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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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vol_300
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353_02
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boxes1.cpp
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C/C++ Source or Header
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1992-01-19
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1KB
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60 lines
// Chapter 5 - Program 6
#include <iostream.h>
class box {
int length;
int width;
public:
box(void); //Constructor
void set(int new_length, int new_width);
int get_area(void) {return (length * width);}
~box(void); //Destructor
};
box::box(void) //Constructor implementation
{
length = 8;
width = 8;
}
// This method will set a box size to the two input parameters
void box::set(int new_length, int new_width)
{
length = new_length;
width = new_width;
}
box::~box(void) //Destructor
{
length = 0;
width = 0;
}
main()
{
box small, medium, large; //Three boxes to work with
small.set(5, 7);
// Note that the medium box uses the values
// supplied by the constructor
large.set(15, 20);
cout << "The small box area is " << small.get_area() << "\n";
cout << "The medium box area is " << medium.get_area() << "\n";
cout << "The large box area is " << large.get_area() << "\n";
}
// Result of execution
//
// The small box area is 35
// The medium box area is 64
// The large box area is 300