How method overriding different from overloading?

Overriding different from Overloading:

If we are overriding the method, derived class method behaviour is changed from the base class. In Overloading, method with same name by different signature is used.

Example:

      
      public class ParentClass

      {

            public virtual void Display()

            {

                Console.WriteLine("ParentClass");

            }

        }

        public class ChildClass : ParentClass

        {

            //Example for method override

            public override void Display()

            {

                Console.WriteLine("ChildClass");

            }

            //Example for method overload

            public void Display(string name)

            {

                Console.WriteLine(name);

            }

            //Example for method overload

            public void Display(string name, string country)

            {

            Console.WriteLine("Name:"+name +"Country: "+ country );

            }

        }

ParentClass p = new ParentClass();

ChildClass c = new ChildClass();

ParentClass pc = new ChildClass();

p.Display();

c.Display();

pc.Display();

 

OutPut:

ParentClass

ChildClass

ChildClass