?? ducksimulator.java
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package headfirst.combining.adapter;public class DuckSimulator { public static void main(String[] args) { DuckSimulator simulator = new DuckSimulator(); simulator.simulate(); } void simulate() { Quackable mallardDuck = new MallardDuck(); Quackable redheadDuck = new RedheadDuck(); Quackable duckCall = new DuckCall(); Quackable rubberDuck = new RubberDuck(); Quackable gooseDuck = new GooseAdapter(new Goose()); System.out.println("\nDuck Simulator: With Goose Adapter"); simulate(mallardDuck); simulate(redheadDuck); simulate(duckCall); simulate(rubberDuck); simulate(gooseDuck); } void simulate(Quackable duck) { duck.quack(); }}
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