[Hackerrank] Advanced - Factory Pattern 풀이

예문

https://www.hackerrank.com/challenges/java-factory/problem

Sample Input

cake

Sample Ouput

The factory returned class Cake
Someone ordered a Dessert!

해석

Factory Pattern 구현

풀이

Factory 에서 문자열 비교로 생성
Enum으로 관리 하는 방법도 있음

제약사항

코드

interface Food {
    String getType();
}

class Pizza implements Food {
    public String getType() {
        return "Someone ordered a Fast Food!";
    }
}

class Cake implements Food {
    public String getType() {
        return "Someone ordered a Dessert!";
    }
}

class FoodFactory {
    public Food getFood(String order) {
        if ("pizza".equals(order))
            return new Pizza();
        else if ("cake".equals(order))
            return new Cake();
        else
            return null;
    }
}