Additional Notes
Why does setting a reference to null matter in practice?
Track: Java
Topic: OOP
Focus: Object References
Java: Object References
Answer
Setting a reference to null removes its connection to the object, making it eligible for garbage collection.
When a reference is set to null, it no longer points to any object. In a store model, if a CartItem's Product reference is set to null, the CartItem cannot interact with that Product until reassigned.
When a reference is set to null, it no longer points to any object. In a store model, if a CartItem's Product reference is set to null, the CartItem cannot interact with that Product until reassigned.
Topics: Java Object References OOP