Abstract Class Example

CSharp · Console

/Program.cs

using System;

public class Program
{
  abstract class Shape {
    public abstract void Draw();
  }

  class Circle : Shape {
    public override void Draw() {
      // draw a circle!
      Console.WriteLine("Imagine a circle is drawn");
    }
  }

  class Rectangle : Shape {
    public override void Draw() {
      // draw a rectangle!
      Console.WriteLine("Imagine a rectangle is drawn");
    }
  }

  public static void Main() {
    Shape c = new Circle();
    c.Draw();
    // Imagine a circle is drawn
  }
}