Topic Preview • Enroll to Read Full Lesson
6.3 Encapsulation: Access Modifiers, Invariants & Data Hiding
Topic Summary
Protect sensitive object state from external tampering using private fields and validate business rules in getters and setters.
What You Will Learn
• Apply the 4 access modifiers: private, default, protected, public.
• Implement defensive getters and setters with validation rules.
• Maintain class invariants to prevent corrupted application state.
Included in Java Fundamentals & Object-Oriented Programming • Lifetime access for ₹49