Encapsulation

Context: Encapsulation hides internal state and requires interaction through public methods/properties. It protects data integrity and reduces coupling.

Encapsulation is achieved using access modifiers (private, protected, internal, public) and properties.

public class BankAccount
{
    private decimal _balance;  // hidden

    public void Deposit(decimal amount)
    {
        if (amount > 0) _balance += amount;
    }

    public decimal GetBalance() => _balance;  // controlled access
}

Related Topics

• 4.2.1 Access modifiers
• 4.2.2 Property accessors
• 4.2.3 Auto implemented properties