static variable advantage

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i just sending after i was done the a code ,

what is advantage of static variable.

we can call instead of creating the object only,or anyother ?

regards
James

Posted 30-May-12 9:40am

jameschowdaree

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Ali_100 31-May-12 1:29am

I want to ask that ,is it necessary that to use static variable in class we must use static constructor to initialize?

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CPallini · Answer 1 · 2012-05-30T09:47:00

Usually we don't call a variable. However, roughly speaking, yes, actually we can access a (public) static variable without creating an instance of its class.
static members should contain class attributes, that is data shared by all the instances of the class (none is all when no object is created).

Maciej Los · Answer 2 · 2012-05-30T11:33:00

In addition of CPalini's answer, C# defines seven categories of variables, among other things, static variables.
Have a look here:
Variable categories (C#)[^]
Static variables (C#)[^]

But i think, you want to know about static modifier (keyword). If yes, see here:
static (C# Reference)[^]

Use the static modifier to declare a static member, which belongs to the type itself rather than to a specific object. The static modifier can be used with classes, fields, methods, properties, operators, events, and constructors, but it cannot be used with indexers, destructors, or types other than classes.

Joshi, Rushikesh · Answer 3 · 2012-05-30T09:52:00

Solution 2

Static variables are also improving performance as they are getting stores into a separate heap, a separate heap from Garbage Collector heap, which is referring as "high frequency heap". Refer Static Keyword Demystified[^].

Also variables can be defined without taking additional memory.

Static variables resolved good designing changeless like Singleton implementation.

Just Google it you will get lot more information about it.

Thanks
Rushi

Posted 30-May-12 9:52am

Joshi, Rushikesh

Updated 30-May-12 11:00am

v2

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Sergey Alexandrovich Kryukov 30-May-12 16:00pm

Poor lie. Why would you answer on things you have no idea about?!
Static variables cannot be "on top of heap", they have nothing to do with heap!
All variables always use some memory. How else?!
They are dangerous in many aspects. Their use is justified only where they are absolutely needed. Yes, like singleton, but the well-designed singleton does not use only static members.

I voted 1. More importantly, make sure you are very well familiar with the matter: confusing the inquirer make cost her/him too much of lost time, so not giving any advice is much better then giving a wrong answer.

--SA

Joshi, Rushikesh 30-May-12 16:54pm

Thanks for updating me.

Joshi, Rushikesh 30-May-12 17:01pm

SA, my wordings were confusing but my intention was right. I corrected my Answer with additional changes.

static variable advantage

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