Same chapter3 marksDifficulty: Medium
What is an abstract class, and how does it differ from an interface in Java?
Inheritance and Polymorphism
3 marksDifficulty: Medium
What is dynamic method dispatch, and why is it useful?
Original Khojo Papers practice question — not from a past board paper.
Answer
Dynamic method dispatch is the mechanism by which a call to an overridden method is resolved at run time according to the actual type of the object rather than the declared type of the reference. It is useful because it lets a single reference of a superclass type work with objects of any subclass, so code written against the superclass keeps working when new subclasses are added.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
This is the basis of run-time polymorphism in Java.
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