what is the use of static keyword?

Gantasala Venkatanarayanamurth

what is the use of static keyword and why we are writing only static word in main method["static void main [string[] args"]?

3 Replies

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Raja T10y ago
Hi Gantasala,

The static keyword is used to specify a static member, which means static members are common to all the objects.

This keyword 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.

Finally i understand the static variable.....static variable shared the value of it among all instances of the class.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication2
{
class Program
{
static int a; // initialized at the time of declaration
public static int Hello()
{
a = 20;
return a;
}
}
class run
{
static void Main(string[] args)
{
//Program p = new Program();
Console.WriteLine(Program.Hello());
}
}
}
Output

20

More details checkout below links

http://www.c-sharpcorner.com/UploadFile/rohatash/const-readonly-and-static-keywords-in-C-Sharp/

http://www.c-sharpcorner.com/Blogs/13039/static-keyword-in-C-Sharp.aspx

https://msdn.microsoft.com/en-in/library/98f28cdx.aspx
Ravi Patel10y ago
Hi,
static keyword not only used in main method but The static keyword can be used in 3 scenarios:

static variables
static methods
static blocks of code.
for more details check following link
http://www.dotnetperls.com/static
http://crunchify.com/java-static-methods-variables-static-block-and-class-with-example/
Jignesh Trivedi10y ago
Main method is the necessary entry point for any "Executable" and it must be Static because that is required in order to access the method without having an instance of the object to address. In order to invoke the method from outside the application, a static method is required.

Please refer
https://msdn.microsoft.com/en-us/library/acy3edy3.aspx

hope this will help you.