//Main-----------------------------------------------------------------------------
static void Main(string[] args)
{
//Inheritance and Polymorphism
//Instantiate derived class and access its inherited public method
derivedClass d = new derivedClass(7, "Smith");
Console.WriteLine(d.Legs); //returns 4
d.Bark(); //returns Woof
d.Speak();
Console.WriteLine(derivedClass.Number);
//protected members of base class
d.SayName(); //Works because derived class SayName method has access to base class' field/var
//d.LastName = "Jones"; //error, due to "protected" protection level in base class
//Polymorphism
Shape c = new Circle();
c.Draw(); //outputs circle
Shape r = new Rectangle();
r.Draw(); //outputs rectangle
//Abstract class
abstractClass v = new abstractCircle();
v.Draw(); //circle
//Interface
IShape z = new interfaceCircle();
z.Draw(); //Outputs circle drawing
ISquash y = new interfaceCircle();
y.Squash(); //Outputs about squashing
//Namespaces
System.Console.WriteLine("Hello"); //Here, "System" would be required if "using System;" was not called at the start of the file.
}
