Question

3. write a program that uses a class called "garment" that is derived from the class "fabric" and display some values of measurement. 20 pts.

Based on write a program that uses the class "fabric" to display the square footage of a piece of large fabric.
  
       class fabric
           {
               private:
                   int length;
                   int width;
                   int squareFoot;
               public:
                   int area();
           }

Answer 1

/*
 *  C++ Program for fabric and garment class
 */


#include <iostream>
using namespace std;

class fabric
{
  private:
    int length;
    int width;
    int squareFoot;
  public:
    fabric();
    fabric(int, int);
    int getLength();
    int getWidth();
    int area();
};

fabric :: fabric() : length(0), width(0), squareFoot(0)  {}

fabric :: fabric(int l, int w) : length(l), width(w), squareFoot(l*w)  {}

int fabric :: getLength()
{
  return length;
}

int fabric :: getWidth()
{
  return width;
}

int fabric :: area()
{
  return squareFoot;
}


class garment: public fabric
{
  public:
    garment();
    garment(int l, int w);
    void display();
};

garment :: garment() : fabric(0, 0) {}

garment :: garment(int l, int w) : fabric(l, w)  {}

void garment :: display()
{
  for (int i = 0; i < getLength(); i++)
  {
    for (int j = 0; j < getWidth(); j++)
    {
      cout << "*";
    }
    cout << endl;
  }
}

int main()
{
  const int len = 7;
  const int wid = 5;

  garment bedsheet(7, 5);

  cout << "Print Bedsheet of " << len << "X" << wid << " -" << endl;
  bedsheet.display();

  cout << "Area: " << bedsheet.area() << endl;
  
  return 0;
}

Note: The fabric class methods are not provided hence they are completed by some assumptions, please drop me a comment for queries or optimizations.