Use the override modifier to modify a method, a property, an indexer, or an event.
u cannot override a non-virtual or static method. The overridden base method must be virtual, abstract, or override.
// cs_override_keyword.cs
// Calling overriden methods from the base class
using System;
class TestClass
{
public class Square
{
public double x;
// Constructor:
public Square(double x)
{
this.x = x;
}
public virtual double Area()
{
return x*x;
}
}
class Cube: Square
{
// Constructor:
public Cube(double x): base(x)
{
}
// Calling the Area base method:
public override double Area()
{
return (6*(base.Area()));
}
}
public static void Main()
{
double x = 5.2;
Square s = new Square(x);
Square c = new Cube(x);
Console.WriteLine("Area of Square = {0:F2}", s.Area());
Console.WriteLine("Area of Cube = {0:F2}", c.Area());
}
}
Output
Area of Square = 27.04
Area of Cube = 162.24
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