static void Main(string[] args)
{
Circulo C1 = new Circulo();
C1.Radio = 5;
C1.DatosCirculo();
//Otra forma: Upcasting
Figura1 f1 = new Circulo {
Radio = 5
};
f1.CalcularArea();
Figura1 f2 = new Triangulo {
Base = 10, Altura = 9
};
Figura1 f3 = new Rectangulo {
Base = 10, Altura = 9
};
Figura1[] figuras = new Figura1[] { f1, f2, f3, C1 };
foreach (var figura in figuras)
{
Console.WriteLine(figura.CalcularArea());
}
//Downcasting
Circulo C = f1 as Circulo;
//C.Radio = 5;
Console.WriteLine("Datos del circulos");
C.DatosCirculo();
Console.ReadKey();
}
private void button1_Click(object sender, EventArgs e)
{
int x = comboBox1.SelectedIndex;
Factory[] objFactories = new Factory[1];
switch (x)
{
case 0:
objFactories[0] = new Figura1();
foreach (Factory ob in objFactories)
{
FIGURAS objProduct = ob.GetFig();
objProduct.Mensaje();
}
break;
case 1:
objFactories[0] = new Figura2();
foreach (Factory ob in objFactories)
{
FIGURAS objProduct = ob.GetFig();
objProduct.Mensaje();
}
break;
case 2:
objFactories[0] = new Figura3();
foreach (Factory ob in objFactories)
{
FIGURAS objProduct = ob.GetFig();
objProduct.Mensaje();
}
break;
default:
{
MessageBox.Show("***");
break;
}
}
}
