pattern inheritance iterator java maven model-view-controller multiton mvc-pattern object-oriented-programming observer observer-pattern oop singleton software-design

Last synced: 13 Jul 2025

https://github.com/pigfly/rmit_algorithm_analysis

Central Repo For RMIT Algorithm Analysis Program

algorithms data-structures java rmit swift

Last synced: 09 Apr 2025

https://github.com/derklaro/aerogel

A very lightweight jvm dependency injection library

dependency-injection di hacktoberfest java

Last synced: 04 Sep 2025

https://github.com/sxtanna/korm

Kotlin Object-Relational Mapping

deserialization java korm kotlin language orm serialization

Last synced: 16 Mar 2025

https://github.com/infobip/infobip-bean-validation

Library which provides new features on top of Hibernate Validator and Spring Boot Validation starter.

bean-validation java spring spring-boot

Last synced: 23 Apr 2025

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

Input/Output and File System Objects for EO Programming Laguage

eolang java

Last synced: 14 Jan 2026

https://github.com/cmiles74/scraper

A simple web scraper built around the JavaFX WebEngine

clojure java javafx javascript scraper

Last synced: 11 Mar 2026

https://github.com/faob-dev/tutorials

Covers various languages and technologies

android android-development java jna ndk

Last synced: 24 Apr 2025

https://github.com/ethlo/zally-maven-plugin

OpenAPI specification linter Maven plugin, supporting pluggable rules via Zally. Requires no additional dependencies or services.

api java json linter maven-plugin openapi

Last synced: 22 Apr 2025

https://github.com/faris771/comp333_db_project

Hotel DBMS for Database course

database java javafx mysql scenebuilder

Last synced: 11 Apr 2025

https://github.com/shubh2-0/deadlock-in-java

This repository showcases two projects that demonstrate the concept of deadlock in different scenarios. Project 1: Printer Scanner simulates resource deadlock. Project 2: Water Spices presents a practical example. Clone and explore to understand deadlock and resource management. Contributions are welcome.

deadlock example-project java practice-project thread

Last synced: 23 Apr 2025

https://github.com/petitviolet/android-scaex

powerful expressions

android java scala

Last synced: 28 Feb 2025

https://github.com/robert-kratz/capture-the-flag-multiplayer

This Capture the Flag game, developed during a two-month project phase for a University of Mannheim lecture, features a 2D chessboard map and supports up to four players. Using Java in a client-server setup, it offers strategic multiplayer gameplay.

java javafx minigame

Last synced: 22 Apr 2025

https://github.com/nalukit/iban4g

A port of Artur Mkrtchyan's iban4j project so that it will work with Java, GWT or J2CL. A library for generation and validation of the International Bank Account Numbers IBAN (ISO_13616) and Business Identifier Codes BIC (ISO_9362).

artur-mkrtchyan-iban4j bic gwt gwt-library iban iban4j j2cl java

Last synced: 30 Jul 2025

https://github.com/currenjin/alexandria-playground

📚 모든 지식을 한곳에 모은 거대 도서관이자 연구소

examples java learning-test spring-boot springboot tdd tdd-java test test-driven-development testing tests

Last synced: 13 Jul 2025

https://github.com/proninyaroslav/java-template-engine

Golang-like template engine for Java

golang java template-engine

Last synced: 27 Apr 2025

https://github.com/dzikoysk/linuxenv

Modify JVM environment variables on Linux at runtime

environment-variables java jni jvm ld-library-path linux maven native

Last synced: 28 Oct 2025

https://github.com/artipie/ppom

Parent POM for all Maven projects

artipie java maven-pom parent-pom

Last synced: 14 Jan 2026

https://github.com/codesqueak/z80processor

A Zilog Z80 Processor Emulator in Java

emulator java z80 zilog

Last synced: 06 Jul 2025

https://github.com/utsanjan/greenhouse

GreenHouse Blog is an innovative Java-based social media Android app crafted for effortlessly sharing college updates and engaging gossip

android android-studio blog collegeblog greenhouse java social social-media

Last synced: 18 Sep 2025

https://github.com/pscheidl/fortee

Jakarta EE / Java EE fault-tolerance guard leveraging the Optional pattern. Its power lies in its simplicity.

annotations cdi-extension fault-tolerance jakartaee java javaee simplicity

Last synced: 27 Jul 2025

https://github.com/premium-minds/wicket-crudifier

wicket-crudifier is a library to easily create CRUD's with wicket

crud java wicket

Last synced: 30 Jul 2025

https://github.com/ivstiv/pixelart-converter

This project aims to recreate pixel arts as close as possible to a given image but with a limited color palette. In this case it is working with the color palette of the Drednot's Colored Panel but technically it should not have any issues to work with any other palette given it is in the right json format.

converter dredark drednot java javafx pixelart

Last synced: 13 May 2025

https://github.com/eternalstone/easycaptchaboot

基于EasyCaptcha实现的Java图形验证码,支持gif、中文、算术等类型。解决了该项目存在的一些issues和问题,扩展了springboot-starter包,支持SpringBoot2.x和SpringBoot3.x,支持jdk8、jdk11、jdk17

captcha java springboot springboot3

Last synced: 23 Aug 2025

https://github.com/dkurt/openvino_java

Build, package and publish OpenVINO for Java

android gradle java openvino

Last synced: 15 Sep 2025

https://github.com/ayeujjawalsingh/cheat-sheet

Here is the Some Cheat-Sheet, through which you can easily Revise your knowledge......

canvas cheatsheet cpp css django flask html5 java javascript jquery mysql php python sql

Last synced: 25 Aug 2025

https://github.com/jgperrin/net.jgp.books.spark.ch16

Spark in Action, 2nd edition - chapter 16 - performance, checkpointing, and caching

apache-spark cache checkpoint java java8 manning spark sparkwithjava

Last synced: 06 May 2025

https://github.com/zafir100100/quizapp-java

The "QuizApp-Java" repository on GitHub is a Java-based project that allows developers to create a quiz application with various features, such as multiple-choice questions, timers, and score tracking. The repository includes the source code for the project, as well as documentation on how to use and customize the quiz application.

gui java java-swing multiple-choice-questions netbeans quiz-application score-tracking

Last synced: 19 Apr 2025

https://github.com/jourquin/nodus

Transportation network modeling software designed for multimodal and intermodal freight transport

assignment gis intermodal-freight-transport java modal-choice multimodal-freight-transport network-models networks nodus

Last synced: 26 Jan 2026

https://github.com/harshkapadia2/jdbc_librarymanagementsystem

A JDBC project using Netbeans IDE (Java) and MySQL.

java jdbc mysql netbeans

Last synced: 21 Apr 2025

https://github.com/eugener/highlight.fx

Lightweight syntax highlighting for JavaFX

java javafx syntax-highlighting

Last synced: 05 May 2025

https://github.com/kanugurajesh/dsa-challenge

A 45 days DSA challenge

dsa java placement-preparation

Last synced: 07 May 2025

https://github.com/gab-studios/gab-cmdline

A GABStudios Java library to help with command line parsing.

command gab-cmdline java line parser parser-library

Last synced: 03 Oct 2025

https://github.com/yiding-he/redisfx

A JavaFX Client for Redis

client gui java javafx redis

Last synced: 27 Oct 2025

https://github.com/zhoushengsheng/ci6226-ira-g14

Assignment for CI6226 Information Retrieval & Analysis at NTU in Singapore.

java lucene search-engine spring-boot

Last synced: 16 Jan 2026

https://github.com/astavie/from-the-ground-up

A Minecraft mod that adds research

ftgu java minecraft minecraftforge mod

Last synced: 27 Sep 2025

https://github.com/rodrigorvsn/buda

📚️ My Software Engineer arsenal with Data Structures, Algorithms, Design Patterns, Concepts, etc.

algorithms competitive-programming data-structures-and-algorithms design-patterns docsify java python software-engineering solid tdd typescript vitest

Last synced: 18 Aug 2025

https://github.com/hezhii/algorithm

学习《算法》(第四版)过程中的一些笔记、练习等。

algorithm java

Last synced: 10 Aug 2025

https://github.com/jain131102/neocolab

CSE3004_Design and Analysis of Algorithms Lab_ NEOCOLAB

daa java neocolab vit

Last synced: 02 Aug 2025

https://github.com/jetty-project/http2-demo

Demonstration of HTTP/2 Push using Jetty Server

http2 http2-push http2-server java java-11 jetty

Last synced: 05 Oct 2025

https://github.com/warlord27/javaprob

JavaProb is a comprehensive repository dedicated to solving a wide range of tricky and concept-rich Java problems. Whether you're preparing for technical interviews, enhancing your problem-solving skills, or just looking to dive deeper into Java’s core and advanced topics, this repository is designed with you in mind.

dsa dsa-algorithm dsa-practice java java19 java21 java8 problem-solving-algorithms question-answering

Last synced: 13 Aug 2025

https://github.com/openjdk/jmc7

https://openjdk.org/projects/jmc

java jmc mission-control openjdk

Last synced: 05 Oct 2025

https://github.com/apache/servicemix-utils

Mirror of Apache Servicemix utils

java network-client network-server osgi scala servicemix xml

Last synced: 25 Aug 2025

https://github.com/baghelamit/video-stream-classification

Video Stream Classification

java kafka opencv spark tensorflow

Last synced: 23 Apr 2025