Groovy is an object-oriented programming language for the Java platform. It is a dynamic language with features similar to those of Python, Ruby, Perl and Smalltalk. It can be used as a scripting language for the Java platform.
Apache Groovy is a powerful, optionally typed and dynamic language, with static-typing and static compilation capabilities, for the Java platform aimed at improving developer productivity thanks to a concise, familiar and easy to learn syntax. It integrates smoothly with any Java program, and immediately delivers to your application powerful features, including scripting capabilities, Domain-Specific Language authoring, runtime and compile-time meta-programming and functional programming.
Groovy is an object-oriented, agile and dynamic language for the Java Virtual Machine. It builds upon the strengths of Java but has additional power features inspired by languages like Python, Ruby and Smalltalk. It makes modern programming features available to Java developers with almost zero learning curve. It can be used as a scripting language for the Java Platform. From wikipedia
Flat learning curve:
Concise, readable and expressive syntax, easy to learn for Java developers
Closures, builders, runtime & compile-time meta-programming, functional programming, type inference, and static compilation
Smooth Java integration:
Seamlessly and transparently integrates and interoperates with Java and any third-party libraries
Flexible & malleable syntax, advanced integration & customization mechanisms, to integrate readable business rules in your applications
Vibrant and rich ecosystem:
Web development, reactive applications, concurrency / asynchronous / parallelism library, test frameworks, build tools, code analysis, GUI building
Scripting and testing glue:
Great for writing concise and maintainable tests, and for all your build and automation tasks
Latest Version: 2.5