DuckSimulator.java

package MultiPatterns.DuckSimulatorExample;

public class DuckSimulator {
    public static void main(String[] args){
        DuckSimulator simulator = new DuckSimulator();
        AbstractDuckFactory duckFactory = new AbstractCountingDucks();
        simulator.simulate(duckFactory);
    }

    void simulate(AbstractDuckFactory duckFactory){
        Quackable redheadDuck = duckFactory.createRedheadDuck();
        Quackable duckCall = duckFactory.createDuckCall();
        Quackable rubberDuck = duckFactory.createRubberDuck();
        Quackable gooseDuck = new GooseAdapter(new Goose());
        System.out.println("\nDuck Simulator: With Composite -Flocks");

        Flock flockOfDucks = new Flock();
        flockOfDucks.add(redheadDuck);
        flockOfDucks.add(duckCall);
        flockOfDucks.add(rubberDuck);
        flockOfDucks.add(gooseDuck);

        Flock flockOfMallards = new Flock();

        Quackable mallardOne = duckFactory.createMallardDuck();
        Quackable mallardTwo = duckFactory.createMallardDuck();
        Quackable mallardThree = duckFactory.createMallardDuck();
        Quackable mallardFour = duckFactory.createMallardDuck();

        flockOfMallards.add(mallardOne);
        flockOfMallards.add(mallardTwo);
        flockOfMallards.add(mallardThree);
        flockOfMallards.add(mallardFour);

        flockOfDucks.add(flockOfMallards);

        System.out.println("\nDuck Simulator: With Observer");

        Quackologist quackologist = new Quackologist();
        flockOfDucks.registerObserver(quackologist);

        System.out.println("\nDuck Simulator: Whole Flock Simulation");
        simulate(flockOfDucks);

        System.out.println("\nDuck Simulator: Mallard Flock Simulation");
        simulate(flockOfMallards);


        System.out.println("The ducks quacked " + QuackCounter.getQuacks() + " times");
    }

    void simulate(Quackable duck){
        duck.quack();
    }
}