OOP – Page 11 – Sharp: NCLEX, Java & Python

Java: Object Interaction

Why do objects collaborate through method calls?

What issue arises if a `CartItem` duplicates `Product` fields?

How would you explain an instance variable in a Java interview?

How do you identify awkward interaction patterns in object designs?

What design flaw exists if a `User` class directly accesses `ShoppingCart`'s item list?

Why might a `Product` class use a getter method?

How are objects created in Java?

How do you know object collaboration is improving?

Why does a constructor in Java matter in this design?

How would you explain a common mistake to avoid when overriding methods in an interview?