Page 310 - Computer_Science_F5

float fuelConsumption;
public:
void setMileage(int m) {
mileage = m; Chapter Four: Object oriented programming with C++
FOR ONLINE READING ONLY
}
};
In the context of this example, abstraction can be achieved by using private members
to hide certain details of the car’s internal workings. The private attributes, such as
the engine type or fuel consumption, are not directly accessible or modifiable from
outside the class. Instead, they can only be accessed and modified through public
(set and get) methods or functions provided by the car class.

Implementing abstraction in C++

Program Example 4.45:

Code program to demonstrate abstraction in C++

#include <iostream>
using namespace std;
class demoAbstraction {
private:
int a, b;
public:
//This method will set values of private members
void set(int x, int y)
{
a = x;
b = y;
}
void display()
{
cout << “a = “ << a << endl;
cout << “b = “ << b << endl;
}
};
int main()
{
demoAbstraction obj;
obj.set(103, 230);
obj.display();
return 0;
}

301
Student’s Book Form Five

Computer Science Form 5.indd 301 23/07/2024 12:34