Monday, January 08, 2007

* CSharp Tip #1 : Static Classes

In .NET Framework 1.x, Static Classes are created by defining a class with a private constructor with one or more static members so that instance of the class cannot be created using new operator.

In .NET Framework 2.0 the need for such a private constructor is avoided by using a static keyword along with the class definition. Static classes are sealed and therefore cannot be inherited. Static classes cannot contain a constructor, although it is still possible to declare a static constructor to assign initial values.

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

namespace VikasGoyal.StaticClasses
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine(StaticClass.getName());
Console.WriteLine(StaticClass.getName());
Console.WriteLine(StaticClass.getName());
}
}
static class StaticClass
{
private static string name;
static StaticClass()
{
name = "Vikas Goyal";
Console.WriteLine("In Constructor");
}
public static string getName()
{
return name;
}
}
}
OUTPUT
In Constructor
Vikas Goyal
Vikas Goyal
Vikas Goyal
 


No comments:

Post a Comment