static void Main(string[] args)
{
// Inheritance
Shape shape = new Shape();
Console.WriteLine(shape.Area());// returns 0 as it invokes the Area method inside the shape class
Rectangle rectangle = new Rectangle(15, 5);
Console.WriteLine(rectangle.Area());// returns 0 Even though rectangle does not have a method called area, it works because it inherited the method from the base class Shape. This is inheritence
// Method override at work - polymorphism
Shape x = new Shape();
Console.WriteLine(x.Area());
Square square = new Square(10);
Console.WriteLine(square.Area());// returns 100 Square's area method is invoked, override at work
// Another example of polymorphism
Shape z = new Rectangle(5, 2);
Console.WriteLine(z.Area()); // returns 10
// this works because you can supply a child instance in place of a parent. This is polymorphism
// // because area is a virtual method, at run time, CLR will realise that x is an instance of Rectangle, it will invoke the method from Rectangle class
}
static void Main(string[] args)
{
Console.WriteLine("Hello Polimorfismo!");
Console.WriteLine("Es la habilidad de presentar la misma interface de diferente forma.");
Console.WriteLine("Type Polimorfismo!");
Console.WriteLine("1. Static / Compile time");
TestData dataClass = new TestData();
int add2 = dataClass.Add(45, 34, 67);
int add1 = dataClass.Add(23, 34);
Console.WriteLine("int add2 = dataClass.Add(45, 34, 67);");
Console.WriteLine("int add1 = dataClass.Add(23, 34);");
Console.WriteLine("2. Dynamic / Runtime");
List <Shape> ShapeList = new List <Shape>();
Shape circle = new Circle();
Shape Rectangle = new Rectangle(5.3, 3.4);
Shape Square = new Square();
ShapeList.Add(circle);
ShapeList.Add(Rectangle);
ShapeList.Add(Square);
Console.WriteLine("Area:" + circle.Area());
Console.WriteLine("Area:" + Rectangle.Area());
Console.WriteLine("Area:" + Square.Area());
foreach (Shape shape in ShapeList)
{
Console.WriteLine(shape.Draw());
}
}