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void keyword in C#

C# void keyword: Here, we are going to learn about the void keyword in C#, what is void keyword, how to use it n C#?
Submitted by IncludeHelp, on March 07, 2019

C# void keyword

In C#, void is a keyword. a void is a reference type of data type, it is used to specify the return type of a method in C#.

void keyword is an alias of System.Void.

Note: If there is no parameter in a C# method, void cannot be used as a parameter.

Syntax:

public void function_name([parameters])
{
	//body of the function
}

C# code to demonstrate example of void keyword

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