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  1. Prepare
  2. C++
  3. Classes
  4. Virtual Functions
  5. Discussions

Virtual Functions

  • azzam_emirates
     + 0 comments

    This works well on me as an intermediate C++ Programmer with Java basic programming language. The keyword "virtual" is very important.

    int profCount = 0;
int studentCount = 0;

class Person {
    protected:
    string name;
    int age;
    int id;
    
    public:
    virtual void getdata() {}
    virtual void putdata() {}   
    
};

class Professor : public Person {
    protected:
    int publications;
    
    public:   
    void getdata() {        
        cin >> this -> name;
        cin >> this -> age;
        cin >> this -> publications;
        profCount++;
        this -> id = profCount;
    } 
    
    void putdata() {
        cout << this -> name << " ";
        cout << this -> age << " ";
        cout << this -> publications << " ";
        cout << this -> id << endl;
    }   
    
};

class Student : public Person {
    protected:
    int score;
    
    public:   
    void getdata() {        
        cin >> this -> name;
        cin >> this -> age;
        int a, b, c, d, e, f;
        cin >> a >> b >> c >> d >> e >> f;         
        this -> score = a + b + c + d + e + f;
        studentCount++;
        this -> id = studentCount;
    }
    
    void putdata() {
        cout << this -> name << " ";
        cout << this -> age << " ";
        cout << this -> score << " ";
        cout << this -> id << endl;
    }
        
};