Abstract methods to achieve polymorphism ___ the animals in the forest in a happy life

1. Achieve page effects

2. Create a base class or superclass (parent class)

1 namespace small animals in the forest in a happy life 2 {3     Public Abstract  class Animal// Animal class 4    {5public          Abstractvoid Movement (); // How to exercise 6     }7 }

3. Create a derived class (Roe Class)

namespace small animals in the forest in a happy life {    public class// derived class derived from base class     {          Publicoverridevoid Movement ()/// Parent class method         {            Console.WriteLine (" fish swim in the water! ") " );        }    }}

4. Create a derived class (dog subclass)

1 namespacesmall animals in the forest in a happy life2 {3      Public classDog:animal4     {5          Public Override voidMovement ()6         {7Console.WriteLine ("the dog is running on the ground!");8         }9     }Ten}

5. Create a derived class (bird subclass omitted)

6.Main method

1 namespacesmall animals in the forest in a happy life2 {3     class Program4     {5         Static voidMain (string[] args)6         {7Console.WriteLine ("small animals in the forest in a happy life!");8 Console.WriteLine ();9Animal father =NewBird ();TenAnimal Father2 =NewDog (); OneAnimal Father3 =NewFish (); A Father3. Movement (); - Father2. Movement (); - father. Movement (); the console.readline (); -         } -     } -}

Abstract methods to achieve polymorphism ___ the animals in the forest in a happy life