Write a class called Box that has three double fields called height, width and l

ID: 3664632 • Letter: W

Question

Write a class called Box that has three double fields called height, width and length. The class should have set methods for each field. It should have a three-parameter constructor that takes three doubles and passes them to the set methods to initialize the fields of the Box. It should have a default constructor that uses the set methods to initialize each field to 1. It should have a method that calculates and returns the volume of the Box and a method that calculates and returns the surface area of the Box. The class declaration (interface) and the function definitions (implementation) must be in separate files - the interface or "header" file has a .hpp extension and the implementation has a .cpp extension. All data members should be private.

Your functions should have the following names:

setHeight

setWidth

setLength

getVolume

getSurfaceArea

The files must be named: Box.hpp and Box.cpp

About using multiple files:

-Box.hpp should have "include guards" as discussed on page 447 (use "BOX_HPP").

-Box.cpp needs to #include Box.hpp. When you include your own .hpp files (header files), put double quotes around them instead of angled brackets. (You should only #include .hpp files, not .cpp files.)

-When testing your program with your own main method, put it in a separate file (this is the "client" code) and give it a name with a .cpp extension.

-Your main method also needs to #include Box.hpp.

-If you named the file with your main method "boxMain.cpp", then you can compile your program with "g++ Box.cpp boxMain.cpp -o box".

Explanation / Answer

As per given problem Box class is implemented with setter and getSurfaceArea and getVolume methods
To calculate the SurfaceArea and Volume of given Box Parameters.

See the below Code..

#include <iostream>
using namespace std;

// Box Class
class Box
{

// Box Class Data Members
private:
    double Length;
    double Height;
    double Width;
public:
// Parametrised Box Constructor
    Box(double Length1, double Width1,double Height1)
    {
        Length = Length1;
        Width = Width1;
        Height = Height1;
    }

// Default Constructor
    Box()
    {
        Length = 0.0;
        Width = 0.0;
        Height = 0.0;
    }
// Setter for Height, Length and Width
    void setLength(double Length1)
    {
        Length = Length1;
    }

    void setHeight(double Height1)
    {
        Height = Height1;
    }

    void setWidth(double Width1)
    {
        Width = Width1;
    }
// Volume Method
    double getVolume()
    {
        return (Length * Width * Height);
    }
// SurfaceArea Method
    double getSurfaceArea()
    {
        return (2.0 * ((Height * Width) +
                  (Length * Height) +
                  (Length * Width)));
    }
};

int main()
{
// Calling Box Object
    Box box1(8,4,5); //Initializing box1 data members
// Volume and surfaceArea value printing
    double boxVolume = box1.getVolume();
    double surfaceArea = box1.getSurfaceArea();
    cout << "Volume of Box = " << boxVolume <<" SurfaceArea of Box is = "<<surfaceArea<< endl;

return 1;

}

Output:

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Write a class called Box that has three double fields called height, width and l

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Write a class called Box that has three double fields called height, width and l

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