Additional Notes
Can immutable classes have mutable fields?
Track: Java
Topic: OOP
Focus: Immutability Basics
Java: Immutability Basics
Answer
No, it would break immutability. Frame the concept in practical terms so you can explain it during interview discussion.
Having mutable fields in an immutable class means the object's state can change, which contradicts immutability. All fields should be final and initialized via constructors to ensure the object remains constant.
Having mutable fields in an immutable class means the object's state can change, which contradicts immutability. All fields should be final and initialized via constructors to ensure the object remains constant.
Topics: Immutability Basics Java OOP