(10) Bridging mode-code implementation

Intention: To separate the abstract part from its implementation, so that they can all change independently.

Usage scenario: When there are multiple method definitions in one port, there are many different implementations of its methods, in order to avoid repeating the same methods in subclasses.

Peel Function 1 interface

 Package Note.com.bridge; /**  @author*/Publicinterface  icolour        {  publicvoid  buildcolour ();    }

Feature 1 implementation

 package   Note.com.bridge;  public  class  Blue implements   icolour{ public  void   Buildcolour () {System.out.    println ( "Blue" ); }}

 Package Note.com.bridge;  Public class Implements icolour{    publicvoid  buildcolour () {        System.out.println ("Red");}    } 

Peel function 2 interface

 Package Note.com.bridge; /**  @author*/Publicinterface  itaste    {  publicvoid  buildtaste ();    }

Feature 2 Implementation

 package   Note.com.bridge;  /**   * Sweet *   @author   Lxz *  */ public  class  Sweet implements   itaste{ public  void   Buildtaste () {SYSTEM.OUT.P    Rintln ( "Sweet" ); }}

 Package Note.com.bridge; /**  @author*/Publicclassimplements  itaste{      Public void Buildtaste () {        System.out.println ("sour");}    }

A true functional interface

 PackageNote.com.bridge;/*** Beverage base class *@authorLXZ **/ Public Abstract classAdrink {PrivateIcolour colour =NULL; PrivateItaste taste =NULL;  Publicadrink (icolour colour,itaste taste) { This. Colour =colour;  This. Taste =Taste; }         Public Abstract voidfinish ();  PublicIcolour Getcolour () {returncolour; }     Public voidSetcolour (Icolour colour) { This. Colour =colour; }     Publicitaste Gettaste () {returnTaste; }     Public voidsettaste (Itaste taste) { This. Taste =Taste; }            }

Functional interface Implementation Class

 Package Note.com.bridge;  Public class extends adrink{    public  Drink (icolour colour,itaste taste) {        super( colour,taste);    }        @Override    publicvoid  finish () {        System.out.println ("wine:");        Getcolour (). Buildcolour ();        Gettaste (). Buildtaste ();    }}

Test class

 PackageNote.com.bridge; Public classDrinktest { Public Static voidMain (string[] args) {Icolour Blue=NewBlue (); Itaste Sweet=NewSweet (); Drink Drink1=NewDrink (Blue,sweet);        Drink1.finish (); Icolour Red=NewRed (); Itaste Sour=NewSour (); Drink Drink2=NewDrink (Red,sour);    Drink2.finish (); }}

Results

Wine:
Blue
Sweet
Wine:
Red
Sour

(10) Bridging mode-code implementation