Additional Notes
Why might a ClassCastException occur with upcasting?
Track: Java
Topic: Core Java
Focus: Upcasting and Dynamic Dispatch
Java: Upcasting and Dynamic Dispatch
Answer
ClassCastException occurs if the actual object type doesn't match the cast.
When you try to cast an object to a subclass type that it doesn’t actually belong to, a `ClassCastException` is thrown. For instance, casting a `Product` reference pointing to a `Book` object as `Electronics` will fail because the object isn’t an instance of `Electronics`.
When you try to cast an object to a subclass type that it doesn’t actually belong to, a `ClassCastException` is thrown. For instance, casting a `Product` reference pointing to a `Book` object as `Electronics` will fail because the object isn’t an instance of `Electronics`.
Topics: Core Java Java Upcasting and Dynamic Dispatch