Showing 60 open source projects for "small java project with source code"

View related business solutions
  • Build on Google Cloud with $300 in Free Credit Icon
    Build on Google Cloud with $300 in Free Credit

    New to Google Cloud? Get $300 in free credit to explore Compute Engine, BigQuery, Cloud Run, Vertex AI, and 150+ other products.

    Start your next project with $300 in free Google Cloud credit. Spin up VMs, run containers, query exabytes in BigQuery, or build AI apps with Vertex AI and Gemini. Once your credits are used, keep building with 20+ products with free monthly usage, including Compute Engine, Cloud Storage, GKE, and Cloud Run functions. Sign up to start building right away.
    Start Free Trial
  • Build AI Apps with Gemini 3 on Vertex AI Icon
    Build AI Apps with Gemini 3 on Vertex AI

    Access Google’s most capable multimodal models. Train, test, and deploy AI with 200+ foundation models on one platform.

    Vertex AI gives developers access to Gemini 3—Google’s most advanced reasoning and coding model—plus 200+ foundation models including Claude, Llama, and Gemma. Build generative AI apps with Vertex AI Studio, customize with fine-tuning, and deploy to production with enterprise-grade MLOps. New customers get $300 in free credits.
    Try Vertex AI Free
  • 1
    Source Code Hunter

    Source Code Hunter

    Source code analysis of Spring, MyBatis, Redis, Netty, and more

    Source Code Hunter is an open source project by Doocs that focuses on analyzing and explaining the source code of widely used Java frameworks and libraries. It helps developers deepen their understanding of internal implementations, design patterns, and performance optimizations by walking through actual codebases such as Spring, MyBatis, Netty, Tomcat, and others.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 2
    DSA Bootcamp Java

    DSA Bootcamp Java

    This repository consists of the code samples, assignments, and notes

    DSA Bootcamp Java is an open source educational repository created by Kunal Kushwaha to teach Data Structures and Algorithms (DSA) using Java. It is designed as a structured bootcamp, covering fundamental concepts to advanced problem-solving techniques. The project provides explanations, exercises, assignments, and practice problems, making it useful for both beginners and intermediate learners who want to strengthen their Java and algorithmic skills. The repository is organized into...
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    LeetCode Book

    LeetCode Book

    Comprehensive study guide for coding interviews

    LeetCode-Book is a comprehensive study guide for coding interviews that consolidates algorithm patterns, data-structure templates, and worked LeetCode solutions. It organizes problems by topic—arrays, linked lists, stacks/queues, trees/graphs, dynamic programming, greedy, backtracking, and math—so you can study systematically. Explanations are concise but intentional, highlighting why a pattern fits, how to reason about boundary cases, and the time/space trade-offs. Many entries include...
    Downloads: 7 This Week
    Last Update:
    See Project
  • 4
    Interviews

    Interviews

    Comprehensive computer science and interview preparation guide

    Interviews is an open source repository designed as a comprehensive guide to preparing for technical interviews, with a strong focus on computer science fundamentals and algorithmic problem solving. Created by Kevin Naughton Jr., the project compiles detailed notes, explanations, and code implementations that cover core areas tested in software engineering interviews. The repository emphasizes topics such as data structures, algorithms, system design, operating systems, databases, and...
    Downloads: 2 This Week
    Last Update:
    See Project
  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
    Try it Free
  • 5
    Mall Learning

    Mall Learning

    Tutorial and sample-code repository

    mall-learning is a tutorial and sample-code repository that explores an entire e-commerce system architecture from backend to frontend. The associated “mall” project (with tens of thousands of stars) is an open-source full-stack e-commerce platform built with Spring Boot, MyBatis, Elasticsearch, RabbitMQ, Redis, MongoDB, MySQL and containerized via Docker. The learning repository breaks down architecture, business modules (products, orders, marketing, members), deployment (Linux, Docker,...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Wenku8 Android
    Light Novel Library (Wenku8.com) A third-party public welfare app, a Material Design-styled light novel reader, with no ads, no earnings, and the smallest installation package on the market, which started in 2014. If you want to use search and favorites functions, please log in first. This app is completely open source. Started in 2014 with Material Design style, no ads, no profit, light novel reader with the smallest installation package on Google Play . At present, in addition to the API...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Java Modeling Language (JML)
    This sourceforge site for the project is now DEPRECATED and not updated. All current work and new releases are on github: https://github.com/OpenJML/OpenJML. The Java Modeling Language (JML) is a behavioral interface specification language that can be used to specify the behavior of Java modules (as in design by contract -- DBC). It has many tools to do assertion checking, unit testing, etc. The principal current tool of the project is OpenJML -- cf. https://www.openjml.org, with...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8

    Prime number ( primenumbers )

    Benchmark for 50 000 000 prime numbers as single and multicore

    Simple source files and compiled JAR Java programs, for benchmark 50 000 000 cycle finding prime numbers. On Intel(R) Core(TM) i5-8600K CPU, Windows 10 20H2, i have 39 second on single core and 7,6 second on multi core. (PS: C++ multicore 6 second). Added C files for gcc compiler in Windows 10 and for Xcode C command line project in MacOS ( tested on Mac mini M2 with single core 16 to 25 sec and multicore 2,3 to 5 second by compiler -O switch).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    UMHDL

    UMHDL

    Integrated Development Environment (IDE) for learning HDL

    UMHDL is an educational Integrated Development Environment (IDE) intended for learning digital designing with programmable logic devices using Hardware Description Languages (HDL) through simulation. It is an open-source application created at the Miguel Hernández University (UMH). The aim for the UMHDL development was to have a graphical application that allows learning the VHDL language without licensing restrictions (using some existing open-source tools) and requiring few resources. So,...
    Downloads: 1 This Week
    Last Update:
    See Project
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 10
    The Art of Programming

    The Art of Programming

    A collection of practical tips can be found at the bottom of this page

    The Art of Programming (Second Edition) is a curated collection of programming problems and solutions originally derived from the Microsoft 100 Interview Questions blog series, later refined into a long-running tutorial and ultimately a published book. Created by July, the series began in 2010 and has since evolved into an in-depth exploration of algorithmic thinking, data structures, and coding interview preparation. The repository brings together 42 classic programming problems from the...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Spring and Hibernate for Beginners

    Spring and Hibernate for Beginners

    Source code for the course: Spring and Hibernate for Beginners

    This repository contains code and resources for learning Spring and Hibernate, tailored to beginners looking to understand Java-based web development. Here is a Spring Boot Learning Path and Roadmap to help you learn more about Spring Boot. These are links to luv2code courses on Udemy. You can purchase the courses to further your studies.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    LeetCode Animation

    LeetCode Animation

    Demonstrate all the questions on LeetCode in the form of animation

    LeetCodeAnimation is an educational open source project by MisterBooo that visually demonstrates algorithm problems from LeetCode through animations. The goal of the project is to help learners understand complex algorithmic concepts intuitively by showing step-by-step animated explanations instead of relying solely on static code or text. Each animation corresponds to a specific problem and illustrates how data structures and algorithms operate dynamically, making it easier to grasp their...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13

    Java Address Book - JAddressBook

    A small address book written in Java

    A small address book written in Java. This project's goal is to demonstrate the creation of a small database based application (CRUD application) in the most simple way. In a deeper use, this project demonstrates the impact of an extreme normalization of the ER schema which results in an augmentation of database tables number.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Bridge Designer and Contest

    Bridge Designer and Contest

    A national virtual bridge engineering contest for kids of all ages.

    **Unfortunately, the Bridge Contest is no longer operational. We hope the code base will be of use to others with similar projects in mind.** A national virtual bridge engineering contest with prizes for middle and high school kids, grades 6 to 12, but anyone can enter for fun. Based on the award-wining Bridge Designer client software, now open source through this project. Web site infrastructure supports worldwide participation in qualifying and semifinal rounds with a tiny...
    Leader badge
    Downloads: 3,366 This Week
    Last Update:
    See Project
  • 15
    Busy Coder's Guide Android Development

    Busy Coder's Guide Android Development

    Source code to omnibus edition of the book

    The Busy Coder's Guide to Android Development is a book covering Android application development, from basics through advanced capabilities. It is updated several times a year and is available through the Warescription program. Subscribers also have access to office hours chats and other benefits. This repository contains the source code for the hundreds of sample apps profiled in the book. These samples are updated as the book is, with git tags applied to tie sample code versions to book...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16

    AFE-Web

    Antike Fundmünzen Europa

    Cooperation project between Goethe-University and Römische-Germanische Kommission. Will bring numismatic data online and tries to link the data with existing ones. ... resulting project code is planed to be open source!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    KAREL 3D

    KAREL 3D

    Learning programming language for kids

    This is learning programming language for children Karel-3D. By words from LightBot: "Get kids hooked on coding with minutes!" Created by Karel 3D from the 8-bit microcomputer PMD 85-2 in 1986. His later version of Karel the Robot in 3D, created first in the Slovak Republic. JavaScript variant include only one small HTML file tested and works on all devices with keyboard and full JavaScript support in internet browser, or alternative pre-compiled JAVA V8 .jar file with webEngine and...
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    JCSprout

    JCSprout

    Basic, concurrent algorithm

    JCSprout is a curated learning path for Java engineers that mixes concise notes, diagrams, and runnable examples to cover core computer science and JVM topics. It walks readers through data structures and algorithms, networking fundamentals, Java concurrency, JVM memory model and GC, and common interview problem patterns. The repository emphasizes understanding over memorization, linking conceptual summaries with small code artifacts that can be compiled and profiled. It also highlights best...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19

    Web-CAT

    Open-source automated grading of programming assignments

    Web-CAT is a plug-in based web application for automatically grading programming assignments in many programming languages. This project also provides Eclipse plugins for electronic submission and feedback services directly from the Eclipse IDE. We now use github for source code control (https://github.com/web-cat), although all file releases are still provided here through SourceForge. The CVS repository here is for archival purposes only.
    Leader badge
    Downloads: 6 This Week
    Last Update:
    See Project
  • 20

    QuickWeb

    This tool can be used to create quickly the skeleton of a web site.

    QuickWeb is a tool to quickly create a skeleton of a web site. The tool developed in Java and to create a web site, there's no need to manipulate HTML in the beginning. All you have to do is to write a simple Java code that will generate a web site of several pages. Created to help me with documenting different Sourceforge project, QuickWeb does not generate, for now, any CSS or JS code, but, it can generate the skeleton and the static content of a website composed of several web pages and...
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    Object Graph Visualizer

    Object Graph Visualizer

    A modeling tool for software engineers (OO)

    Object Graph Visualizer is a tool primarily meant to be used in CS courses to help new students understand the Object Oriented paradigm and patterns. Classes and objects - that can be part of a software project - are visualised in 3D: The classes stay In the xz-plane in form of an UML class diagram. Directly above in the y-axis objects can be instantiated as an object diagram. Classes can be connected with all sorts of relations (Associations, Compositions, Generalization, etc.), objects...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    iRevise Android App

    iRevise Android App

    Simple android app for students to quickly makes notes and revise!

    Well yeah, we all sweat trying to learn those nasty chemical formulae, or the weird biological names or maybe some antonyms and synonyms.Whatever it is anything which can make us learn our books better is just a boon. And when it happens automatically, its just amazing. This little appdoes exactly that. Now quickly make your own small notes for things you feel are difficult to learn.Save in the tiny I revise app,and add the widget. And it makes the notes available on your home screen so they...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    LASAD

    LASAD

    LASAD is a research based cooperative online argumentation system

    The LASAD (Learning to Argue: Generalized Support Across Domains) system has been developed to support online argumentation and learning argumentation in single or cooperative argumentation sessions. Since the LASAD system has been used in several studies and learning sessions world wide we provide the code to allow existing and future users to enhance and to customize the system for their needs. LASAD has been created in a research project funded by the German Research Foundation...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Biogenesis X Mod

    Biogenesis X Mod

    Mod of the evolution simulation and artificial life program Biogenesis

    This project is a modification of the original evolution simulation & artificial life project by Joan Queralt Molina: https://sourceforge.net/projects/biogenesis/ In both, the original project and this modification, 2-dimensional organisms consisting of line segments interact with each other, reproduce and evolve in time. Compared to the original project, this modification explores the following features: * alternative mutation mechanisms * an alternative stress-based aging...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    MathQuizGame

    MathQuizGame

    A math flashcard-like game

    Practice math by adding, subtracting, or multiplying randomly generated numbers. To view the source code of the project, go to https://github.com/tenny1028/Math-Quiz-Game
    Downloads: 1 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • Next
MongoDB Logo MongoDB