Introduction to Groovy
Groovy is an agile and dynamic language for the Java Virtual Machine that builds upon the strengths of Java but has additional powerful features inspired by languages such as Python, Ruby, and Smalltalk. It seamlessly integrates with all existing Java classes and libraries and compiles to Java bytecode so you can use it anywhere you can use Java. Groovy provides the ability to statically type check and statically compile your code for robustness and performance and supports domain-specific languages and other compact syntax so your code becomes easy to read and maintain.
Groovy makes modern programming features available to Java developers with almost zero learning curve; increases developer productivity ...