Showing 244 open source projects for "java examples"

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  • 1
    EasyExcel

    EasyExcel

    Lightweight Java library developed by Alibaba for reading and writing

    EasyExcel is a Java library focused on reading and writing Excel files with very low memory usage, making it suitable for large datasets that overwhelm traditional APIs. It uses streaming/event-driven parsing to avoid loading entire workbooks into memory, and it maps rows to Java objects via simple annotations. Writers support multiple sheets, custom styles, merged cells, and template-based filling so production reports remain maintainable. The API emphasizes developer ergonomics: callbacks...
    Downloads: 15 This Week
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  • 2
    S3Mock

    S3Mock

    A simple mock implementation of the AWS S3 API startable as Docker

    S3Mock is a lightweight server that implements parts of the Amazon S3 API. It has been created to support local integration testing by reducing infrastructure dependencies. The S3Mock server can be started as a standalone Docker container, using Test containers, JUnit4, JUnit5 and TestNG support, or programmatically.
    Downloads: 5 This Week
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  • 3
    Fabric API

    Fabric API

    Essential hooks for modding with Fabric

    Essential hooks for modding with Fabric. Fabric API is the library for essential hooks and interoperability mechanisms for Fabric mods. Examples include exposing functionality that is useful but difficult to access for many mods such as particles, biomes and dimensions. Adding events, hooks and APIs to improve interoperability between mods. Essential features such as registry synchronization and adding information to crash reports. An advanced rendering API designed for compatibility with...
    Downloads: 26 This Week
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  • 4
    sbt

    sbt

    sbt, the interactive build tool

    Define your tasks in Scala. Run them in parallel from sbt's interactive shell. sbt is built for Scala and Java projects. It is the build tool of choice for 93.6% of the Scala developers (2019). One of the examples of a Scala-specific feature is the ability to cross-build your project against multiple Scala versions. build.sbt is a Scala-based DSL to express parallel processing task graph. Typos in build.sbt will be caught as a compilation error.
    Downloads: 16 This Week
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  • 5
    JavaFamily

    JavaFamily

    Java Interview + Java Study Guide

    JavaFamily is a large educational repository that aggregates knowledge, tutorials, and resources related to Java development and backend engineering. It covers a wide range of topics including core Java, Spring framework, microservices, distributed systems, and performance optimization. The project is designed to help developers build a strong foundation while also exploring advanced concepts used in enterprise environments. It includes explanations, code samples, and curated resources that...
    Downloads: 1 This Week
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  • 6
    Bank of Anthos

    Bank of Anthos

    Retail banking sample application showcasing Kubernetes

    Bank of Anthos is a sample HTTP-based web app that simulates a bank's payment processing network, allowing users to create artificial bank accounts and complete transactions. Google uses this application to demonstrate how developers can modernize enterprise applications using Google Cloud products, including: Google Kubernetes Engine (GKE), Anthos Service Mesh (ASM), Anthos Config Management (ACM), Migrate to Containers, Spring Cloud GCP, Cloud Operations, Cloud SQL, Cloud Build, and Cloud...
    Downloads: 13 This Week
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  • 7
    SOFAJRaft

    SOFAJRaft

    A production-grade java implementation of RAFT consensus algorithm

    SOFAJRaft is a production-level, high-performance Java implementation based on the RAFT consistency algorithm that supports MULTI-RAFT-GROUP for high-load, low-latency scenarios. With SOFAJRaft you can focus on your business area. SOFAJRaft handles all RAFT-related technical challenges. SOFAJRaft is very user-friendly, which provides several examples, making it easy to understand and use.
    Downloads: 3 This Week
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  • 8
    Rakudo

    Rakudo

    Rakudo – Raku on MoarVM, JVM, and JS

    This is Rakudo, a Raku Programming Language compiler for the MoarVM, JVM, and Javascript virtual machines. Rakudo is distributed under the terms of the Artistic License 2.0. For more details, see the full text of the license in the file LICENSE. This directory contains only the Rakudo compiler itself; it does not contain any of the modules, documentation, or other items that would normally come with a full Raku distribution. If you're after more than just the bare compiler, please download...
    Downloads: 4 This Week
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  • 9
    CodeGuide

    CodeGuide

    This repository is a collection of the author, Xiao Fuge

    ...The repository emphasizes practical coding skills, providing examples that can be directly applied in professional software engineering. It also functions as a guide for both junior developers who want to grow into architects and experienced engineers who seek deeper mastery of system design. By combining educational material with hands-on examples, CodeGuide bridges the gap between theoretical learning and practical application in enterprise-level Java development.
    Downloads: 0 This Week
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  • 10
    docker-maven-plugin

    docker-maven-plugin

    Maven plugin for running and creating Docker images

    This is a Maven plugin for building Docker images and managing containers for integration tests. It works with Maven 3.0.5 and Docker 1.6.0 or later.
    Downloads: 5 This Week
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  • 11
    Item-NBT-API

    Item-NBT-API

    Add custom NBT tags to Items/Tiles/Entities without NMS

    The NBT API allows you to add custom NBT tags to Itemstacks, TileEntities, and Entities, or modify existing ones. It completely uses reflections to interact with NMS code and works with all the latest versions. On server start the plugin checks all reflections.
    Downloads: 2 This Week
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  • 12
    TwelveMonkeys

    TwelveMonkeys

    Additional plug-ins and extensions for Java's ImageIO

    TwelveMonkeys ImageIO provides extended image file format support for the Java platform, through plugins for the javax.imageio. package. The main goal of this project is to provide support for formats not covered by the JRE itself. Support for these formats is important, to be able to read data found "in the wild", as well as to maintain access to data in legacy formats. As there is lots of legacy data out there, we see the need for open implementations of readers for popular formats.
    Downloads: 2 This Week
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  • 13
    jbang

    jbang

    Create, edit and run self-contained source-only Java programs

    jbang lets students, Educators and Professional Developers create, edit, and run self-contained source-only Java programs with unprecedented ease. JBang goes beyond more than just easy scripting; you can use jbang to launch any kind of Java application or library packaged as a jar available locally, via http/https download or in a Maven repository. You can even setup catalogs of scripts and publish them to Github, Gitlab or Bitbucket, see AppStore for examples.
    Downloads: 0 This Week
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  • 14
    Apache MINA SSHD

    Apache MINA SSHD

    A comprehensive Java library for client- and server-side SSH

    Apache MINA sshd is a comprehensive Java library for client- and server-side SSH. Apache MINA SSHD is a 100% pure java library to support the SSH protocols on both the client and server side. It does not aim at being a replacement for the SSH client or SSH server from Unix operating systems, but rather provides support for Java based applications requiring SSH support.
    Downloads: 0 This Week
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  • 15
    Jenkins-Zero-To-Hero

    Jenkins-Zero-To-Hero

    Install Jenkins and configure Docker

    Jenkins-Zero-To-Hero is a hands-on learning repository that teaches Jenkins from scratch, starting with installation and moving all the way to building end-to-end CI/CD pipelines. The course is designed around running Jenkins on an AWS EC2 instance, guiding you through installing Java, configuring Jenkins, and exposing it safely via security group rules. From there, it covers installing plugins like Docker Pipeline, configuring Docker as an agent, and wiring up multi-stage and multi-agent pipelines. The folder structure includes practical examples such as java-maven-sonar-argocd-helm-k8s and python-jenkins-argocd-k8s, showing real CI/CD flows that build, test, analyze, containerize, and deploy apps to Kubernetes via Argo CD in a GitOps style. ...
    Downloads: 0 This Week
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  • 16
    Aurora libraries

    Aurora libraries

    Building modern, elegant and fast desktop Compose applications

    Aurora is a collection of libraries for writing modern, elegant, and fast desktop Compose applications based on the Ephemeral design system. It is built with Java 11 and runs on Java 11 and later.
    Downloads: 0 This Week
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  • 17
    PartiQL Lang Kotlin

    PartiQL Lang Kotlin

    PartiQL libraries and tools in Kotlin.

    This is a Kotlin implementation of the PartiQL specification. PartiQL is based on SQL-92 and has added support for working with schemaless hierarchical data. PartiQL’s extensions to SQL are easy to understand, treat nested data as first-class citizens, and compose seamlessly with each other and SQL. This repository contains an embeddable reference interpreter, test framework, and tests for PartiQL in Kotlin.
    Downloads: 11 This Week
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  • 18
    KotlinPoet

    KotlinPoet

    A Kotlin API for generating .kt source files

    KotlinPoet is a Kotlin and Java API for generating .kt source files. Source file generation can be useful when doing things such as annotation processing or interacting with metadata files (e.g., database schemas, protocol formats). By generating code, you eliminate the need to write boilerplate while also keeping a single source of truth for the metadata.
    Downloads: 7 This Week
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  • 19
    Netty

    Netty

    An event-driven asynchronous network application framework

    Netty is an asynchronous, event-driven networking framework for the JVM that simplifies building high-performance clients and servers. It wraps Java NIO with a channel/handler pipeline model, enabling clean composition of codecs, TLS, and application logic with minimal overhead. Its ByteBuf abstractions, buffer pooling, and zero-copy techniques help reduce GC pressure and improve throughput under heavy I/O. Support for common protocols—HTTP/1.1, HTTP/2, WebSocket, and raw TCP/UDP—makes it a...
    Downloads: 12 This Week
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  • 20
    Pitest

    Pitest

    State of the art mutation testing system for the JVM

    PIT is a state of the art mutation testing system, providing gold standard test coverage for Java and the jvm. It's fast, scalable and integrates with modern test and build tooling. Faults (or mutations) are automatically seeded into your code, then your tests are run. If your tests fail then the mutation is killed, if your tests pass then the mutation lived. As it is actually able to detect whether each statement is meaningfully tested, mutation testing is the gold standard against which...
    Downloads: 12 This Week
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  • 21
    Kotter

    Kotter

    A declarative, Kotlin-idiomatic API for writing dynamic console app

    Kotter (a KOTlin TERminal library) aims to be a relatively thin, declarative, Kotlin-idiomatic API that provides useful functionality for writing delightful console applications. It strives to keep things simple, providing a solution a bit more opinionated than making raw println calls but way less featured than something like Java Curses.
    Downloads: 6 This Week
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  • 22
    Apache Shiro

    Apache Shiro

    Apache Shiro

    Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. With Shiro’s easy-to-understand API, you can quickly and easily secure any application, from the smallest mobile applications to the largest web and enterprise applications.
    Downloads: 0 This Week
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  • 23
    lancet

    lancet

    A comprehensive, efficient, and reusable util function library of Go

    Lancet is a comprehensive, efficient, and reusable util function library of go. Inspired by the java apache common package and lodash.js. support 600+ go util functions. includes string, slice, datetime, net, crypto, concurrency, etc. Each module is designed as a package with no coupling between modules. Only depends on two kinds of libraries, go standard library and golang.org/x. Well structured, test for every exported function.
    Downloads: 8 This Week
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  • 24
    SyncLite

    SyncLite

    Build Anything Sync Anywhere

    SyncLite is an open-source, low-code, comprehensive relational data consolidation platform enabling developers to rapidly build data-intensive applications for edge, desktop and mobile environments. SyncLite enables real-time, transactional data replication and consolidation from various sources including edge/desktop applications using popular embedded databases (SQLite, DuckDB, Apache Derby, H2, HyperSQL), data streaming applications, IoT message brokers, traditional database systems(ETL)...
    Downloads: 9 This Week
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  • 25
    Kotlin JDSL

    Kotlin JDSL

    Kotlin library that makes it easy to build and execute queries

    Kotlin JDSL is a Kotlin library that makes it easy to build a query without a generated metamodel. There are many libraries that use an annotation processing tool (APT) to do the job. However, with the APT, you have to recompile whenever the name or type of field in an entity or a table class is changed. Kotlin JDSL provides a domain-specific language (DSL) based on KClass and KProperty to help you easily build queries without such inconveniences from the APT. Kotlin JDSL does not provide an...
    Downloads: 14 This Week
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