Page 308 - Computer_Science_F5

void display () {
cout << “accountHolder: “ << accountHolderName << “, Balance: TZS”
<< balance << endl;
} Chapter Four: Object oriented programming with C++
FOR ONLINE READING ONLY
};
int main () {
// Create an object of BankAccount class
BankAccount account (“Mkulu Mkuvangwa”, 100000);
// Display initial account information
cout << “Initial account information:” << endl;
account.display ();
// Deposit and withdraw some money
account.deposit (20000);
account.withdraw (15000);
// Display updated account information
cout << “\nUpdated account information:” << endl;
account.display ();
return 0;
}

Output:

Figure 4.73: Output of encapsulation program

This code example demonstrates the the class itself. The member functions
concept of encapsulation, which is are declared as public, allowing them
one of the pillars of object-oriented to be accessed and called from outside
programming (OOP). The code the class. The constructor is used to
defines a class called BankAccount, initialize the object with an owner name
which encapsulates data members and initial balance. The deposit and
(accountHolder and balance) and withdraw methods modify the balance
member functions (deposit, withdraw, based on the given amount, ensuring that
and display). The data members are the balance is not negative. The display
declared as private, meaning they can method is used to print the owner’s name
only be accessed and modified within and balance.

299
Student’s Book Form Five

Computer Science Form 5.indd 299 23/07/2024 12:34