Category : C++ Source Code
Archive : CPPTUT.ZIP
Filename : INHERIT6.CPP
Output of file : INHERIT6.CPP contained in archive : CPPTUT.ZIP
#include
class vehicle {
protected:
int wheels;
float weight;
public:
vehicle(void) {wheels = 7; weight = 11111.0;}
void initialize(int in_wheels, float in_weight);
int get_wheels(void) {return wheels;}
float get_weight(void) {return weight;}
float wheel_loading(void) {return weight/wheels;}
};
class car : public vehicle {
int passenger_load;
public:
car(void) {passenger_load = 4;}
void initialize(int in_wheels, float in_weight, int people = 4);
int passengers(void) {return passenger_load;}
};
class truck : public vehicle {
int passenger_load;
float payload;
public:
truck(void) {passenger_load = 3; payload = 22222.0;}
void init_truck(int how_many = 2, float max_load = 24000.0);
float efficiency(void);
int passengers(void) {return passenger_load;}
};
main()
{
vehicle unicycle;
// unicycle.initialize(1, 12.5);
cout << "The unicycle has " <<
unicycle.get_wheels() << " wheel.\n";
cout << "The unicycle's wheel loading is " <<
unicycle.wheel_loading() << " pounds on the single tire.\n";
cout << "The unicycle weighs " <<
unicycle.get_weight() << " pounds.\n\n";
car sedan;
// sedan.initialize(4, 3500.0, 5);
cout << "The sedan carries " << sedan.passengers() <<
" passengers.\n";
cout << "The sedan weighs " << sedan.get_weight() << " pounds.\n";
cout << "The sedan's wheel loading is " <<
sedan.wheel_loading() << " pounds per tire.\n\n";
truck semi;
// semi.initialize(18, 12500.0);
// semi.init_truck(1, 33675.0);
cout << "The semi weighs " << semi.get_weight() << " pounds.\n";
cout << "The semi's efficiency is " <<
100.0 * semi.efficiency() << " percent.\n";
}
// initialize to any data desired
void
vehicle::initialize(int in_wheels, float in_weight)
{
wheels = in_wheels;
weight = in_weight;
}
void
car::initialize(int in_wheels, float in_weight, int people)
{
passenger_load = people;
wheels = in_wheels;
weight = in_weight;
}
void
truck::init_truck(int how_many, float max_load)
{
passenger_load = how_many;
payload = max_load;
}
float
truck::efficiency(void)
{
return payload / (payload + weight);
}
// Result of execution
//
// The unicycle has 7 wheel.
// The unicycle's wheel loading is 1587.285767 pounds on the single tire.
// The unicycle weighs 11111 pounds.
//
// The sedan carries 4 passengers.
// The sedan weighs 11111 pounds.
// The sedan's wheel loading is 1587.285767 pounds per tire.
//
// The semi weighs 11111 pounds.
// The semi's efficiency is 66.666667 percent.
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/