Object-Oriented Programming · Question 6 · Medium
What is the output of the following Java code?
class Animal {
void sound() { System.out.println("Generic"); }
}
class Dog extends Animal {
void sound() { System.out.println("Bark"); }
}
// in main:
Animal a = new Dog();
a.sound();- Bark
- Generic
- Compilation error
- Generic followed by Bark
Answer and explanation
Answer: A. Bark
Explanation: sound() is an overridden instance method, so the call is dispatched on the actual object type (Dog) at runtime, even though the reference type is Animal.
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