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GitHub - questdb/questdb: QuestDB is an open source time-series database for fast ingest and SQL queriesQuestDB is an open source time-series database for fast ingest and SQL queries - questdb/questdb
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GitHub - questdb/questdb: QuestDB is an open source time-series database for fast ingest and SQL queries
QuestDB is the fastest growing open-source time-series database offering blazingly fast, high throughput ingestion and dynamic, low-latency SQL queries. The entire high-performance codebase is built from the ground up in Java, C++ and Rust with no dependencies and zero garbage collection.
We achieve high performance via a column-oriented storage model, parallelized vector execution, SIMD instructions, and low-latency techniques. In addition, QuestDB is hardware efficient, with quick setup and operational efficiency.
QuestDB implements ANSI SQL with native time-series SQL extensions. These SQL extensions make it simple to analyze, filter and downsample data, or to correlate data from multiple sources using relational and time-series joins.
Ready to go? Jump to the Get started section.
Benefits of QuestDB
QuestDB excels with:
- financial market data
- IoT sensors with high data cardinality
- real-time dashboards
Feature highlights include:
- SQL with powerful, SIMD-optimized time-series extensions
- High-speed ingestion via the InfluxDB Line Protocol
- Strong and efficient performance on limited hardware
- Columnar storage format (native or Apache Parquet), partitioned and ordered by time
- Responsive and intuitive Web Console for query and data management, with error handling
- Excellent performance with high data cardinality - see benchmarks
And why use a time-series database?
Beyond performance and efficiency, with a specialized time-series database, you don't need to worry about:
- out-of-order data
- duplicates
- exactly one semantics
- streaming data (low latency)
- high volumes of concurrent requests
- volatile and "bursty" data
- adding new columns - change schema "on the fly" while streaming data
Try QuestDB, demo and dashboards
The live, public demo is provisioned with the latest QuestDB release and sample datasets:
- Trips: 10 years of NYC taxi trips with 1.6 billion rows
- Trades: live crypto market data with 30M+ rows per month
- Pos: geolocations of 250k unique ships over time
Use example queries or write your own!
The public demo queries over 1.6BN rows and uses a r6a.12xlarge 48 vCPU and 348GB RAM instance.
| Query | Execution time |
|---|---|
SELECT sum(double) FROM trips |
0.15 secs |
SELECT sum(double), avg(double) FROM trips |
0.5 secs |
SELECT avg(double) FROM trips WHERE time in '2019' |
0.02 secs |
SELECT time, avg(double) FROM trips WHERE time in '2019-01-01' SAMPLE BY 1h |
0.01 secs |
SELECT * FROM trades LATEST ON timestamp PARTITION BY symbol |
0.00025 secs |
We also have some public, real-time demo dashboards using our Grafana-native plugin:
- Real-time crypto trades: executed trades on OKX from more than 20 assets in real time
- NYC taxi geolocation data: real-time replay of 146,393,317 taxi rides across New York City in 2016
QuestDB performance vs. other oss databases
QuestDB performs very well in performance benchmarks compared to alternatives.
For deep dives into internals and performance, see the following blog posts:
As always, we encourage you to run your own benchmarks.
Get started
Use Docker to start quickly:
docker run -p 9000:9000 -p 9009:9009 -p 8812:8812 questdb/questdb
Or macOS users can use Homebrew:
brew install questdb
brew services start questdb
questdb start
questdb stop
Alternatively, to kickoff the full onboarding journey, start with our concise quick start guide.
First-party ingestion clients
QuestDB clients for ingesting data via the InfluxDB Line Protocol:
Connect to QuestDB
Interact with QuestDB and your data via the following interfaces:
- Web Console for an interactive SQL
editor and CSV import on port
9000 - InfluxDB Line Protocol
for streaming ingestion on port
9000 - PostgreSQL Wire Protocol
for programmatic queries on port
8812 - REST API for CSV import and
cURL on port
9000
Popular third-party tools
Popular tools that integrate with QuestDB include:
End-to-end code scaffolds
From streaming ingestion to visualization with Grafana, start with code scaffolds in from our quickstart repository.
Configure QuestDB for production workloads
Find our capacity planning to fine-tune QuestDB for production workloads.
QuestDB Enterprise
For secure operation at greater scale or within larger organizations.
Additional features include:
- multi-primary ingestion
- read replica(s)
- cold storage integration
- role-based access control
- TLS encryption
- native querying of Parquet files via object storage
- support SLAs, enhanced monitoring and more
Visit the Enterprise page for further details and contact information.
Additional resources
📚 Read the docs
- QuestDB documentation: begin the journey
- Product roadmap: check out our plan for upcoming releases
- Tutorials: learn what's possible with QuestDB, step by step
❓ Get support
- Community Discourse forum: join technical discussions, ask questions, and meet other users!
- Public Slack: chat with the QuestDB team and community members
- GitHub issues: report bugs or issues with QuestDB
- Stack Overflow: look for common troubleshooting solutions
🚢 Deploy QuestDB
Contribute
Contributions welcome!
We appreciate:
- source code
- documentation (see our documentation repository)
- bug reports
- feature requests or feedback.
To get started with contributing:
- Have a look through GitHub issues labelled "Good first issue"
- For Hacktoberfest, see the relevant labelled issues
- Read the contribution guide
- For details on building QuestDB, see the build instructions
- Create a fork of QuestDB and submit a pull request with your proposed changes
- Stuck? Join our public Slack for assistance
✨ As a sign of our gratitude, we send QuestDB swag to our contributors!
A big thanks goes to the following wonderful people who have contributed to QuestDB emoji key:
This project adheres to the all-contributors specification. Contributions of any kind are welcome!
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https://github.com/google/jimfsAn in-memory file system for Java 7+. Contribute to google/jimfs development by creating an account on GitHub. - 109Java client for Consul HTTP API
https://github.com/Ecwid/consul-apiJava client for Consul HTTP API. Contribute to Ecwid/consul-api development by creating an account on GitHub. - 110jOOX - The Power of jQuery Applied to W3C DOM Like JDBC, DOM is a powerful, yet very verbose low-level API to manipulate XML. The HTML DOM an be manipulated with the popular jQuery product, in JavaScript. Why don't we have jQuery in Java? jOOX is jQuery's XML parts, applied to Java.
https://github.com/jooq/jooxjOOX - The Power of jQuery Applied to W3C DOM Like JDBC, DOM is a powerful, yet very verbose low-level API to manipulate XML. The HTML DOM an be manipulated with the popular jQuery product, in Java... - 111FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.
https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEditionFizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes. - EnterpriseQualityCoding/FizzBuzzEnterpriseEdition - 112An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
https://github.com/micrometer-metrics/micrometerAn application observability facade for the most popular observability tools. Think SLF4J, but for observability. - micrometer-metrics/micrometer - 113Extract tables from PDF files
https://github.com/tabulapdf/tabula-javaExtract tables from PDF files. Contribute to tabulapdf/tabula-java development by creating an account on GitHub. - 114OpenPDF is a free Java library for creating and editing PDF files, with a LGPL and MPL open source license. OpenPDF is based on a fork of iText. We welcome contributions from other developers. Please feel free to submit pull-requests and bugreports to this GitHub repository.
https://github.com/LibrePDF/OpenPDFOpenPDF is a free Java library for creating and editing PDF files, with a LGPL and MPL open source license. OpenPDF is based on a fork of iText. We welcome contributions from other developers. Plea... - 115JavaMelody : monitoring of JavaEE applications
https://github.com/javamelody/javamelodyJavaMelody : monitoring of JavaEE applications. Contribute to javamelody/javamelody development by creating an account on GitHub. - 116Java Abstracted Foreign Function Layer
https://github.com/jnr/jnr-ffiJava Abstracted Foreign Function Layer. Contribute to jnr/jnr-ffi development by creating an account on GitHub. - 117A lightweight, simple FTP server. Pure Java, no dependencies.
https://github.com/Guichaguri/MinimalFTPA lightweight, simple FTP server. Pure Java, no dependencies. - Guichaguri/MinimalFTP - 118TCP/UDP client/server library for Java, based on Kryo
https://github.com/EsotericSoftware/kryonetTCP/UDP client/server library for Java, based on Kryo - EsotericSoftware/kryonet - 119XML/XHTML and CSS 2.1 renderer in pure Java
https://github.com/flyingsaucerproject/flyingsaucerXML/XHTML and CSS 2.1 renderer in pure Java. Contribute to flyingsaucerproject/flyingsaucer development by creating an account on GitHub. - 120Efficient reliable UDP unicast, UDP multicast, and IPC message transport
https://github.com/real-logic/AeronEfficient reliable UDP unicast, UDP multicast, and IPC message transport - real-logic/aeron - 121Prometheus instrumentation library for JVM applications
https://github.com/prometheus/client_javaPrometheus instrumentation library for JVM applications - prometheus/client_java - 122JObfuscator — Java Source Code Obfuscation & Protection
https://www.pelock.com/products/jobfuscatorJObfuscator is a source code obfuscator for the Java language. Protect Java source code & algorithms from hacking, cracking, reverse engineering, decompilation & technology theft. - 123:chart_with_upwards_trend: Capturing JVM- and application-level metrics. So you know what's going on.
https://github.com/dropwizard/metrics:chart_with_upwards_trend: Capturing JVM- and application-level metrics. So you know what's going on. - dropwizard/metrics - 124Statistical Machine Intelligence & Learning Engine
https://github.com/haifengl/smileStatistical Machine Intelligence & Learning Engine - haifengl/smile - 125PipelinR is a lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your Java awesome app.
https://github.com/sizovs/pipelinrPipelinR is a lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your Java awesome app. - GitHub - sizovs/PipelinR: PipelinR is a lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your Java... - 126Home - Micronaut Framework
https://micronaut.ioThe Micronaut® framework is a modern, open source, JVM-based, full-stack toolkit for building modular, easily testable microservices and serverless applications. - 127Java reporting library for creating dynamic report designs at runtime
https://github.com/dynamicreports/dynamicreportsJava reporting library for creating dynamic report designs at runtime - dynamicreports/dynamicreports - 128Java Structured Logging API for Logback, Log4J2, and JUL
https://github.com/tersesystems/echopraxiaJava Structured Logging API for Logback, Log4J2, and JUL - tersesystems/echopraxia - 129Support alternative markup for Apache Maven POM files
https://github.com/takari/polyglot-mavenSupport alternative markup for Apache Maven POM files - takari/polyglot-maven - 130Pure Java ZeroMQ
https://github.com/zeromq/jeromqPure Java ZeroMQ . Contribute to zeromq/jeromq development by creating an account on GitHub. - 131OctoLinker — Links together, what belongs together
https://github.com/OctoLinker/OctoLinkerOctoLinker — Links together, what belongs together - OctoLinker/OctoLinker - 132DataMelt
https://datamelt.org/Java program for data analysis, statistics and visualization - 133AWS Service registry for resilient mid-tier load balancing and failover.
https://github.com/Netflix/eurekaAWS Service registry for resilient mid-tier load balancing and failover. - Netflix/eureka - 134A fast, light and cloud native OAuth 2.0 authorization microservices based on light-4j
https://github.com/networknt/light-oauth2/.A fast, light and cloud native OAuth 2.0 authorization microservices based on light-4j - networknt/light-oauth2 - 135ISBN core
https://github.com/ladutsko/isbn-coreISBN core. Contribute to ladutsko/isbn-core development by creating an account on GitHub. - 136Provides tracing abstractions over tracers and tracing system reporters.
https://github.com/micrometer-metrics/tracingProvides tracing abstractions over tracers and tracing system reporters. - micrometer-metrics/tracing - 137Java library for representing, parsing and encoding URNs as in RFC2141 and RFC8141 (Maintained by @claussni)
https://github.com/slub/urnlibJava library for representing, parsing and encoding URNs as in RFC2141 and RFC8141 (Maintained by @claussni) - slub/urnlib - 138The Java gRPC implementation. HTTP/2 based RPC
https://github.com/grpc/grpc-javaThe Java gRPC implementation. HTTP/2 based RPC. Contribute to grpc/grpc-java development by creating an account on GitHub. - 139The java implementation of Apache Dubbo. An RPC and microservice framework.
https://github.com/apache/dubboThe java implementation of Apache Dubbo. An RPC and microservice framework. - apache/dubbo - 140commons networking utils
https://github.com/CiscoSE/commons-networkingcommons networking utils. Contribute to CiscoSE/commons-networking development by creating an account on GitHub. - 141IP2Location.io Java SDK allows user to query for an enriched data set based on IP address and provides WHOIS lookup api that helps users to obtain domain information.
https://github.com/ip2location/ip2location-io-javaIP2Location.io Java SDK allows user to query for an enriched data set based on IP address and provides WHOIS lookup api that helps users to obtain domain information. - ip2location/ip2location-io-java - 142OpenAI Api Client in Java
https://github.com/TheoKanning/openai-javaOpenAI Api Client in Java. Contribute to TheoKanning/openai-java development by creating an account on GitHub. - 143Best-of-breed OpenTracing utilities, instrumentations and extensions
https://github.com/zalando/opentracing-toolboxBest-of-breed OpenTracing utilities, instrumentations and extensions - zalando/opentracing-toolbox - 144OpenTelemetry Java SDK
https://github.com/open-telemetry/opentelemetry-javaOpenTelemetry Java SDK. Contribute to open-telemetry/opentelemetry-java development by creating an account on GitHub. - 145Elide
https://elide.ioModel Driven Json API and GraphQL Web Services for Java - 146The official AWS SDK for Java - Version 2
https://github.com/aws/aws-sdk-java-v2The official AWS SDK for Java - Version 2. Contribute to aws/aws-sdk-java-v2 development by creating an account on GitHub. - 147🛑 This library is DEPRECATED!
https://github.com/jaegertracing/jaeger-client-java🛑 This library is DEPRECATED! Contribute to jaegertracing/jaeger-client-java development by creating an account on GitHub. - 148an open source solution to application performance monitoring for java server applications
https://github.com/stagemonitor/stagemonitoran open source solution to application performance monitoring for java server applications - stagemonitor/stagemonitor - 149A Sentry SDK for Java, Android and other JVM languages.
https://github.com/getsentry/sentry-javaA Sentry SDK for Java, Android and other JVM languages. - getsentry/sentry-java - 150A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)
https://github.com/alibaba/SentinelA powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件) - alibaba/Sentinel - 151Your relational data. Objectively. - Hibernate ORM
http://hibernate.org/orm/Idiomatic persistence for Java and relational databases. - 152A networking framework that evolves with your application
https://github.com/apple/servicetalkA networking framework that evolves with your application - apple/servicetalk - 153Ultra-fast SQL-like queries on Java collections
https://github.com/npgall/cqengineUltra-fast SQL-like queries on Java collections. Contribute to npgall/cqengine development by creating an account on GitHub. - 154Home | MobileUI
https://mobileui.devMobileUI Framework for cross-platform app development with Kotlin and Java. - 155Cryptomator - Free Cloud Encryption for Dropbox & Co
https://cryptomator.orgEncrypt Dropbox, Google Drive, and any other cloud. Cryptomator is free and open source. - 156GraphStream - A Dynamic Graph Library
http://graphstream-project.orgGraphStream, java library, API, Graph Visualisation, Graph Layout - 157Cloud Application Platform | Heroku
https://www.heroku.comHeroku is a platform as a service (PaaS) that enables developers to build, run, and operate applications entirely in the cloud. - 158ActiveJ RPC | Lightning-fast binary protocol for high-load architecture | ActiveJ 6.0
https://rpc.activej.ioActiveJ RPC is a lightning-fast binary protocol for high-load microservices architecture - 159Build software better, together
https://github.com/DaveJarvis/KeenTypeGitHub is where people build software. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. - 160Topaz | Topaz
https://www.topaz.shAn open-source, self-hosted, fine-grained access control service for Cloud Native applications - 161GraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀
https://github.com/oracle/graalGraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀 - oracle/graal - 162Password strength estimator
https://github.com/GoSimpleLLC/nbvcxzPassword strength estimator. Contribute to GoSimpleLLC/nbvcxz development by creating an account on GitHub. - 163Red Hat OpenShift enterprise application platform
https://www.openshift.comRed Hat® OpenShift® is a comprehensive application platform to build, modernize, and deploy applications, including AI-enabled apps, at scale. - 164jmix.io
https://www.cuba-platform.com/Jmix is a general-purpose high productivity software development platform for building line-of-business applications powered by a professional development environment IntelliJ IDEA and focused on implementing advanced business logic compared to Low Code and BPM platforms. - 165Eclipse Deeplearning4j
https://deeplearning4j.orgThe Eclipse Deeplearning4j Project. Eclipse Deeplearning4j has 4 repositories available. Follow their code on GitHub. - 166Cross-Platform App Development with Java/Kotlin
https://www.codenameone.comOpen-source cross-platform mobile app development framework to build native iOS, Android, Desktop & Web apps with a single Java or Kotlin codebase. - 167Alibaba Dragonwell8 JDK
https://github.com/alibaba/dragonwell8Alibaba Dragonwell8 JDK. Contribute to dragonwell-project/dragonwell8 development by creating an account on GitHub. - 168Integrate with the latest language models, image generation, speech, and deep learning frameworks like ChatGPT, DALL·E, and Cohere using few java lines.
https://github.com/Barqawiz/IntelliJavaIntegrate with the latest language models, image generation, speech, and deep learning frameworks like ChatGPT, DALL·E, and Cohere using few java lines. - intelligentnode/IntelliJava - 169Apache Pulsar | Apache Pulsar
https://pulsar.apache.orgApache Pulsar is an open-source, distributed messaging and streaming platform built for the cloud. - 170Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
https://github.com/eclipse/openj9Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combine... - 171Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.
https://github.com/google/tinkTink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse. - tink-crypto/tink - 172APM, (Application Performance Management) tool for large-scale distributed systems.
https://github.com/naver/pinpointAPM, (Application Performance Management) tool for large-scale distributed systems. - GitHub - pinpoint-apm/pinpoint: APM, (Application Performance Management) tool for large-scale distributed sys... - 173Java wrapper for the popular chat & VOIP service: Discord https://discord.com
https://github.com/DV8FromTheWorld/JDAJava wrapper for the popular chat & VOIP service: Discord https://discord.com - discord-jda/JDA - 174Home - ISA-Ali
http://alias-i.com/lingpipe/The School’s goals and methods are strikingly different from many short-term computer courses. Teaching programming is not reduced to listing and mindlessly memorizing language statements, which eventually the student does not know how to apply to the solution of a particular problem. - 175API gateway for REST, OpenAPI, GraphQL and SOAP written in Java.
https://github.com/membrane/service-proxyAPI gateway for REST, OpenAPI, GraphQL and SOAP written in Java. - membrane/api-gateway - 176AutoMQ is a cloud-first alternative to Kafka by decoupling durability to S3 and EBS. 10x cost-effective. Autoscale in seconds. Single-digit ms latency.
https://github.com/AutoMQ/automq-for-kafkaAutoMQ is a cloud-first alternative to Kafka by decoupling durability to S3 and EBS. 10x cost-effective. Autoscale in seconds. Single-digit ms latency. - AutoMQ/automq - 177A scientific charting library focused on performance optimised real-time data visualisation at 25 Hz update rates for data sets with a few 10 thousand up to 5 million data points.
https://github.com/GSI-CS-CO/chart-fxA scientific charting library focused on performance optimised real-time data visualisation at 25 Hz update rates for data sets with a few 10 thousand up to 5 million data points. - fair-acc/chart-fx - 178A blazingly fast multi-language serialization framework powered by JIT and zero-copy.
https://github.com/alipay/furyA blazingly fast multi-language serialization framework powered by JIT and zero-copy. - apache/fury - 179Home
https://www.graylog.orgGraylog is a leading centralized log management solution for capturing, storing, and enabling real-time analysis of terabytes of machine data. - 180Apache HertzBeat(incubating) is a real-time monitoring system with agentless, performance cluster, prometheus-compatible, custom monitoring and status page building capabilities.
https://github.com/dromara/hertzbeatApache HertzBeat(incubating) is a real-time monitoring system with agentless, performance cluster, prometheus-compatible, custom monitoring and status page building capabilities. - apache/hertzbeat - 181Cloud Computing Services | Google Cloud
https://cloud.google.comMeet your business challenges head on with cloud computing services from Google, including data management, hybrid & multi-cloud, and AI & ML. - 182Test Automation Made Simple
https://github.com/intuit/karateTest Automation Made Simple. Contribute to karatelabs/karate development by creating an account on GitHub. - 183MockServer
https://www.mock-server.comMockServer enables easy mocking of any system you integrate with via HTTP or HTTPS. It also proxies, allowing introspection and modification of proxied traffic, with all proxy protocols (i.e. port forwarding, HTTP, HTTPS, SOCKS4, SOCKS5, etc). - 184Javalin - A lightweight Java and Kotlin web framework. Create REST APIs in Java or Kotlin easily.
https://javalin.io/Javalin - A lightweight Java and Kotlin web framework. Create REST APIs in Java or Kotlin easily. - 185ActiveJ | Alternative Java platform for web, high load, and cloud programming | ActiveJ 6.0
https://activej.ioActiveJ is an alternative Java platform built from the ground up for web, high load, and cloud programming as a replacement for Spring, Quarkus, Vert.x and other sub-optimal solutions - 186JGit | The Eclipse Foundation
https://www.eclipse.org/jgit/The Eclipse Foundation - home to a global community, the Eclipse IDE, Jakarta EE and over 415 open source projects, including runtimes, tools and frameworks. - 187Awesome Java | LibHunt
https://java.libhunt.comYour go-to Java Toolbox. A curated list of awesome Java frameworks, libraries and software. 1050 projects organized into 134 categories. - 188PrimeFaces
https://www.primefaces.orgUltimate UI Framework - 189Head First Java, 3rd Edition
https://www.oreilly.com/library/view/head-first-java/9781492091646/What will you learn from this book? Head First Java is a complete learning experience in Java and object-oriented programming. With this book, you'll learn the Java language with a … - Selection from Head First Java, 3rd Edition [Book] - 190WireMock - flexible, open source API mocking
http://wiremock.orgWireMock is a tool for building mock APIs. API mocking enables you build stable, predictable development environments when the APIs you depend on are unreliable or don’t exist. - 191Java, SQL and jOOQ.
https://blog.jooq.orgOracle 23ai still doesn't support the standard SQL FILTER clause on aggregate functions, which can prove to be tricky to emulate on JSON aggregate functions - 192Roadmap to becoming a Java developer in 2024
https://github.com/s4kibs4mi/java-developer-roadmapRoadmap to becoming a Java developer in 2024. Contribute to s4kibs4mi/java-developer-roadmap development by creating an account on GitHub. - 193The SDKMAN! Command Line Interface
https://github.com/sdkman/sdkman-cliThe SDKMAN! Command Line Interface. Contribute to sdkman/sdkman-cli development by creating an account on GitHub. - 194Java regular expressions made easy.
https://github.com/VerbalExpressions/JavaVerbalExpressionsJava regular expressions made easy. Contribute to VerbalExpressions/JavaVerbalExpressions development by creating an account on GitHub. - 195Load testing designed for DevOps and CI/CD | Gatling
https://gatling.ioGatling is a load testing tool for web applications designed for DevOps and Continuous Integration. Try Gatling now! - 196(cross-platform) Java Version Manager
https://github.com/shyiko/jabba(cross-platform) Java Version Manager. Contribute to shyiko/jabba development by creating an account on GitHub. - 197Easy Setup Stub Server
https://github.com/dreamhead/mocoEasy Setup Stub Server. Contribute to dreamhead/moco development by creating an account on GitHub. - 198Object-Oriented Java primitives, as an alternative to Google Guava and Apache Commons
https://github.com/yegor256/cactoosObject-Oriented Java primitives, as an alternative to Google Guava and Apache Commons - yegor256/cactoos - 199foojay – a place for friends of OpenJDK
https://foojay.io/today/category/podcast/foojay is a place for friends of OpenJDK, a one stop shop for all things Java. Learn More. - 200Build Modern Web Apps using Java Full-Stack platform
https://vaadin.comVaadin is a full-stack platform for building responsive, modern web applications in Java with a library of UI components and powerful development tools. - 201Newest 'java' Questions
https://stackoverflow.com/questions/tagged/javaStack Overflow | The World’s Largest Online Community for Developers - 202The Well-Grounded Java Developer, Second Edition
https://www.manning.com/books/the-well-grounded-java-developer-second-editionUnderstanding Java from the JVM up gives you a solid foundation to grow your expertise and take on advanced techniques for performance, concurrency, containerization, and more.</b><br/><br/> In The Well-Grounded Java Developer, Second Edition</i> you will learn: The new Java module system and why you should use it</li> Bytecode for the JVM, including operations and classloading</li> Performance tuning the JVM</li> Working with Java’s built-in concurrency and expanded options</li> Programming in Kotlin and Clojure on the JVM</li> Maximizing the benefits from your build/CI tooling with Maven and Gradle</li> Running the JVM in containers</li> Planning for future JVM releases</li> </ul> The Well-Grounded Java Developer, Second Edition</i> introduces both the modern innovations and timeless fundamentals you need to know to become a Java master. Authors Ben Evans, Martijn Verburg, and Jason Clark distill their decades of experience as Java Champions, veteran developers, and key contributors to the Java ecosystem into this clear and practical guide. You’ll discover how Java works under the hood and learn design secrets from Java’s long history. Each concept is illustrated with hands-on examples, including a fully modularized application/library and creating your own multithreaded application. - 203A curated list of resources related to the Java annotation processing API (JSR 269)
https://github.com/gunnarmorling/awesome-annotation-processingA curated list of resources related to the Java annotation processing API (JSR 269) - gunnarmorling/awesome-annotation-processing - 204MinIO Client SDK for Java
https://github.com/minio/minio-javaMinIO Client SDK for Java. Contribute to minio/minio-java development by creating an account on GitHub. - 205Snapshot testing for Java, Kotlin, and the JVM
https://github.com/diffplug/selfieSnapshot testing for Java, Kotlin, and the JVM. Contribute to diffplug/selfie development by creating an account on GitHub. - 206Google core libraries for Java
https://github.com/google/guavaGoogle core libraries for Java. Contribute to google/guava development by creating an account on GitHub. - 207PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.
https://github.com/powermock/powermockPowerMock is a Java framework that allows you to unit test code normally regarded as untestable. - powermock/powermock - 208🎯 ConsoleCaptor captures console output for unit and integration testing purposes
https://github.com/Hakky54/console-captor🎯 ConsoleCaptor captures console output for unit and integration testing purposes - Hakky54/console-captor - 209A TestNG like dataprovider runner for JUnit with many additional features
https://github.com/TNG/junit-dataproviderA TestNG like dataprovider runner for JUnit with many additional features - TNG/junit-dataprovider - 210A curated list of awesome Gradle plugins and resources for a better development workflow automation.
https://github.com/ksoichiro/awesome-gradleA curated list of awesome Gradle plugins and resources for a better development workflow automation. - ksoichiro/awesome-gradle - 211A curated list of delightful Selenium resources.
https://github.com/christian-bromann/awesome-seleniumA curated list of delightful Selenium resources. Contribute to christian-bromann/awesome-selenium development by creating an account on GitHub. - 212Dex : The Data Explorer -- A data visualization tool written in Java/Groovy/JavaFX capable of powerful ETL and publishing web visualizations.
https://github.com/PatMartin/DexDex : The Data Explorer -- A data visualization tool written in Java/Groovy/JavaFX capable of powerful ETL and publishing web visualizations. - PatMartin/Dex - 213Java lib for monitoring directories or individual files via java.nio.file.WatchService
https://github.com/vorburger/ch.vorburger.fswatchJava lib for monitoring directories or individual files via java.nio.file.WatchService - vorburger/ch.vorburger.fswatch - 214A collaborative list of great resources about RESTful API architecture, development, test, and performance
https://github.com/marmelab/awesome-restA collaborative list of great resources about RESTful API architecture, development, test, and performance - marmelab/awesome-rest - 215EasyMock, makes mocking easier since 2001
https://github.com/easymock/easymockEasyMock, makes mocking easier since 2001. Contribute to easymock/easymock development by creating an account on GitHub. - 216Test if a request/response matches a given raml definition
https://github.com/nidi3/raml-testerTest if a request/response matches a given raml definition - nidi3/raml-tester - 217dregex is a Java library that implements a regular expression engine using deterministic finite automata (DFA). It supports some Perl-style features and yet retains linear matching time, and also offers set operations.
https://github.com/marianobarrios/dregexdregex is a Java library that implements a regular expression engine using deterministic finite automata (DFA). It supports some Perl-style features and yet retains linear matching time, and also o... - 218Java scope functions inspired by Kotlin
https://github.com/evpl/jkscopeJava scope functions inspired by Kotlin. Contribute to evpl/jkscope development by creating an account on GitHub. - 219A scalable web crawler framework for Java.
https://github.com/code4craft/webmagicA scalable web crawler framework for Java. Contribute to code4craft/webmagic development by creating an account on GitHub. - 220Manage your Java environment
https://github.com/jenv/jenvManage your Java environment . Contribute to jenv/jenv development by creating an account on GitHub. - 221:rocket: Lightning fast and elegant mvc framework for Java8
https://github.com/lets-blade/blade:rocket: Lightning fast and elegant mvc framework for Java8 - lets-blade/blade - 222A curated list of awesome JavaFX libraries, books, frameworks, etc...
https://github.com/mhrimaz/AwesomeJavaFXA curated list of awesome JavaFX libraries, books, frameworks, etc... - mhrimaz/AwesomeJavaFX - 223java port of Underscore.js
https://github.com/javadev/underscore-javajava port of Underscore.js. Contribute to javadev/underscore-java development by creating an account on GitHub. - 224A curated list of Microservice Architecture related principles and technologies.
https://github.com/mfornos/awesome-microservicesA curated list of Microservice Architecture related principles and technologies. - mfornos/awesome-microservices - 225Baeldung
https://www.baeldung.comIn-depth, to-the-point tutorials on Java, Spring, Spring Boot, Security, and REST. - 226A curated list of awesome loosely performance related JVM stuff. Inspired by awesome-python.
https://github.com/deephacks/awesome-jvmA curated list of awesome loosely performance related JVM stuff. Inspired by awesome-python. - deephacks/awesome-jvm - 227Gephi - The Open Graph Viz Platform
https://github.com/gephi/gephiGephi - The Open Graph Viz Platform. Contribute to gephi/gephi development by creating an account on GitHub. - 228🎯 LogCaptor captures log entries for unit and integration testing purposes
https://github.com/Hakky54/log-captor🎯 LogCaptor captures log entries for unit and integration testing purposes - Hakky54/log-captor - 229Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
https://github.com/alibaba/arthasAlibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas - 230A curated list of awesome resources for Graal, GraalVM, Truffle and related topics
https://github.com/neomatrix369/awesome-graalA curated list of awesome resources for Graal, GraalVM, Truffle and related topics - neomatrix369/awesome-graal - 231A library that generates postman collection and integration tests from java code
https://github.com/cleopatra27/chocoteaA library that generates postman collection and integration tests from java code - cleopatra27/chocotea - 232Programming & DevOps news, tutorials & tools
https://dzone.comProgramming, Web Development, and DevOps news, tutorials and tools for beginners to experts. Hundreds of free publications, over 1M members, totally free. - 233Free Java & OpenJDK Info for Daily Java Usage | foojay
https://foojay.ioA place for friends of OpenJDK, foojay provides user-focused Java and OpenJDK technical info and dashboards with free data for everyday Java developers. - 234Semantic versioning for Java apps.
https://github.com/semver4j/semver4jSemantic versioning for Java apps. Contribute to semver4j/semver4j development by creating an account on GitHub. - 235Developer Community
https://community.oracle.com/community/javaWhat is Oracle Forums? A place where you can connect, learn and explore. Whether you are a product manager, marketing manager, or general tech enthusiast, we welcome you. In Oracle Forums, you can cre... - 236Most popular Mocking framework for unit tests written in Java
https://github.com/mockito/mockitoMost popular Mocking framework for unit tests written in Java - mockito/mockito - 237assertions for logging with logback
https://github.com/dm-drogeriemarkt/log-captureassertions for logging with logback. Contribute to dm-drogeriemarkt/log-capture development by creating an account on GitHub. - 238Lightweight analysis tool for detecting mutability in Java classes
https://github.com/MutabilityDetector/MutabilityDetectorLightweight analysis tool for detecting mutability in Java classes - MutabilityDetector/MutabilityDetector - 239A Java architecture test library, to specify and assert architecture rules in plain Java
https://github.com/TNG/ArchUnitA Java architecture test library, to specify and assert architecture rules in plain Java - TNG/ArchUnit - 240A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.
https://github.com/flowable/flowable-engineA compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users. - flowable/flowable-engine - 241Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
https://github.com/testcontainers/testcontainers-javaTestcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker containe... - 242Embulk: Pluggable Bulk Data Loader.
https://github.com/embulk/embulkEmbulk: Pluggable Bulk Data Loader. Contribute to embulk/embulk development by creating an account on GitHub. - 243Open Source Web Crawler for Java
https://github.com/yasserg/crawler4jOpen Source Web Crawler for Java. Contribute to yasserg/crawler4j development by creating an account on GitHub. - 244True Object-Oriented Java Web Framework without NULLs, Static Methods, Annotations, and Mutable Objects
https://github.com/yegor256/takesTrue Object-Oriented Java Web Framework without NULLs, Static Methods, Annotations, and Mutable Objects - yegor256/takes - 245XMLUnit for Java 2.x
https://github.com/xmlunit/xmlunitXMLUnit for Java 2.x. Contribute to xmlunit/xmlunit development by creating an account on GitHub. - 246Compare JSON in your Unit Tests
https://github.com/lukas-krecan/JsonUnitCompare JSON in your Unit Tests. Contribute to lukas-krecan/JsonUnit development by creating an account on GitHub. - 247Improve Service Reliability with AI
https://blog.overops.comUse AI to enhance software delivery with automated SLO tracking and change impact analysis for better reliability. - 248A curated list of delightful SAP Commerce resources.
https://github.com/eminyagiz42/awesome-hybrisA curated list of delightful SAP Commerce resources. - eminyagiz42/awesome-sap-commerce - 249Java rate limiting library based on token-bucket algorithm.
https://github.com/vladimir-bukhtoyarov/bucket4jJava rate limiting library based on token-bucket algorithm. - bucket4j/bucket4j - 250JVM version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.
https://github.com/DiUS/pact-jvmJVM version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.... - 251Checklist for code reviews
https://github.com/code-review-checklists/java-concurrencyChecklist for code reviews. Contribute to code-review-checklists/java-concurrency development by creating an account on GitHub. - 252continuous integration and continuous delivery
https://github.com/ciandcd/awesome-ciandcdcontinuous integration and continuous delivery. Contribute to cicdops/awesome-ciandcd development by creating an account on GitHub. - 253A list of useful Java frameworks, libraries, software and hello worlds examples
https://github.com/Vedenin/useful-java-linksA list of useful Java frameworks, libraries, software and hello worlds examples - Vedenin/useful-java-links
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FAQ'sto learn more about Angular JS.
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- 1
what can you do with java programming language - 2
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how to use eclipse for java programming
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