适配器模式

适配器模式:
一个笔记本需要三相插口充电，然而现在只有双相电，需要为其创建适配器。

//提供双相电public class Two(){public void chargewithTwo(){   System out println("用双相电充电")  }}

//三相电接口public interface Three(){   public void chargewithThree();}

//适配器需要实现要转换的接口，并在构造函数中接收被转换的对象public class TwoToThreeAdapter implements Three(){    private Two Two;    public TwoToThreeAdapter(Two two){        this.two=two;    }    public void chargewithThree(){        two.chargewithTwo();    }}

//笔记本public class NoteBook(){   private Three three;   public NoteBook(Three three){      this.three=three;   }   public  void charge(){      three.chargewithThree();   }   public static  main(String[] args){   //只提供了双相电    Two two = new Two();   //将双相电转换为三相的接口    Three three  = new TwoToThreeAdapter(two);   //为笔记本提供三相的接口    NoteBook book = new NoteBook(three);   //为笔记本充电    book.charge();    } }