package headfirst.combining.factory;public class DuckSimulator {	public static void main(String[] args) {		DuckSimulator simulator = new DuckSimulator();		AbstractDuckFactory duckFactory = new CountingDuckFactory(); 		simulator.simulate(duckFactory);	} 	void simulate(AbstractDuckFactory duckFactory) {		Quackable mallardDuck = duckFactory.createMallardDuck();		Quackable redheadDuck = duckFactory.createRedheadDuck();		Quackable duckCall = duckFactory.createDuckCall();		Quackable rubberDuck = duckFactory.createRubberDuck();		Quackable gooseDuck = new GooseAdapter(new Goose()); 		System.out.println("\nDuck Simulator: With Abstract Factory"); 		simulate(mallardDuck);		simulate(redheadDuck);		simulate(duckCall);		simulate(rubberDuck);		simulate(gooseDuck); 		System.out.println("The ducks quacked " + 		                   QuackCounter.getQuacks() + 		                   " times");	} 	void simulate(Quackable duck) {		duck.quack();	}}