/**
 * Chapter 8:		Classes
 * Section 8.1.4:	Superclasses and Subclasses
 * Author:		Ken Barclay
 *
 * File:		superinterfaces.classes.8.1.4.groovy
 *
 * The optional implements clause introduces one or more interfaces that
 *   are the direct superinterfaces of the declared class.
 *
 * An interface name may occur at most once in the implements clause.
 */

interface Person {
}

class Employee implements Person, Person {
}