Hi,
I created a base class which contains the product info such as name and price.
I created a derived class which inherited the base class and add 3 new data members:
string demand
string supply
double price
The question is that the demand and supply data members whose values are one of the qualitative values "low", "medium" and "high". I need to compute the product price change based on those values.
Here is the header file:
class Product
{
private:
string name;
double price;
int life;
public:
Product(string na, double pr, int li);
double pricechange();
};
class Fruitublic Product
{
private:
string demand;
string supply;
double percent;
public:
Fruit(string na, double pr, int li, string de, string su, double per):Product(na, pr, li), demand(de), supply(su), percent(per){}
double calpercent(string de, string su, double per);
};
Here is the implementation file:
Product::Product(string na, double pr, int li)
{
name = na;
price = pr;
life = li;
}
double Fruit::calpercent(string de, string su, double per)
{
demand = de;
supply = su;
percent = per;
double dd, ss; // Temp local variables.
if de = "low"
{
dd = -0.3; //Manipulated figure only
}
else if de = "medium"
{
dd = 1;
}
else if de = "high"
{
dd = 1.2;
}
else
{
cout << "Your demand input is wrong." << endl;
}
if su = "low"
{
ss = 1.3;
}
else if su = "medium"
{
ss = 1;
}
else if su = "high"
{
ss = 0.8;
}
else
{
cout << "Your supply input is wrong." << endl;
}
per = dd + ss;
return per;
}
I have not yet done the pricechange() as there are many errors in the calpercent(). I do not know how to pass the low, medium and high values to change the changing price percentage.
Anyone could give me some hints to let me rewrite the code?
Thanks a lot.
gogo