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Technotools
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Technotools (Chestnut CD-ROM)(1993).ISO
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lang_c
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cpptut22
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virtual4.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 10 - Program 4
#include <iostream.h>
class vehicle {
int wheels;
float weight;
public:
virtual void message(void) { cout << "Vehicle message\n";}
};
class car : public vehicle {
int passenger_load;
public:
void message(void) { cout << "Car message\n";}
};
class truck : public vehicle {
int passenger_load;
float payload;
public:
int passengers(void) {return passenger_load;}
};
class boat : public vehicle {
int passenger_load;
public:
int passengers(void) {return passenger_load;}
void message(void) { cout << "Boat message\n";}
};
main()
{
vehicle *unicycle;
car *sedan;
truck *semi;
boat *sailboat;
unicycle = new vehicle;
unicycle->message();
sedan = new car;
sedan->message();
semi = new truck;
semi->message();
sailboat = new boat;
sailboat->message();
}
// Result of execution
//
// Vehicle message
// Car message
// Vehicle message
// Boat message