Inheritance_008.cpp

// multiple inheritance with English Distances
#include <iostream>
#include <string>
using namespace std;
////////////////////////////////////////////////////////////////
class Type //type of lumber
{
private:
    string dimensions;
    string grade;
public: //no-arg constructor
    Type() : dimensions("N/A"), grade("N/A")
    { }
//2-arg constructor
    Type(string di, string gr) : dimensions(di), grade(gr)
    { }
    void gettype() //get type from user
    {
        cout << " Enter nominal dimensions (2x4 etc.): ";
        cin >> dimensions;
        cout << " Enter grade (rough, const, etc.): ";
        cin >> grade;
    }
    void showtype() const //display type
    {
        cout << "\n Dimensions: " << dimensions;
        cout << "\n Grade: " << grade;
    }
};
////////////////////////////////////////////////////////////////
class Distance //English Distance class
{
private:
    int feet;
    float inches;
public: //no-arg constructor
    Distance() : feet(0), inches(0.0)
    { } //constructor (two args)
    Distance(int ft, float in) : feet(ft), inches(in)
    { }
    void getdist() //get length from user
    {
        cout << " Enter feet: ";
        cin >> feet;
        cout << " Enter inches: ";
        cin >> inches;
    }
    void showdist() const //display distance
    {
        cout << feet << "\'-" << inches << '\"';
    }
};
////////////////////////////////////////////////////////////////
class Lumber : public Type, public Distance
{
private:
    int quantity; //number of pieces
    double price; //price of each piece
public: //constructor (no args)
    Lumber() : Type(), Distance(), quantity(0), price(0.0)
    { }
//constructor (6 args)
    Lumber( string di, string gr, //args for Type
            int ft, float in, //args for Distance
            int qu, float prc ) : //args for our data
        Type(di, gr), //call Type ctor
        Distance(ft, in), //call Distance ctor
        quantity(qu), price(prc) //initialize our data
    { }
    void getlumber()
    {
        Type::gettype();
        Distance::getdist();
        cout << " Enter quantity: ";
        cin >> quantity;
        cout << " Enter price per piece: ";
        cin >> price;
    }
    void showlumber() const
    {
        Type::showtype();
        cout << "\n Length: ";
        Distance::showdist();
        cout << "\n Price for " << quantity
             << " pieces: $" << price * quantity;
    }
};
////////////////////////////////////////////////////////////////
int main()
{
    Lumber siding; //constructor (no args)
    cout << "\nSiding data:\n";
    siding.getlumber(); //get siding from user
//constructor (6 args)
    Lumber studs( "2x4", "const", 8, 0.0, 200, 4.45F );
//display lumber data
    cout << "\nSiding";
    siding.showlumber();
    cout << "\nStuds";
    studs.showlumber();
    cout << endl;
    return 0;
}