Java – Page 117 – Sharp: NCLEX, Java & Python

Java: Inheritance Basics

When should composition be preferred over inheritance?

Why does interfaces in polymorphism matter in this design?

How can the 'is-a' relationship influence class design in Java?

What are some pitfalls of subclassing in Java?

Why put behavior like `lineTotal()` on `CartItem`?

How would you explain a pitfall of returning mutable objects from immutable classes in an interview?

How does immutability reduce mutation bugs?

What role do constructor parameters play in immutability?

Can immutable classes have mutable fields?

Why do teams use 'final' with fields in Java in production code?