每日总结35

软件设计                  石家庄铁道大学信息学院

 

实验4：抽象工厂模式

本次实验属于模仿型实验，通过本次实验学生将掌握以下内容：

1、理解抽象工厂模式的动机，掌握该模式的结构；

2、能够利用抽象工厂模式解决实际问题。

 

[实验任务一]：人与肤色

使用抽象工厂模式，完成下述产品等级结构：

 

实验要求：

 

// 抽象产品类：人

public abstract class Human {

    protected SkinColor skinColor;

 

    public Human(SkinColor skinColor) {

        this.skinColor = skinColor;

    }

 

    public SkinColor getSkinColor() {

        return skinColor;

    }

 

    public abstract void display();

}

 

// 抽象产品类：肤色

public abstract class SkinColor {

    public abstract void display();

}

 

// 具体产品类：亚洲人

public class Asian extends Human {

    public Asian(SkinColor skinColor) {

        super(skinColor);

    }

 

    @Override

    public void display() {

        System.out.println("Asian with " + skinColor);

    }

}

 

// 具体产品类：非洲人

public class African extends Human {

    public African(SkinColor skinColor) {

        super(skinColor);

    }

 

    @Override

    public void display() {

        System.out.println("African with " + skinColor);

    }

}

 

// 具体产品类：欧洲人

public class European extends Human {

    public European(SkinColor skinColor) {

        super(skinColor);

    }

 

    @Override

    public void display() {

        System.out.println("European with " + skinColor);

    }

}

 

// 具体产品类：黄色皮肤

public class Yellow extends SkinColor {

    @Override

    public void display() {

        System.out.println("Yellow Skin");

    }

}

 

// 具体产品类：黑色皮肤

public class Black extends SkinColor {

    @Override

    public void display() {

        System.out.println("Black Skin");

    }

}

 

// 具体产品类：白色皮肤

public class White extends SkinColor {

    @Override

    public void display() {

        System.out.println("White Skin");

    }

}

// 抽象工厂

public interface HumanFactory {

    Human createHuman();

    SkinColor createSkinColor();

}

 

// 具体工厂：亚洲人工厂

public class AsianFactory implements HumanFactory {

    @Override

    public Human createHuman() {

        return new Asian(createSkinColor());

    }

 

    @Override

    public SkinColor createSkinColor() {

        return new Yellow();

    }

}

 

// 具体工厂：非洲人工厂

public class AfricanFactory implements HumanFactory {

    @Override

    public Human createHuman() {

        return new African(createSkinColor());

    }

 

    @Override

    public SkinColor createSkinColor() {

        return new Black();

    }

}

 

// 具体工厂：欧洲人工厂

public class EuropeanFactory implements HumanFactory {

    @Override

    public Human createHuman() {

        return new European(createSkinColor());

    }

 

    @Override

    public SkinColor createSkinColor() {

        return new White();

    }

}

public class Client {

    public static void main(String[] args) {

        HumanFactory factory = new AsianFactory();

        Human human = factory.createHuman();

        human.display();

 

        factory = new AfricanFactory();

        human = factory.createHuman();

        human.display();

 

        factory = new EuropeanFactory();

        human = factory.createHuman();

        human.display();

    }

}