햄버거 주문 앱

롯데리아 앱

package ex07.programming.ex06.example7;

public class LotteApp {
    public static void main(String[] args) {
        Burger b1 = new Burger("기본 버거", 1000);
        Burger b2 = new ShrimpBurger("새우 버거", 2000, "새우");
        Coke c1 = new Coke("콜라", 1000);
        System.out.println();
        BurgerSet set1 = new BurgerSet(new Burger("기본 버거", 1000), new Coke("콜라", 1000));
        System.out.println("총 가격은 " + set1.getTotalPrice());
    }
}

기본 버거 클래스

package ex07.programming.ex06.example7;

public class Burger {
    private String name;
    private int price;

    public Burger(String name, int price) {
        this.name = name;
        this.price = price;
        System.out.println(name + "가 만들어졌어요.");
    }

    public String getName() {
        return name;
    }

    public int getPrice() {
        return price;
    }
};

새우 버거 클래스

package ex07.programming.ex06.example7;

public class ShrimpBurger extends Burger {
    private String material;

    public ShrimpBurger(String name, int price, String material) {
        super(name, price);
        this.material = material;
    }

    public String getMaterial() {
        return material;
    }
}

package ex07.programming.ex06.example7;

public class Coke {
    private String name;
    private int price;

    public Coke(String name, int price) {
        this.name = name;
        this.price = price;
        System.out.println(name + "가 만들어졌어요.");
    }

    public String getName() {
        return name;
    }

    public int getPrice() {
        return price;
    }
}

버거 세트 클래스

package ex07.programming.ex06.example7;

public class BurgerSet { // has Burger, Coke
    private Burger burger; // 컴포지션 결합 코드
    private Coke coke;

    public BurgerSet(Burger burger, Coke coke) {
        this.burger = burger;
        this.coke = coke;
        System.out.println("버거 세트가 만들어졌어요. ");
    }

    public int getTotalPrice() {
        return burger.getPrice() + coke.getPrice();
    }

    public Burger getBurger() {
        return burger;
    }

    public Coke getCoke() {
        return coke;
    }
}