Calling Scala from Groovy

First write a Scala class:

Complex.scala

Compile this using scalac:

Now write our Groovy Program:

ComplexMain.groovy

Now run the program (assuming scala-library.jar is in the CLASSPATH):

Which produces:

1.2+3.4i

Note that in this example it would have been just as easy to write our Complex class using Groovy as follows:

but in other cases you may have some existing Scala classes you wish to reuse from Groovy.