Category : C++ Source Code
Archive   : CPPTUT.ZIP
Filename : OBJARRAY.CPP

 
Output of file : OBJARRAY.CPP contained in archive : CPPTUT.ZIP
// Chapter 6 - Program 1
#include

class box {
int length;
int width;
static int extra_data; // Declaration of extra_data
public:
box(void); //Constructor
void set(int new_length, int new_width);
int get_area(void);
int get_extra(void) {return extra_data++;}
};


int box::extra_data; // Definition of extra_data


box::box(void) //Constructor implementation
{
length = 8;
width = 8;
extra_data = 1;
}


// 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)
{
return (length * width);
}


main()
{
box small, medium, large, group[4]; //Seven boxes to work with

small.set(5, 7);
large.set(15, 20);

for (int index = 1 ; index < 4 ; index++) //group[0] uses default
group[index].set(index + 10, 10);

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";

for (index = 0 ; index < 4 ; index++)
cout << "The array box area is " <<
group[index].get_area() << "\n";

cout << "The extra data value is " << small.get_extra() << "\n";
cout << "The extra data value is " << medium.get_extra() << "\n";
cout << "The extra data value is " << large.get_extra() << "\n";
cout << "The extra data value is " << group[0].get_extra() << "\n";
cout << "The extra data value is " << group[3].get_extra() << "\n";
}




// Result of execution
//
// The small box area is 35
// The medium box area is 64
// The large box area is 300
// The array box area is 64
// The array box area is 110
// The array box area is 120
// The array box area is 130
// The extra data value is 1
// The extra data value is 2
// The extra data value is 3
// The extra data value is 4
// The extra data value is 5


  3 Responses to “Category : C++ Source Code
Archive   : CPPTUT.ZIP
Filename : OBJARRAY.CPP
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

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  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

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