headfirst.combining.observer

Interface QuackObservable

All Known Subinterfaces:

Quackable

All Known Implementing Classes:

DecoyDuck, DuckCall, Flock, GooseAdapter, MallardDuck, Observable, QuackCounter, RedheadDuck, RubberDuck

public interface QuackObservable

Method Summary

Modifier and Type	Method and Description
void	notifyObservers()
void	registerObserver(Observer observer)

Method Detail

registerObserver

void registerObserver(Observer observer)

notifyObservers

void notifyObservers()