Here is my code I'm pretty sure the problem has to do with using namespace std and the included header files but I can't figure it out (error string no such file or directory in .h, error iostream no such file or directory in .h,error syntax error before namespace)

box.h:

#ifndef _BOX
#define _BOX

#include <string>
#include <iostream>

using namespace std;


class Box
{
    private:
        double height, width, depth;
        string name;
    public:
        Box();
        Box(double,double,double,string);
        void setHeight(double);
        void setWidth(double);
        void setDepth(double);
        void setName(string);
        double getHeight();
        double getWidth();
        double getDepth();
        double Area();
        double Volume();
        void Display(ostream&);
};

#endif

Box.cpp:

#include "Box.h"
#include <string>
#include <iostream>

using namespace std;

Box::Box()
{
    height = 0;
    width = 0;
    depth = 0;
}
Box::Box(double h,double w,double d)
{
    height = h;
    width = w;
    depth = d;
}
void Box::setHeight(double h)
{
    height = h;
}
void Box::setWidth(double w)
{
    width = w;
}
void Box::setDepth(double d)
{
    depth = d;
}
void Box::setName(string n)
{
    name = n;
}
double Box::getHeight()
{
    return height;
}
double Box::getWidth()
{
    return width;
}
double Box::getDepth()
{
    return depth;
}
std::string Box::getName()
{
    return name;
}
double Box::Area()
{
    return 2 * (height * width) + 2 * (width * depth) + 2 * (height * depth);
}
double Box::Volume()
{
    return height * width * depth;
}
void Box::Display(ostream &output)
{
    output << "Height = " << height << std::endl
           << "Width = " << width << std::endl
           << "Depth = " << depth << std::endl
           << "Name = " << name;
}

boxDriver.cpp:

#include "Box.h"
#include <iostream>
#include <string>

using namespace std;

int main()
{
    cout << "\n\n OUTPUT FROM SAMPLE DRIVER\n\n\n";

    Box a(5, 2.3, 10.1);
    a.setName("Box 1");


	cout << "CALL DISPLAY FUNCTION \n";
	a.Display(cout);
	cout << endl;
    cout << "\n*** END Display Function *** \n\n";


    cout << "Area = "   << a.Area()   << endl;
    cout << "Volume = " << a.Volume() << endl;

    cout << "\n\n*******************  Second Box ***********************\n\n\n";
	Box b;

	// Set Attributes

	b.setHeight(2.7);
	b.setWidth(24.05);
	b.setDepth(3.22);
	b.setName("Box 2");

	cout << "CALL DISPLAY FUNCTION \n";
	b.Display(cout);
	cout << endl;
    cout << "\n*** END Display Function *** \n\n";


    cout << "Area = "   << b.Area()   << endl;
    cout << "Volume = " << b.Volume() << endl;;

    cin.get();
	return 0;
}

Thanks

>>error string no such file or directory in .h
What compiler are you using? That error would indicate you are usiing something readlly really old, like ancient Turbo C what knows nothing about <string> header file.

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