Mastering Gradle

Groovy script for Hello World

We have discussed what Groovy is and some of its important features. Let us create a Hello World program and feel the magic with Groovy. Here we are assuming that Groovy is installed on the system, GROOVY_HOME is pointing to the installation directory and <GROOVY_HOME>/bin has been added to the PATH environment variable:

file: GroovyTest.groovy
  println "Hello Groovy"

And that's all. Yes, for a simple Groovy program, you don't need to declare any packaging, any main class, or any semicolons, only a simple println statement would create your first Groovy program.

To execute the program, use the following command:

$ groovy GroovyTest.groovy
  Hello Groovy

The groovy command is used to execute the Groovy script. The beauty ...