Hands-On Design Patterns with Java

Programming the design pattern

Our CORGI STATELESS SYSTEM consists of eight classes. Our first class is the CorgiState interface. As shown next, there are five interface methods—awake(), eat(), play(), sleep(), and walk(). Each of these methods represents a state for instances of the Corgi class:

package CH9Stateless;public interface CorgiState {    void awake();    void eat();    void play();    void sit();    void sleep();    void walk();}

Our primary object class for the application is the Corgi class, which implements the CorgiState interface. The class is provided in the next eight code sections:

1. The first section contains the class definition and the class variables. These class variables represent the possible states a Corgi object can have:

package ...