面試題復習-常用設計模式-工廠模式

產品接口：

package com.ajax.pattern.factorymethod;

public interface Fruit {
    void desc();
}

產品1：

package com.ajax.pattern.factorymethod;

public class Apple implements Fruit {
    @Override
    public void desc() {
        System.out.println("蘋果");
    }
}

產品2：

package com.ajax.pattern.factorymethod;

public class Orange implements Fruit {
    @Override
    public void desc() {
        System.out.println("橙子");
    }
}

工廠接口：

package com.ajax.pattern.factorymethod;

public interface FruitFactory {
    Fruit getFruit();
}

產品1工廠：

package com.ajax.pattern.factorymethod;

public class AppleFactory implements FruitFactory {
    @Override
    public Fruit getFruit() {
        return new Apple();
    }
}

產品2工廠：

package com.ajax.pattern.factorymethod;

public class OrangeFactory implements FruitFactory {
    @Override
    public Fruit getFruit() {
        return new Orange();
    }
}

運行：

package com.ajax.pattern.factorymethod;

public class Run {
    public static void main(String[] args) {
        Fruit fruit1 = new AppleFactory().getFruit();
        fruit1.desc();
        Fruit fruit2 = new OrangeFactory().getFruit();
        fruit2.desc();
    }
}