Showing 373 open source projects for "simple java code"

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  • 1
    Vavr

    Vavr

    Object-functional library that runs with Java 8+

    Vavr core is a functional library for Java. It helps to reduce the amount of code and to increase the robustness. A first step towards functional programming is to start thinking in immutable values. Vavr provides immutable collections and the necessary functions and control structures to operate on these values. The results are beautiful and just work. The Vavr binaries can be found on Maven Central.
    Downloads: 2 This Week
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  • 2
    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.
    Downloads: 7 This Week
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  • 3
    Truth

    Truth

    Fluent assertions for Java and Android

    Truth is a library for performing assertions in tests. Truth makes your test assertions and failure messages more readable. Similar to AssertJ, it natively supports many JDK and Guava types, and it is extensible to others. Truth is owned and maintained by the Guava team. It is used in the majority of the tests in Google’s own codebase.
    Downloads: 2 This Week
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  • 4
    Fetch for Android

    Fetch for Android

    The best file downloader library for Android

    Fetch is a simple, powerful, customizable file download manager library for Android. Simple and easy to use API. If you are saving downloads outside of your application's sandbox, you will need to add the following storage permissions to your application's manifest. For Android SDK version 23(M) and above, you will also need to explicitly request these permissions from the user. Continuous downloading in the background. Concurrent downloading support. Ability to pause and resume downloads....
    Downloads: 5 This Week
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    MongoDB JVM Driver

    MongoDB JVM Driver

    The MongoDB drivers for Java, Kotlin, and Scala

    Welcome to the documentation site for the Java Driver, the MongoDB driver for synchronous Java applications. Download it using Maven or Gradle, or set up a runnable project by following our Quick Start guide. For tutorials on how to use the MongoDB JVM Drivers, please reference MongoDB University. Additional tutorials, videos, and code examples using both the Java Driver and the Kotlin Driver can also be found in the MongoDB Developer Center.
    Downloads: 0 This Week
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  • 6
    MCProtocolLib

    MCProtocolLib

    A library for communication with a Minecraft client/server

    MCProtocolLib is a simple library for communicating with Minecraft clients and servers. It allows developers to build custom bots, clients, or servers for Minecraft with ease.
    Downloads: 8 This Week
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  • 7
    Dropwizard

    Dropwizard

    Simple library for building production-ready RESTful web services

    Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web services. Dropwizard pulls together stable, mature libraries from the Java ecosystem into a simple, light-weight package that lets you focus on getting things done. Dropwizard has out-of-the-box support for sophisticated configuration, application metrics, logging, operational tools, and much more, allowing you and your team to ship a production-quality web service in the shortest time possible. ...
    Downloads: 2 This Week
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  • 8
    Alibaba Dragonwell8

    Alibaba Dragonwell8

    Alibaba Dragonwell8 JDK

    Over the years, more than a billion lines of Java code have been written in Alibaba. While adopting OpenJDK to run these applications, we have found a need to customize it specifically for large-scale Java application deployments. Our customization has been well-tested in our environment. We are now contributing some of our work into the Java community. Alibaba Dragonwell, as a downstream version of OpenJDK, is the in-house OpenJDK implementation at Alibaba. ...
    Downloads: 14 This Week
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  • 9
    JSqlParser

    JSqlParser

    JSqlParser parses an SQL statement and translate it into a hierarchy

    JSqlParser is a SQL statement parser. It translates SQLs in a traversable hierarchy of Java classes. JSqlParser is not limited to one database but provides support for a lot of specials of Oracle, SqlServer, MySQL, PostgreSQL. To name some, it has support for Oracles join syntax using (+), PostgreSQLs cast syntax using ::, relational operators like != and so on. Then the result can be accessed in a structured way. The generated Java class hierarchy can be navigated using the Visitor Pattern.
    Downloads: 6 This Week
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  • 10
    Elide

    Elide

    Elide is a Java library that lets you stand up a GraphQL/JSON-API

    Model-driven {json:api} & GraphQL web services for CRUD and Analytics. Elide is a Java library that enables you to stand up JSON API or GraphQL web services in 4 simple steps. Define a JPA annotated model including relationships to other models using Java, Kotlin, Groovy, and other JVM languages. Control access to fields and entities through a declarative, intuitive permission syntax. Make instances of your new model accessible through a top level collection or restrict access only through relationships to other models. ...
    Downloads: 2 This Week
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  • 11
    Javassist

    Javassist

    Java bytecode engineering toolkit

    Javassist (JAVA programming ASSISTant) makes Java bytecode manipulation simple. It is a class library for editing bytecodes in Java; it enables Java programs to define a new class at runtime and to modify a class file when the JVM loads it. Unlike other similar bytecode editors, Javassist provides two levels of API: source level and bytecode level.
    Downloads: 0 This Week
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  • 12
    Event Ruler

    Event Ruler

    Java library that allows matching many thousands of Events per second

    Event Ruler (called Ruler in the rest of the doc for brevity) is a Java library that allows matching Rules to Events. An event is a list of fields, which may be given as name/value pairs or as a JSON object. A rule associates event field names with lists of possible values. Event Ruler is a Java library that allows matching many thousands of Events per second to any number of expressive and sophisticated rules.
    Downloads: 5 This Week
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  • 13
    Asciidoc Editor based on JavaFX 20

    Asciidoc Editor based on JavaFX 20

    Asciidoc Editor and Toolchain written with JavaFX 19

    Asciidoc FX is a WYSIWYG editor for the Asciidoc markup language. You can build PDF, Epub, and HTML books, documents, and slides. Supported Operating Systems and Builds shows the list of available builds with links for reference. If you are looking for the very latest version, visit the link in the note above to be guaranteed of downloading the latest and greatest version of AsciidocFX. AsciidocFX converts documents via the AsciidoctorJ library.
    Downloads: 14 This Week
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  • 14
    Glide

    Glide

    Android image loading & caching library focused on smooth scrolling

    Glide is a fast and efficient open source image loading and caching library for Android that focuses on smooth scrolling. It supports fetching, decoding and displaying images, video stills as well as animated GIFs, with a simple and easy to use interface and API. Glide offers a performant and extensible resource decoding pipeline and automatic resource pooling, and a flexible API that allows developers to plug in to just about any network stack. It is primarily focused on making any type...
    Downloads: 6 This Week
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  • 15
    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: 5 This Week
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  • 16
    pushy

    pushy

    A Java library for sending APNs (iOS/macOS/Safari)

    ...With Pushy, it’s easy and efficient to maintain multiple parallel connections to the APNs gateway to send large numbers of notifications to many different applications (“topics”). We believe that Pushy is already the best tool for sending APNs push notifications from Java applications, and we hope you’ll help us make it even better via bug reports and pull requests. If you need a simple GUI application for sending push notifications for development or testing purposes, you might also be interested in Pushy’s sister project, Pushy Console.
    Downloads: 5 This Week
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  • 17
    Logbook

    Logbook

    An extensible Java library for HTTP request and response logging

    ...Logbook is ready to use out of the box for most common setups. Even for uncommon applications and technologies, it should be simple to implement the necessary interfaces to connect a library/framework/etc. to it.
    Downloads: 5 This Week
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  • 18
    RoundCornerProgressBar

    RoundCornerProgressBar

    [Android] Round Corner Progress Bar Library for Android

    Round corner is cool. Let's make your progress bar with round corner. Colorful rounded corner progress bar.
    Downloads: 6 This Week
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  • 19
    International Components for Unicode

    International Components for Unicode

    The home of the ICU project source code

    ICU is a mature, widely used set of C/C++ and Java libraries providing Unicode and Globalization support for software applications. ICU is widely portable and gives applications the same results on all platforms and between C/C++ and Java software. ICU is released under a nonrestrictive open-source license that is suitable for use with both commercial software and with other open-source or free software. Convert text data to or from Unicode and nearly any other character set or encoding....
    Downloads: 12 This Week
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  • 20
    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: 3 This Week
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  • 21
    MyBatis Spring Adapter

    MyBatis Spring Adapter

    Spring integration for MyBatis 3

    MyBatis-Spring adapter is an easy-to-use Spring Framework bridge for MyBatis sql mapping framework. MyBatis-Spring integrates MyBatis seamlessly with Spring. This library allows MyBatis to participate in Spring transactions, takes care of building MyBatis mappers and SqlSessions and inject them into other beans, translates MyBatis exceptions into Spring DataAccessExceptions, and finally, it lets you build your application code free of dependencies on MyBatis, Spring or MyBatis-Spring. Spring...
    Downloads: 2 This Week
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  • 22
    Agrona

    Agrona

    High Performance data structures and utility methods for Java

    Agrona provides a library of data structures and utility methods that are a common need when building high-performance applications in Java. Many of these utilities are used in the Aeron efficient reliable UDP unicast, multicast, and IPC message transport and provides high-performance buffer implementations to support the Simple Binary Encoding Message Codec.
    Downloads: 2 This Week
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  • 23
    RoaringBitmap

    RoaringBitmap

    A better compressed bitset in Java

    Bitsets, also called bitmaps, are commonly used as fast data structures. Unfortunately, they can use too much memory. To compensate, we often use compressed bitmaps. Roaring bitmaps are compressed bitmaps which tend to outperform conventional compressed bitmaps such as WAH, EWAH or Concise. In some instances, roaring bitmaps can be hundreds of times faster and they often offer significantly better compression. They can even be faster than uncompressed bitmaps.
    Downloads: 2 This Week
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  • 24
    OpenAPI Generator

    OpenAPI Generator

    OpenAPI Generator allows generation of API client libraries

    With 50+ client generators, you can easily generate code to interact with any server which exposes an OpenAPI document. Maintainers of APIs may also automatically generate and distribute clients as part of official SDKs. Each client supports different options and features, but all templates can be replaced with your own Mustache-based templates. Getting started with server development can be tough, especially if you're evaluating technologies. We can reduce the burden when you bring your own...
    Downloads: 8 This Week
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  • 25
    Lettuce

    Lettuce

    Advanced Java Redis client for thread-safe sync, async, etc.

    Build elastic data access. Lettuce is a scalable Redis client for building non-blocking Reactive applications. Lettuce is a fully non-blocking Redis client built with netty providing Reactive, Asynchronous and Synchronous Data Access. Lettuce provides asynchronous API with RedisFuture (CompletionStage) and Reactive types Flux [N] and Mono [0|1]. Low-latency communication, backpressure-enabled network engine for NIO TCP, epoll TCP and Unix Domain Sockets. Reactive Streaming is fully...
    Downloads: 1 This Week
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