Getters & Setters in Java

Purpose: Getters (getXxx()) → Read private fields. Setters (setXxx()) → Modify private fields (with optional validation). Example: class Student { private String name; // Getter public String getName() { return name; } // Setter public void setName(String name) { if (name != null) { this.name = name; } } } Why Use Them? ✔ Encapsulation (hide internal data) ✔ Control access (add validation/logic) ✔ Flexibility (change internals later) Lombok Shortcut: @Getter @Setter class Employee { private int id; } (Auto-generates getId() and setId()) Key Rule: → Always use private fields + public getters/setters for secure OOP design.

May 2, 2025 - 07:34

Purpose:

Getters (getXxx()) → Read private fields.
Setters (setXxx()) → Modify private fields (with optional validation).

Example:

class Student {
    private String name;

    // Getter
    public String getName() {
        return name;
    }

    // Setter
    public void setName(String name) {
        if (name != null) {
            this.name = name;
        }
    }
}

Why Use Them?

✔ Encapsulation (hide internal data)

✔ Control access (add validation/logic)

✔ Flexibility (change internals later)

Lombok Shortcut:

@Getter @Setter 
class Employee {
    private int id;
}

(Auto-generates getId() and setId())

Key Rule:

→ Always use private fields + public getters/setters for secure OOP design.