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C# void Keyword with Example
In this tutorial, we will learn about the void keyword, its usage, syntax, and example in C#.
By IncludeHelp Last updated : April 04, 2023
C# void Keyword
In C#, void keyword is a reference type of data type, it is used to specify the return type of a method in C#. The void is an alias of System.Void.
Note: If there is no parameter in a C# method, void cannot be used as a parameter.
Syntax of void
public void function_name([parameters])
{
//body of the function
}
Example of void keyword in C#
using System;
using System.Text;
namespace Test {
class Example {
public void printText() {
Console.WriteLine("Hello world!");
}
public void sum(int a, int b) {
Console.WriteLine("sum = " + (a + b));
}
};
class Program {
static void Main(string[] args) {
//calling functions
Example ex = new Example();
ex.printText();
ex.sum(10, 20);
//hit ENTER to exit
Console.ReadLine();
}
}
}
Output
Hello world!
sum = 30
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