By
picocli
picoclipicocli
LanguagesWhat is picocli?
Library and framework for easily building professional command line applications on the JVM (Java, Groovy, Kotlin, Scala, etc). Usage help with ANSI colors. Autocomplete. Nested subcommands. Annotations and programmatic API. Easy to include as source to avoid adding dependencies. More than just a command line parser.
picocli is a tool in the Languages category of a tech stack.
Key Features
Java 5-13eaannotation APIprogrammatic APIGraalVM integration - for extremely fast startupnested subcommands to any depthstrongly typed option parametersstrongly typed positional parametersmany, many built-in typeseasily add custom type convertersinteractive password optionssupports Maps for options and positional parameters (like -Dkey=value Java system properties)no boilerplate code, just implement Runnable or Callablesupports both mixins and subclassing for reusebuilt-in support for standard --help and --version options (zero code)built-in help subcommanduses STDERR for error messages, STDOUT for requested help by defaultallows any option prefixPOSIX-style clustered short optionshighly configurable parserparser tracing to facilitate troubleshootingquality documentationbuilt-in Groovy script supporteasily integrates with Dependency Injection containerseasily integrates with JLine 2 and JLine 3 to create interactive shell applications
picocli Pros & Cons
Pros of picocli
- ✓Actively maintained
- ✓ANSI colors in usage help
- ✓Best Java framework for Java CLI that I know
- ✓Command line auto-completion
- ✓Easy to Use
- ✓Flexible
- ✓GraalVM native image integration
- ✓Well documented
Cons of picocli
No cons listed yet.
picocli Alternatives & Comparisons
What are some alternatives to picocli?
JavaScript
JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.
Python
Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for its elegant syntax and readable code, if you are just beginning your programming career python suits you best.
HTML5
HTML5 is a core technology markup language of the Internet used for structuring and presenting content for the World Wide Web. As of October 2014 this is the final and complete fifth revision of the HTML standard of the World Wide Web Consortium (W3C). The previous version, HTML 4, was standardised in 1997.
