Core Java – Page 40 – Sharp: NCLEX, Java & Python

Java: Code Reading and State Safety

Why is using setters cautiously important?

Why does private fields in a class matter in practice?

What issues arise from compile-safe but runtime-unsafe designs?

How would you explain a common mistake when refactoring procedural scripts into objects in an interview?

How would you explain an invariant in object design in an interview?

Why is it a problem if a class has many public fields?

How can immutability enhance object safety?

How does encapsulation benefit an e-commerce class design?

Why is using private fields in Java classes important?

What are the risks of setter-heavy designs?