Implements of polymorphism in c#

Polymorphism allows to define method of a base class with different functionality but same name,in drieved class.
For example there is a base class shape,which contain the method calcarea(). we can defined a method with name clacarea in derived classes,square,rectangle and circle.The calcarea() method in the derived classes contain different functionality.
The calcarea() method in square class contains th functionality for calculating the area of a square.
Thecalcarea() method in rectangle class contained the functionality for creating the area of a rectangle.
The following code shows how to implements Polymorphism in c#.

using System;
using system.Collections.Generic;
using System.Text;

namespace CsharpPolymorphism
{

class class1
{
public void View()
{
Console.WriteLine("class1.View1()being called");
}

public virtual void View2()
{
Console.Writeline("class1.view2() being called");
}
}

class class2 : class1
{
public new void View()
{
Console.WriteLine("class.View1() being called.");
}
public override void View2()
{
Console.Writeline("class2.View2()being called");
}
}
class program
{
static void main(string[]args)
{
class obj=new class2();
obj1.View();
obj1.View2();
}
}
}