headfirst.combining.observer

Class Flock

java.lang.Object

headfirst.combining.observer.Flock

All Implemented Interfaces:

Quackable, QuackObservable

public class Flock
extends java.lang.Object
implements Quackable

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.util.ArrayList<Quackable>	ducks

Constructor Summary

Constructors

Constructor and Description
Flock()

Method Summary

Modifier and Type	Method and Description
void	add(Quackable duck)
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

ducks

java.util.ArrayList<Quackable> ducks

Constructor Detail

Flock

public Flock()

Method Detail

add

public void add(Quackable duck)

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