headfirst.combining.observer

Class MallardDuck

java.lang.Object

headfirst.combining.observer.MallardDuck

All Implemented Interfaces:

Quackable, QuackObservable

public class MallardDuck
extends java.lang.Object
implements Quackable

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Observable	observable

Constructor Summary

Constructors

Constructor and Description
MallardDuck()

Method Summary

Modifier and Type	Method and Description
void	notifyObservers()
void	quack()
void	registerObserver(Observer observer)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

observable

Observable observable

Constructor Detail

MallardDuck

public MallardDuck()

Method Detail

quack

public void quack()

Specified by:

quack in interface Quackable

registerObserver

public void registerObserver(Observer observer)

Specified by:

registerObserver in interface QuackObservable

notifyObservers

public void notifyObservers()

Specified by:

notifyObservers in interface QuackObservable

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object