## 1. 适配器（Adapter）
### Intent
把一个类接口转换成另一个用户需要的接口。
### Class Diagram
### Implementation
鸭子（Duck）和火鸡（Turkey）拥有不同的叫声，Duck 的叫声调用 quack() 方法，而 Turkey 调用 gobble() 方法。
要求将 Turkey 的 gobble() 方法适配成 Duck 的 quack() 方法，从而让火鸡冒充鸭子！
```java
public interface Duck {
void quack();
}
```
```java
public interface Turkey {
void gobble();
}
```
```java
public class WildTurkey implements Turkey {
@Override
public void gobble() {
System.out.println("gobble!");
}
}
```
```java
public class TurkeyAdapter implements Duck {
Turkey turkey;
public TurkeyAdapter(Turkey turkey) {
this.turkey = turkey;
}
@Override
public void quack() {
turkey.gobble();
}
}
```
```java
public class Client {
public static void main(String[] args) {
Turkey turkey = new WildTurkey();
Duck duck = new TurkeyAdapter(turkey);
duck.quack();
}
}
```
### JDK
- [java.util.Arrays#asList()](http://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html#asList%28T...%29)
- [java.util.Collections#list()](https://docs.oracle.com/javase/8/docs/api/java/util/Collections.html#list-java.util.Enumeration-)
- [java.util.Collections#enumeration()](https://docs.oracle.com/javase/8/docs/api/java/util/Collections.html#enumeration-java.util.Collection-)
- [javax.xml.bind.annotation.adapters.XMLAdapter](http://docs.oracle.com/javase/8/docs/api/javax/xml/bind/annotation/adapters/XmlAdapter.html#marshal-BoundType-)
