Ch 11: Relational Data Model

class BankAccount {
private:
    double balance; // Hidden attribute
public:
    double getBalance() { return balance; }
};

class Student {
public:
    int stId;
    string stName;
    void display();
};

class Employee {
private:
    double salary; // Hidden attribute
public:
    double getSalary() { return salary; } // Controlled access
};

class Student {
public:
    string name; // Attribute
    int age;     // Attribute
};