Additional Notes
What’s the difference between reference and copied data?
Track: Java
Topic: OOP
Focus: Object References
Java: Object References
Answer
References point to the same object, while copied data is a separate instance.
When you assign one object reference to another, both references point to the same object. Changes via one reference affect the other. For instance, if two `CartItem` objects reference the same `Product`, updating the product's price through one `CartItem` affects the other. In contrast, copying data creates an independent instance, so changes don't affect the original.
When you assign one object reference to another, both references point to the same object. Changes via one reference affect the other. For instance, if two `CartItem` objects reference the same `Product`, updating the product's price through one `CartItem` affects the other. In contrast, copying data creates an independent instance, so changes don't affect the original.
Topics: Java Object References OOP