Question

C++ Programming

Convert problems 6 in to template classes, of week 5 and week 4.

Test each with Implicit int, float, double, long int.

Test each with explicit int, float, double, long int.

Problem 6:

//Box.h

#include<iostream>

using namespace std;

class Box

{

public:

   double Length;

   double Width;

   double Height;

public:

   //Default constructor

   Box();

   //Parameterized constructor

   Box(double ,double,double);

   //Setter methods

   void setWidth ( double n ) ;

   void setDepth ( double n ) ;

   void setHeight ( double n );

   //getter methods

   double getWidth () ;

   double getHeight ();

   double getDepth () ;

   //Methods to calculate area and volume of box

   double calcArea () ;

   double calcVolume () ;

};

//Box.cpp

#include <iostream>

#include "Box.h"

using namespace std;

//default constructor

Box::Box()

{

   Length = 0;

   Width = 0;

   Height = 0;

}

//parameterized constructor

Box::Box(double l,double w, double h)

{

   Length = l;

   Width = w;

   Height = h;

}

void Box::setWidth ( double n )

{

   Width = n;

}

void Box::setDepth ( double n )

{

   Length = n;

}

void Box::setHeight ( double n )

{

   Height = n;

}

double Box::getWidth ()

{

   return Width;

}

double Box::getHeight ()

{

   return Height;

}

double Box::getDepth ()

{

   return Length;

}

double Box::calcArea ()

{

   return 2*(Length*(Width+Height)+Width*Height);

}

double Box::calcVolume ()

{

   return Length*Width*Height;

}

------

//main.cpp

#include<iostream>

#include<string>

#include "Box.h"

using namespace std;

//start of main method

int main()

{

cout<<"Name";

   string myName= "yourname";

cout<<"Name: "<<myName<<endl;

   //default constructor

Box B1;

   cout<<"Testing default constructor"<<endl;

cout << "Height = " << B1.getHeight() << endl;

cout << "Area = " << B1.calcArea() << endl;

cout << "Volume = " << B1.calcVolume() << endl;

   //parmeter constructor

Box B2(1,2,3);

   cout<<"Testing parameterized constructor"<<endl;

cout << "Height = " << B2.getHeight() << endl;

cout << "Area = " << B2.calcArea() << endl;

cout << "Volume = " << B2.calcVolume() << endl;

Box B3;

B3.setWidth(3);

B3.setDepth(5);

B3.setHeight(10);

   cout<<"Testing functions "<<endl;

cout << "Height = " << B3.getHeight() << endl;

cout << "Area = " << B3. calcArea() << endl;

cout << "Volume = " << B3.calcVolume() << endl;

   system("pause");

   return 0;

}

Answer 1

If you have any doubts, please give me comment...

Box.h

#ifndef BOX_H

#define BOX_H

//Box.h

#include <iostream>

using namespace std;

template <class T>

class Box

{

public:

    T Length;

    T Width;

    T Height;

public:

    //Default constructor

    Box();

    //Parameterized constructor

    Box(T, T, T);

    //Setter methods

    void setWidth(T n);

    void setDepth(T n);

    void setHeight(T n);

    //getter methods

    T getWidth();

    T getHeight();

    T getDepth();

    //Methods to calculate area and volume of box

    double calcArea();

    double calcVolume();

};

#endif

Box.cpp

//Box.cpp

#include <iostream>

#include "Box.h"

using namespace std;

//default constructor

template<class T>

Box<T>::Box()

{

    Length = 0;

    Width = 0;

    Height = 0;

}

//parameterized constructor

template<class T>

Box<T>::Box(T l, T w, T h)

{

    Length = l;

    Width = w;

    Height = h;

}

template<class T>

void Box<T>::setWidth(T n)

{

    Width = n;

}

template<class T>

void Box<T>::setDepth(T n)

{

    Length = n;

}

template<class T>

void Box<T>::setHeight(T n)

{

    Height = n;

}

template<class T>

T Box<T>::getWidth()

{

    return Width;

}

template<class T>

T Box<T>::getHeight()

{

    return Height;

}

template<class T>

T Box<T>::getDepth()

{

    return Length;

}

template<class T>

double Box<T>::calcArea()

{

    return 2 * (Length * (Width + Height) + Width * Height);

}

template<class T>

double Box<T>::calcVolume()

{

    return Length * Width * Height;

}

main.cpp

#include <iostream>

#include <string>

#include "Box.h"

using namespace std;

//start of main method

int main()

{

    cout << "Name";

    string myName = "yourname";

    cout << "Name: " << myName << endl;

    //default constructor

    Box<int> B11;

    cout<<"\n\nDatatype: int"<<endl;

    cout << "Testing default constructor" << endl;

    cout << "Height = " << B11.getHeight() << endl;

    cout << "Area = " << B11.calcArea() << endl;

    cout << "Volume = " << B11.calcVolume() << endl;

    //parmeter constructor

    Box<int> B12(1, 2, 3);

    cout << "Testing parameterized constructor" << endl;

    cout << "Height = " << B12.getHeight() << endl;

    cout << "Area = " << B12.calcArea() << endl;

    cout << "Volume = " << B12.calcVolume() << endl;

    Box<int> B13;

    B13.setWidth(3);

    B13.setDepth(5);

    B13.setHeight(10);

    cout << "Testing functions " << endl;

    cout << "Height = " << B13.getHeight() << endl;

    cout << "Area = " << B13.calcArea() << endl;

    cout << "Volume = " << B13.calcVolume() << endl;

    //float

    cout<<"\n\nDatatype: float"<<endl;

    Box<float> B21;

    cout << "Testing default constructor" << endl;

    cout << "Height = " << B21.getHeight() << endl;

    cout << "Area = " << B21.calcArea() << endl;

    cout << "Volume = " << B21.calcVolume() << endl;

    //parmeter constructor

    Box<float> B22(1, 2, 3);

    cout << "Testing parameterized constructor" << endl;

    cout << "Height = " << B22.getHeight() << endl;

    cout << "Area = " << B22.calcArea() << endl;

    cout << "Volume = " << B22.calcVolume() << endl;

    Box<float> B23;

    B23.setWidth(3.0);

    B23.setDepth(5.0);

    B23.setHeight(10.0);

    cout << "Testing functions " << endl;

    cout << "Height = " << B23.getHeight() << endl;

    cout << "Area = " << B23.calcArea() << endl;

    cout << "Volume = " << B23.calcVolume() << endl;

    //double

    cout<<"\n\nDatatype: double"<<endl;

    Box<double> B31;

    cout << "Testing default constructor" << endl;

    cout << "Height = " << B31.getHeight() << endl;

    cout << "Area = " << B31.calcArea() << endl;

    cout << "Volume = " << B31.calcVolume() << endl;

    //parmeter constructor

    Box<double> B32(1.0, 2.0, 3.0);

    cout << "Testing parameterized constructor" << endl;

    cout << "Height = " << B32.getHeight() << endl;

    cout << "Area = " << B32.calcArea() << endl;

    cout << "Volume = " << B32.calcVolume() << endl;

    Box<double> B33;

    B33.setWidth(3.0);

    B33.setDepth(5.0);

    B33.setHeight(10.0);

    cout << "Testing functions " << endl;

    cout << "Height = " << B33.getHeight() << endl;

    cout << "Area = " << B33.calcArea() << endl;

    cout << "Volume = " << B33.calcVolume() << endl;

    //long int

    cout<<"\n\nDatatype: long int"<<endl;

    Box<long int> B41;

    cout << "Testing default constructor" << endl;

    cout << "Height = " << B41.getHeight() << endl;

    cout << "Area = " << B41.calcArea() << endl;

    cout << "Volume = " << B41.calcVolume() << endl;

    //parmeter constructor

    Box<long int> B42(1, 2, 3);

    cout << "Testing parameterized constructor" << endl;

    cout << "Height = " << B42.getHeight() << endl;

    cout << "Area = " << B42.calcArea() << endl;

    cout << "Volume = " << B42.calcVolume() << endl;

    Box<long int> B43;

    B43.setWidth(3);

    B43.setDepth(5);

    B43.setHeight(10);

    cout << "Testing functions " << endl;

    cout << "Height = " << B43.getHeight() << endl;

    cout << "Area = " << B43.calcArea() << endl;

    cout << "Volume = " << B43.calcVolume() << endl;

    // system("pause");

    return 0;

}