Inheritance — Animal and Dog — C# Programming

Problem

Create base class Animal with Speak() and override in Dog.

Hints

override Speak in Dog

Your practice code

Ready — edit the code above and click Run.

Solution

using System;

class Animal { public virtual void Speak() => Console.WriteLine("Some sound"); }
class Dog : Animal { public override void Speak() => Console.WriteLine("Bark"); }
class Program { static void Main() { new Dog().Speak(); } }

Try solving on your own first, then reveal the official answer.

Explanation

virtual/override enable polymorphism—core OOP interview concept.