OOP – Page 29 – Sharp: NCLEX, Java & Python

Java: Fields and State

Why can weak field modeling lead to design issues?

How do you decide where a field belongs?

Why should fields in a Java class typically be private?

How does state affect object behavior in Java?

What are the consequences of poor field design in Java?

What distinguishes fields from local variables in Java?

Why might a CartItem class include a Product field?

Why can all public fields in a class become a problem in practice?

How would you explain the 'this' keyword used for in a Java interview?

How can you safely allow access to a list of orders in a system?