Showing 244 open source projects for "core java"

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  • 1
    Pixeval

    Pixeval

    Wow. Yet another Pixiv client!

    Pixeval is a third-party proxy-free P station client developed by me as an amateur. The UI is implemented using Windows Presentation Foundation , based on .NET Core 3.0 , and supports Windows 7-10 (planning to cancel support other than Win10), and implements most of the The browsing function and many enhancements have been made. It has been open sourced on Github based on the AGPL protocol . The project was conceived in 2018. At that time, the api of the P station was written in Java. At that time, it could also be accessed by modifying the hosts method. ...
    Downloads: 16 This Week
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  • 2
    Standard Webhooks

    Standard Webhooks

    The Standard Webhooks specification

    Standard Webhooks is a community-driven specification and set of open-source tools designed to make webhooks consistent, secure, and interoperable across providers. The project defines strict guidelines covering aspects like signature formats, headers, timestamps, replay protection, and forward compatibility. It includes reference implementations for signature verification and signing across multiple languages such as Python, JavaScript/TypeScript, Go, Rust, Ruby, PHP, C#, Java, and Elixir,...
    Downloads: 0 This Week
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  • 3
    Cats Effect

    Cats Effect

    The pure asynchronous runtime for Scala

    Cats-Effect is a high-quality functional programming library for Scala that provides a principled way to represent and manage side effects, particularly asynchronous and concurrent computations. It is part of the broader Typelevel ecosystem and builds on the abstractions from Cats (such as Functor, Monad, etc.). The core abstraction is the IO type (or effect types more generally), which encodes effectful computations in a pure, referentially transparent way. Cats-Effect offers capabilities like deferred execution, cancellation, resource safety (Resource), fiber concurrency (lightweight threads), and interoperation with underlying runtime platforms (JVM, Java concurrency, etc.). ...
    Downloads: 6 This Week
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  • 4
    Gatling Studio

    Gatling Studio

    Desktop app that helps you craft Gatling load-testing simulations

    Gatling Studio is a native desktop application created to simplify the creation of Gatling load-testing simulations from real browser traffic. Instead of hand-writing scenarios in Scala or Java from scratch, you use Gatling Studio to drive a Chromium-based browser through a typical user journey. The tool captures all HTTP and HTTPS requests and responses, saves them as a HAR file, and then automatically converts that data into a structured Gatling project with groups, pauses, and exec blocks. It includes logic to filter out noisy or irrelevant requests such as font files, analytics beacons, and static assets, so the generated scenario focuses on the core business interactions. ...
    Downloads: 0 This Week
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  • 5
    Android Interview Questions

    Android Interview Questions

    Your Cheat Sheet For Android Interview

    This repository is a comprehensive study guide for Android interviews, organized to cover the platform from fundamentals to advanced topics. It includes explanations and Q&A on the Android app lifecycle, activities and fragments, services, broadcast receivers, content providers, and the build system. Modern practices are addressed as well—Kotlin language features, coroutines, Jetpack components, MVVM/MVI architecture, dependency injection, and testing strategies. Performance and reliability...
    Downloads: 0 This Week
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  • 6
    Micrometer

    Micrometer

    App observability facade for the most popular observability tools

    Micrometer provides a simple facade over the instrumentation clients for the most popular observability systems, allowing you to instrument your JVM-based application code without vendor lock-in. Think SLF4J, but for observability. Micrometer provides vendor-neutral interfaces for timers, gauges, counters, distribution summaries, and long task timers with a dimensional data model that, when paired with a dimensional monitoring system, allows for efficient access to a particular named metric...
    Downloads: 0 This Week
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  • 7
    Scalatra

    Scalatra

    Tiny Scala high-performance, async web framework

    Scalatra is a lightweight, high-performance micro web framework written in Scala, inspired by the Ruby framework Sinatra. Its goal is to provide a minimal but expressive foundation for building web applications or REST APIs in Scala without the verbosity or steep learning curve of larger frameworks. It supports asynchronous request handling, routing, filters, content negotiation, and easy integration with templating, JSON libraries, and other web middleware. Being unopinionated, it lets...
    Downloads: 0 This Week
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  • 8
    Gideros

    Gideros

    Gideros Release version

    ...Apart from supporting multiple platforms, Gideros also provides automatic screen scaling and automatic selection of proper image resolution, which makes supporting different screen resolutions, aspect ratios, and universal projects an easy task. You can easily extend the core with plugins. Import your existing (C, C++, Java or Obj-C) code, bind to Lua, and interpret them directly. Dozens of open-source plugins are already developed and ready to use: ads, in-app purchases, physics for 2d or 3d, Steam integration, and many more.
    Downloads: 1 This Week
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  • 9
    jd-gui-duo

    jd-gui-duo

    A 2-in-1 JAVA decompiler based on JD-CORE v0 and v1 supporting 3rd par

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    Downloads: 61 This Week
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  • 10
    Vector Pascal is a language targeted at SIMD multi-core instruction-sets such as the AVX and SSE2 or x86-64-v3. It has a SIMD compiler which supports parallel vector operations, loop unrolling, common sub expression removal etc. It is implemented in Java.
    Downloads: 11 This Week
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  • 11
    ESignPDF

    ESignPDF

    Sign PDF with Digital Signature Certificate

    Brought to you by parvesh88 System Requirements 1. A Computer running Windows 7 Service Pack 1 or higher 2. Java Runtime Environment (JRE) 8 or higher if JRE is not installed on your Computer, then download and install from here JRE 8 for Windows x86 -> https://www.azul.com/core-post-download/?endpoint=zulu&uuid=55abea0c-2aa5-4316-aafb-e90847f6ee21 JRE 8 for Windows x64 -> https://www.azul.com/core-post-download/?endpoint=zulu&uuid=5a34da4a-1821-4c79-a57c-7fce38d102c2 JRE 8 for Mac OS -> https://www.azul.com/core-post-download/?...
    Downloads: 4 This Week
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  • 12
    Interview_Question_for_Beginner

    Interview_Question_for_Beginner

    Technical-Interview guidelines written for studying programming

    Interview_Question_for_Beginner is a technical-interview study repository created for people beginning careers in software development. It organizes common interview knowledge into structured computer-science, programming-language, and specialization sections. Core topics include data structures, networking, operating systems, databases, design patterns, algorithms, and general development concepts. Language-specific material covers Java, JavaScript, and Python. Separate sections address frontend development, iOS, and machine learning. The repository also collects real interview questions, reverse-interview suggestions for candidates, learning references, and community contributions through issues and pull requests.
    Downloads: 2 This Week
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  • 13
    Athena Java

    Athena Java

    Java Backend Knowledge Graph

    Athena is a Chinese-language Java backend knowledge map designed to help beginners build a broad and organized technical foundation. It collects articles, interview notes, tutorials, summaries, diagrams, and practical examples rather than providing one executable application. Core coverage includes Java fundamentals, collections, concurrency, the JVM, Spring, MyBatis, Hibernate, JDBC, MySQL, Redis, and message queues.
    Downloads: 4 This Week
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  • 14
    JEnterpriseServiceBus

    JEnterpriseServiceBus

    Java-based Open Source extensible ESB

    ...Extensibility is almost a key feature allowing any user to model and mostly generate plugins complementing core features as needed.
    Downloads: 0 This Week
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  • 15
    ASAF - Another Swing App Framework

    ASAF - Another Swing App Framework

    an OSGi-based Swing Application Framework

    Downloads: 1 This Week
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  • 16
    PI-Based Image Encoder / Converter

    PI-Based Image Encoder / Converter

    Python code able to convert / compress image to PI (3.14, π) Indexes

    Image processing tool that encodes pixel data as indices within the first 16.7 million digits of PI (π). Features high-performance Numba-accelerated search and a signature 'film-grain' aesthetic upon reconstruction. ZIP also include 16 MB file with 16,7 mil numbers of PI Benchmark(Single-Thread): Hardware & Environment Apple Silicon: Apple M2 (Mac mini/MacBook) x86_64 Platform: Intel Core Ultra 5 225F (Arrow Lake, 10 Cores) OS 1: Fedora 43 (GNOME) OS 2: Windows 11 Pro...
    Downloads: 0 This Week
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  • 17

    RecordEditor

    Editor for Fixed Width, Csv and Existing Xml files.

    The RecordEditor is a Data File editor for Flat Files (delimited and fixed field position). It supports Unix / PC / Legacy (e.g. Mainframe) file formats, both Text and binary files. The Editor uses a Record-Layout description to format the files. This is ideal for Fixed width (Text or Binary) files, Cobol Data Files, Mainframe files and complicated Csv files. Cobol Copybooks can be used to format Cobol Data files. As well as an editor, The following utilities are supplied * Formatted...
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    Downloads: 33 This Week
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  • 18

    beanui

    generic bean/entity, server side rendered, single page web application

    framework to create a modern application with web gui through java bean descriptors
    Downloads: 3 This Week
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  • 19

    LegacyInsight

    Legacy reverse engineering tool

    LegacyInsight is an AI-powered reverse engineering platform that transforms legacy software systems into comprehensible business logic. Using cutting-edge GenAI, it analyzes legacy and extracts core operations, business rules, and data transformations—all translated into natural language. LegacyInsight supports enterprise-grade systems built on Java, COBOL, NET and other legacy stacks, helping organizations reclaim understanding of business-critical code.
    Downloads: 0 This Week
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  • 20
    COLA

    COLA

    Clean object-oriented & layered architecture

    COLA is the abbreviation of Clean Object-Oriented and Layered Architecture, which stands for "Clean Object-Oriented and Layered Architecture." At present, COLA has developed to COLA 4.0. COLA is divided into two parts, COLA architecture and COLA components. The meaning of architecture is the structure of elements. The COLA architecture was born for this purpose, and its core responsibility is to define a good application structure and provide the best practice of the best application...
    Downloads: 0 This Week
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  • 21

    Wheefun Graphics Library

    Portable Graphics Primitives

    The Wheefun Graphics Library (WFGFX) library implements basic graphics primitives that are designed to be used portably between different backends. The basic implementation includes support for the C and C++ programming languages. WFGFX at its core provides interfaces for manipulating both raster and vector images through an abstract graphics context; in many cases, several low-level primitives exist for more direct manipulation. It is designed to be easily ported to other programming environments like .NET and the Java Virtual Machine, making the codebase reusable as a result.
    Downloads: 0 This Week
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  • 22
    Rifidi is a middleware and development platform for RFID. With Rifidi you can prototype an RFID application down to the core RFID Hardware and using Rifidi Edge you can easily develop business rules to turn RFID events into real business applications.
    Downloads: 11 This Week
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  • 23
    Spring Data R2DBC

    Spring Data R2DBC

    Provide support to increase developer productivity in Java

    Provide support to increase developer productivity in Java when using Reactive Relational Database Connectivity. Uses familiar Spring concepts such as a DatabaseClient for core API usage and lightweight repository-style data access. The primary goal of the Spring Data project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud-based data services.
    Downloads: 4 This Week
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  • 24
    ...When using the manual download from there, you also need to include the following jar files in your project: juel-api-2.2.7.jar, juel-impl-2.2.7.jar, commons-beanutils-core-1.8.3.jar and commons-logging-1.1.1.jar API: http://colllib.sourceforge.net/apidoc/ NEW: colllib switches to Java 8 starting with colllib 2.0. If you depend on an older VM-version, please stick to colllib-1.6.
    Downloads: 0 This Week
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  • 25
    DDDplus

    DDDplus

    A lightweight flexible development framework

    DDDplus, originally cp-ddd-framework(cp means Central Platform, lightweight flexible development framework for complex business architecture. A set of lightweight business mid-stage development framework, based on DDD thinking, is committed to the precipitation and inheritance of business assets, comprehensively solves the expansion problem of complex business scenarios, realizes the core elements of mid-stage, and empowers mid-stage construction. Integrating the complex ecological...
    Downloads: 0 This Week
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