Complete the code where it says to add code #include <iostream> #include <math.h

Question

Complete the code where it says to add code

#include <iostream>

#include <math.h> // for sqrt()

using namespace std;

class TwoD

{

   protected:

      double x, y; // x and y coordinates

   public:

      // inline implementation of constructor

      TwoD(){x = y = 0.0;} // default constructor

      TwoD(double i, double j):x(i), y(j){}

      // inline implementation of member functions

      void setX(double NewX){x = NewX;}

      void setY(double NewY){y = NewY;}

      double getX() const {return x;}

      double getY() const {return y;}

-=--:----F1 Exercise.cpp   Top L1     (C++/l Abbrev)---------------------------

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      // the TwoD class.

      // YOUR CODE GOES HERE

      // --->ADD CODE HERE<---:

      // Create an inline constructor that initializes the 3D point

      // and reuses the TwoD class.

      // YOUR CODE GOES HERE

      void setZ(double NewZ){z = NewZ;}

      double getZ() const {return z;}

      // get distance for two 3D points

      double getDistance(const ThreeD& point) const;

};

// --->ADD CODE HERE<---:

// Overload the definition of getDistance() of TwoD class so that it

// can calculate the distance between two 3D points

double ThreeD::getDistance(const ThreeD& point) const

{

   // YOUR CODE GOES HERE:

}

// --->ADD CODE HERE<---:

// Implement a main() function.

// You should ask the user for the xyz coordinates of two 3D points,

// and then calculate and print out the distance between these two points.

int main()

{

   // YOUR CODE GOES HERE

}

Explanation / Answer

#include <iostream>

#include <cmath> // for sqrt()

using namespace std;

class TwoD

{

   protected:

      double x, y; // x and y coordinates

   public:

      // inline implementation of constructor

      TwoD(){x = y = 0.0;} // default constructor

      TwoD(double i, double j):x(i), y(j){}

      // inline implementation of member functions

      void setX(double NewX){x = NewX;}

      void setY(double NewY){y = NewY;}

      double getX() const {return x;}

      double getY() const {return y;}

};      // End TwoD class.

class ThreeD : public TwoD {
      // YOUR CODE GOES HERE

  
   protected:

      double z;

   public:

      // inline implementation of constructor

      ThreeD(){z = 0.0;} // default constructor

      ThreeD(double i, double j, double k):TwoD(i,j), z(k){}

      void setZ(double NewZ){z = NewZ;}

      double getZ() const {return z;}

      // get distance for two 3D points

      double getDistance(const ThreeD& point) const;
};

// --->ADD CODE HERE<---:

// Overload the definition of getDistance() of TwoD class so that it

// can calculate the distance between two 3D points

double ThreeD::getDistance(const ThreeD& point) const

{

   double pointX = point.getX();
   double pointY = point.getY();
   double pointZ = point.getZ();

   double distance = sqrt (pow(pointX - getX(),2) + pow(pointY - getY(),2) + pow(pointZ - getZ(),2));
  
   return distance;
}

// --->ADD CODE HERE<---:

// Implement a main() function.

// You should ask the user for the xyz coordinates of two 3D points,

// and then calculate and print out the distance between these two points.

int main()

{

double p1x,p1y,p1z,p2x,p2y,p2z;
ThreeD p1, p2;
cout << "Enter x, y and z of point 1: ";
cin >>p1x >> p1y >> p1z;
p1.setX(p1x);
p1.setY(p1y);
p1.setZ(p1z);
cout << "Enter x, y and z of point 2: ";
cin >>p2x >> p2y >> p2z;
p2.setX(p2x);
p2.setY(p2y);
p2.setZ(p2z);

double distance = p1.getDistance(p2);
cout << "Distance = " << distance << endl;
}

Let me know if you like the code!

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