Core Java · interview question
Given the following code, what concept does it best illustrate?
Multiple choiceHardchapter-5-curatedpremiumcore-javacode-reading-with-related-types
class Animal { void speak() { System.out.println("Animal speaks"); } } class Dog extends Animal { @Override void speak() { System.out.println("Dog barks"); } } public class Main { public static void main(String[] args) { Animal animal = new Dog(); animal.speak(); } }Answer and explanation
Correct answer
A. Polymorphism
Why
The code demonstrates polymorphism, where a reference of type 'Animal' points to an object of type 'Dog', allowing the method call to resolve to the overridden method in 'Dog'.
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