Java 簡單原廠模式

標籤：

一、概述

1.目標：要控制任意類型交通工具的生產模式

2.目標有兩層意思(1)任意類型 (2)生產模式，所以對應的，要這兩個層面上抽象(Movable,VehicleFactory)，利用介面，實現多態

 

二、類結構

1.Interface Movable.java

2.Car.java

3.Plane.java

4.Interface VehicleFactory.java

5.CarFactory.java

6.PlaneFactory.java

 

 

三、代碼

1.Movable.java

public interface Movable {void run();}

　　

2.Car.java

public class Car implements Movable {public Car() {}public void run() {System.out.println("Car running...............");}}

　　

3.Plane.java

public class Plane implements Movable {@Overridepublic void run() {System.out.println("飛機飛翔中。。。。");}}

　　

4.VehicleFactory.java

public interface VehicleFactory {Movable create();}

　　

5.CarFactory.java

public class CarFactory implements VehicleFactory {private static Car car = new Car();@Overridepublic Movable create() {return car;}}

　　

6.PlaneFactory.java

public class PlaneFactory implements VehicleFactory {private static Plane plane = new Plane();@Overridepublic Movable create() {return plane;}}

　　

7.Test.java

public class Test {@org.junit.Testpublic void test() {VehicleFactory factory = new CarFactory();Movable m1 = factory.create();m1.run();Movable m2 = factory.create();System.out.println(m1 == m2);System.out.println(m1.equals(m2));System.out.println("******************************");factory = new PlaneFactory();m1 = factory.create();m1.run();m2 = factory.create();System.out.println(m1 == m2);System.out.println(m1.equals(m2));}}

　　

8.測試結果

Java 簡單原廠模式