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Groovy...
- is an agile and dynamic language for the Java Virtual Machine
- builds upon the strengths of Java but has additional power features inspired by languages like Python, Ruby and Smalltalk
- makes modern programming features available to Java developers with almost-zero learning curve
- supports Domain-Specific Languages and other compact syntax so your code becomes easy to read and maintain
- makes writing shell and build scripts easy with its powerful processing primitives, OO abilities and an Ant DSL
- increases developer productivity by reducing scaffolding code when developing web, GUI, database or console applications
- simplifies testing by supporting unit testing and mocking out-of-the-box
- seamlessly integrates with all existing Java classes and libraries
- compiles straight to Java bytecode so you can use it anywhere you can use Java
Experience the latest Groovy 1.8
Groovy 1.8, the latest major and stable version of the popular dynamic language for the JVM, has been released. To learn more about the novelties, make sure to read the release notes. In a nutshell, Groovy 1.8 provides new Domain-Specific Language authoring capabilities for more readability and expressivity of your business rules, runtime performance improvements, the bundling of the GPars parallel and concurrency library, built-in JSON support, new compile-time meta-programming features (several new useful AST transformations), new functional programming aspects for closures, and much more.
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"Groovy is like a super version of Java. It can leverage Java's enterprise capabilities but also has cool productivity features like closures, builders and dynamic typing. If you are a developer, tester or script guru, you have to love Groovy."
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SamplesA simple hello world script: def name='World'; println "Hello $name!"
class Greet {
def name
Greet(who) { name = who[0].toUpperCase() +
who[1..-1] }
def salute() { println "Hello $name!" }
}
g = new Greet('world') // create object
g.salute() // Output "Hello World!"
import static org.apache.commons.lang.WordUtils.*
class Greeter extends Greet {
Greeter(who) { name = capitalize(who) }
}
new Greeter('world').salute()
groovy -e "println 'Hello ' + args[0]" World
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Documentation [more]
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