var keyword in C#
Last Updated :
22 Jun, 2020
Keywords are the words in a language that are used for some internal process or represent some predefined actions. var is a keyword, it is used to declare an implicit type variable, that specifies the type of a variable based on initial value.
Syntax:
var variable_name = value;
Example:
Input: a = 637
b = -9721087085262
Output: value of a 637, type System.Int32
value of b -9721087085262, type System.Int64
Input: c = 120.23f
d = 150.23m
e = G
f = Geeks
Output: value of c 120.23, type System.Single
value of d 150.23, type System.Decimal
value of e G, type System.Char
value of f Geeks, type System.String
Example 1:
using System;
using System.Text;
class GFG {
static void Main( string [] args)
{
var a = 637;
var b = -9721087085262;
Console.WriteLine( "value of a {0}, type {1}" , a, a.GetType());
Console.WriteLine( "value of b {0}, type {1}" , b, b.GetType());
}
}
|
Output:
value of a 637, type System.Int32
value of b -9721087085262, type System.Int64
Example 2:
using System;
using System.Text;
namespace Test {
class GFG {
static void Main( string [] args)
{
var c = 120.23f;
var d = 150.23m;
var e = 'G' ;
var f = "Geeks" ;
Console.WriteLine( "value of c {0}, type {1}" , c, c.GetType());
Console.WriteLine( "value of d {0}, type {1}" , d, d.GetType());
Console.WriteLine( "value of e {0}, type {1}" , e, e.GetType());
Console.WriteLine( "value of f {0}, type {1}" , f, f.GetType());
Console.ReadLine();
}
}
}
|
Output:
value of c 120.23, type System.Single
value of d 150.23, type System.Decimal
value of e G, type System.Char
value of f Geeks, type System.String
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