/* TQC+ JAVA6 - 603_2 */

class Unit{
	double cost,price;
	Unit(){
		cost = 0.0;
		price = 0.0;
	}
	public double getCost(){
		return cost;
	}
	public double getPrice(){
		return price;
	}
}

class Apple extends Unit{
	Apple(){
		cost = 6.0;
		price=10.0;
	}
}
class Banana extends Unit{
	Banana(){
		cost = 2.0;
		price=5.0;
	}
}
class Pudding extends Unit{
	Pudding(){
		cost = 3.0;
		price=5.0;
	}
}
class Strawberry extends Unit{
	Strawberry(){
		cost = 1.0;
		price=5.0;
	}
}
class Mango extends Unit{
	Mango(){
		cost = 2.0;
		price=5.0;
	}
}

//建立一個抽象的 product方法，供A、B套餐繼承
abstract class product{
	product(){}
	//抽象取得成本
	abstract double getCost();
	//抽象取得售價
	abstract double getPrice();
	//建立利潤方法
	double getProfit(){
		return getPrice()-getCost();
	}
}

//A套餐方法
class A extends product{
	Unit a1,a2;
	//建構子，傳入兩個參數，供初始化
	A(Unit b1,Unit b2){
		a1=b1;
		a2=b2;
	}
	double getCost(){
		return a1.getCost()+a2.getCost();
	}
	double getPrice(){
		return a1.getPrice()+a2.getPrice();
	}
}
//B套餐方法
class B extends product{
	Unit a1,a2,a3;
	//建構子，傳入三個參數，供初始化
	B(Unit b1,Unit b2,Unit b3){
		a1=b1;
		a2=b2;
		a3=b3;
	}
	double getCost(){
		return a1.getCost()+a2.getCost()+a3.getCost();
	}
	double getPrice(){
		return a1.getPrice()+a2.getPrice()+a3.getPrice();
	}
}
class JPA06_2 {
	public static void main(String args[]) {
		//產生A套餐的物件，並傳入兩個原料物件
		A t1 = new A(new Apple(), new Banana());
    	//產生B套餐的物件，並傳入三個原料物件
		B t2 = new B(new Banana(), new Pudding(), new Strawberry());
		B t3 = new B(new Apple(), new Banana(), new Mango());

		System.out.println("t1 price:" + t1.getPrice());
		System.out.println("t1 profit:" + t1.getProfit());
		System.out.println("t2 price:" + t2.getPrice());
		System.out.println("t2 profit:" + t2.getProfit());
		System.out.println("t3 price:" + t3.getPrice());
		System.out.println("t3 profit:" + t3.getProfit());
	}
}