Groovy -Scripting for Java
Groovy is an open-source scripting language that is implemented in Java and is tightly integrated with it. It requires Java\'s JDK 1.4. Groovy adds some features of the Ruby and Python scripting languages to Java. Features of G
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Groovy scripts can use any Java classes. They can be compiled to Java bytecode that can be invoked from normal Java classes. The Groovy compiler, groovyc, compiles both Groovy scripts and Java source files, however some Java syntax
In theory, entire applications could be written in Groovy that would have similar performance characteristics to an equivalent Java application. This distinguishes Groovy from other scripting languages such as Ruby, Python, Perl and BeanShell. One of the things that makes Groovy perform more slowly than Java today is that the generated bytecode uses reflection to call constructors and private/protected methods.
This article doesn\'t cover every feature of Groovy, but it covers a large number of them. It assumes that you are familiar enough with Java syntax to be able to compare Java syntax to Groovy syntax.
If we could all agree on what makes a good programming language syntax then we wouldn\'t need so many of them. Based on the number of programming languages out there, we obviously don\'t agree. After reading this article, you may decide that you like Java syntax just fine and that Groovy syntax is just too much syntactic sugar for your tastes. If that is your conclusion, I encourage you to investigate BeanShell from Pat Niemeyer at http://www.beanshell.org. It sticks much closer to standard Java syntax. On the other hand, if you prefer the shorter syntax of Groovy then that\'s just groovy
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