OOP – Page 15 – Sharp: NCLEX, Java & Python

Java: Invariants and Validation

How can method validation prevent invalid states in Java objects?

How do you ensure an object's state is always valid?

How does encapsulation promote object responsibility?

Why use private fields in Java classes?

How does immutability maintain invariants?

Why can not enforcing invariants become a real problem?

How does method validation reinforce encapsulation?

Why are constructor validations important?

What are the trade-offs of using immutable objects?

Why is input validation crucial in setters?