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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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objstrng.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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65 lines
// Chapter 6 - Program 2
#include <iostream.h>
class box {
int length;
int width;
char *line_of_text;
public:
box(char *input_line); //Constructor
void set(int new_length, int new_width);
int get_area(void);
};
box::box(char *input_line) //Constructor implementation
{
length = 8;
width = 8;
line_of_text = input_line;
}
// 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;
}
// This method will calculate and return the area of a box instance
int box::get_area(void)
{
cout << line_of_text << "= ";
return (length * width);
}
main()
{
box small("small box "), //Three boxes to work with
medium("medium box "),
large("large box ");
small.set(5, 7);
large.set(15, 20);
cout << "The area of the ";
cout << small.get_area() << "\n";
cout << "The area of the ";
cout << medium.get_area() << "\n";
cout << "The area of the ";
cout << large.get_area() << "\n";
}
// Result of execution
//
// The area of the small box = 35
// The area is the medium box = 64
// The area is the large box = 300