C sharp - Method Overriding in C#

Definition:
Method overriding in C# allows a derived class to provide a new implementation of a method that is already defined in its base class.

This is used when you want to change or extend the behavior of a method inherited from a parent class.

• The base class method must be marked with the **virtual** keyword.

• The derived class must use the **override** keyword to override the method.

• It enables runtime polymorphism (method behavior decided at runtime).

 Why Use It?

To allow subclasses to define their own version of a method while maintaining the same method name and signature.

using System;

class Animal
{
    public virtual void Speak()
    {
        Console.WriteLine("The animal makes a sound.");
    }
}

class Dog : Animal
{
    public override void Speak()
    {
        Console.WriteLine("The dog barks.");
    }
}

class Program
{
    static void Main()
    {
        Animal myAnimal = new Animal();
        myAnimal.Speak(); // Output: The animal makes a sound.

        Dog myDog = new Dog();
        myDog.Speak();    // Output: The dog barks.

        Animal anotherDog = new Dog();
        anotherDog.Speak(); // Output: The dog barks. (Polymorphism)
    }
}