?? duckadapter.java
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package headfirst.adapter.ducks;import java.util.Random;public class DuckAdapter implements Turkey { Duck duck; Random rand; public DuckAdapter(Duck duck) { this.duck = duck; rand = new Random(); } public void gobble() { duck.quack(); } public void fly() { if (rand.nextInt(5) == 0) { duck.fly(); } }}?? 快捷鍵說明
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