[Java] 매개변수의 다형성

class Clothes {
	int price;

	Clothes(int price){
		this.price = price;
	}
}

class Shirt extends Clothes{
	Shirt(){
		super(8000); //조상 생성자 호출
	}
}
class Pants extends Clothes{
    Pants(){
    	super(12000);
    }
}

class Buyer {
    long money = 20000;
    
    --------
    void buy(Shirt s){
    	money = money - s.price;
    }
    void buy(Pants p){
    	money = money - p.price;
    }
    --------  //제품 추가마다 메서드 만들어 줘야함,,비효율..!!
    ->
    void buy(Clothes c){
    	money = money - c.price;
	}
	//이런식 다형식 이용
}

Class Test{
	public static void main(String[] args) {
    	Buyer b = new Buyer();
        
        b.buy(new Shirt());
        //->Clothes c = new Shirt();
    
    }
	

}