Dairy

#include <iostream>
#include <string>

using namespace std;

// globals!
const int dailyEstimate = 15; // In litres and when well fed.

// base class!
class Animal {
    public: int age;
    public: string name;
    public: string breed;

};

class DairyCow : public Animal {
    protected: int milkProduction;
    public: int feedingCost;

    // estimates milk production based on the cow’s breed and feeding cost
    public: int  calculateMilkYield( DairyCow cow ) {
        cout << "Calculatging MilkYeild for cow named :  !!" << cow.name << endl;
        if ( cow.breed == "Friesian") {
            cow.milkProduction = 25 / cow.age;
        } else if (cow.breed == "Jersey") {
            cow.milkProduction = 18  / cow.age;;
        } else if (cow.breed == "Ayrshire") {
            cow.milkProduction = 17  / cow.age;;
        } else {
            cow.milkProduction = 15  / cow.age;;
        }

        if ( cow.feedingCost > 500 ) {
            cow.milkProduction * 17  / cow.age;;
        } else if ( cow.feedingCost > 300 ) {
            cow.milkProduction * 13  / cow.age;;
        } else {
            cow.milkProduction * dailyEstimate  / cow.age;;
        }

        return cow.milkProduction;

    }
};

int main() {
    DairyCow cow;

    // assign values to props: name, breed, age, feedingCost:
    // @TODO the milkProduction is derived from the above values.
    cout << "Please enter the FOUR cow details ( props ) below ::: " << endl;

    cout << "Enter Cow name : " << endl;
    cin >> cow.name;
    cout << "Entry assignment : Cow name  === " << cow.name << endl;

    cout << "Enter Cow breed eg Friesian, Jersey, Sahiwal etc : " << endl;
    cin >> cow.breed;
    cout << "Entry assignment : Cow breed  === " << cow.breed << endl;

    cout << "Enter Cow age eg 7 (for 7 yrs ): " << endl;
    cin >> cow.age;
    cout << "Entry assignment : Cow age  === " << cow.age << " years" << endl;

    cout << "Enter Cow feedingCost ( Kshs): " << endl;
    cin >> cow.feedingCost;
    cout << "Entry assignment : Cow feedingCost  === " << cow.feedingCost << " Kshs" << endl;
    cout << "Exec calculateMilkYield ..... " << endl;

   cout << "Ze Yield for cow named :: " <<
       cow.name << " is === " <<
           cow.calculateMilkYield( cow ) << endl;

}