/**
 * Chapter 8:		Classes
 * Section 8.4:		Method Declarations
 * Author:		Ken Barclay
 *
 * File:		final.parameter.declaration.classes.8.4.groovy
 *
 * A class declaration may include any number of method declarations including
 *   abstract method declarations.
 *
 * A method is given a name and an optional list of formal parameter declarations
 *   enclosed in parentheses ( and ). A parameter declaration at its simplest is
 *   simply a parameter name. It may be prefixed with a combination of optional
 *   parameter modifiers (def or final), a type, or a type followed by the varargs
 *   symbol (...). Two formal parameters with the same name is disallowed.
 *
 * A formal parameter may be optionally initialized with an expression, referred
 *   to as a default parameter. If the number of actual parameters is fewer than
 *   the number of formal parameters, then each actual is used to initialize, in
 *   order, the non-default formal parameters. When all the actual parameters are
 *   used in this manner, all subsequent formal parameters require default values.
 *
 * A formal parameter may be qualified as final. It is an error to assign a new
 *   value to such an object.
 */

class Person {

    def			dump(final x) {
        println "x (before): ${x}"
        x = 'Barclay'
        println "x (after): ${x}"
    }
}

def p = new Person()
p.dump('Ken')