Additional Notes
What happens if you call a method not defined in a superclass?
Track: Java
Topic: Core Java
Focus: Upcasting and Dynamic Dispatch
Java: Upcasting and Dynamic Dispatch
Answer
A compile-time error occurs. Frame the concept in practical terms so you can explain it during interview discussion.
If you try to call a method on a reference type that isn't defined in the superclass, the Java compiler will flag an error. For example, if `Product` doesn't have a `readSample()` method, `Product p = new Book(); p.readSample();` will fail to compile.
If you try to call a method on a reference type that isn't defined in the superclass, the Java compiler will flag an error. For example, if `Product` doesn't have a `readSample()` method, `Product p = new Book(); p.readSample();` will fail to compile.
Topics: Core Java Java Upcasting and Dynamic Dispatch