What is mean by method overloading and method overriding? And what is the difference between them?

Method Overloading: Method overloading allows programmers to use the same name for multiple methods. Methods are differentiated with their number and type of parameters. Method overloading is an example of compile-time polymorphism.

For Example:

class Car

{

        public void Print()

        {

            Console.WriteLine("Without Parameter");

        }

        public void Print(int type)

        {

            Console.WriteLine("With Parameter");

        }

}

class Program

{

        static void Main(string[] args)

        {

            Car car = new Car();

            car.Print();

            car.Print(1);

            Console.ReadKey();

        }

                }

              

             //Output:

               Without Parameter

               With Parameter

 

There are different scenarios related to method overloading, which we will see in the output section of this ebook.

 

Method Overriding: Method overriding allows programmers to create base classes methods override in derived classes with the same and same signature. It is a run time polymorphism. Virtual and override keywords are used for the method overriding.

 

 class Vehicles

 {

        public virtual void Print()

        {

            Console.WriteLine("Base Class");

        }

 }

 class Car: Vehicles

 {

        public override void Print()

        {

            Console.WriteLine("Derived Class");

        }

 }

 class Program

 {

        static void Main(string[] args)

        {

            Vehicles vehicle = new Car();

            vehicle.Print();

            Car car = new Car();

            car.Print();

            Vehicles vehicles = new Vehicles();

            vehicles.Print();

            Console.ReadKey();

        }

               }

 

             //Output :

               Derived Class

               Derived Class

               Base Class

            

             Difference between method overloading and method overriding:

Method Overloading	Method Overriding
Creating a new method with the same name and different signature in the same class is called method overloading.	Creating a new method with the same name and signature in the derived class same as the base class is called method overriding.
It is called a compile-time polymorphism.	It is called Run-time polymorphism.
Access modifier can be any.	The access modifier is public only.
Method overloading doesn’t need an inheritance	Method overriding needs inheritance.