Additional Notes
Why can all public fields in a class become a problem in practice?
Track: Java
Topic: OOP
Focus: Fields and State
Java: Fields and State
Answer
Lack of control over field modifications. Frame the concept in practical terms so you can explain it during interview discussion.
Public fields can be freely accessed and modified from outside the class, leading to a lack of control over an object's state. This can cause inconsistencies and bugs. For example, if a CartItem's quantity is public, external code might set it to an invalid negative number.
Public fields can be freely accessed and modified from outside the class, leading to a lack of control over an object's state. This can cause inconsistencies and bugs. For example, if a CartItem's quantity is public, external code might set it to an invalid negative number.
Topics: Fields and State Java OOP