Hello World Program in C#

Hello World Program in C# .Net developers. In this program we can print the hello world for .Net developers to develop system softwares. A data type is a string. A message is a variable that stores the value of a data type that has been provided. The message variable’s value is “Hello World!!.” The Control Panel. WriteLine() is a static function for printing a line of text to the console.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace main
class Program
static void Main(string[] args)
string input = "Hello World";




Hello World

Execute a Program in .Net

Every.NET program uses the using keyword to reference the necessary.NET foundation namespaces that it intends to use, for example, using System. Text. Declare the current class’s namespace with the namespace keyword, for example, namespace Main.firstprogram The class keyword was then used to declare a class: class Program. The Main() method is a class method. The console application’s entry point is the program class.

Why Do We Need Namespace in C#

In C#, namespaces are used to arrange a large number of classes so that the program can be easily managed. System is used in a basic C# program. Console is a class that belongs to the System namespace. We must use namespacename to get the class of a namespace.

Linq and Why Do We Need in C#

LINQ (Language Integrated Query) is a standard query syntax for retrieving data from many sources and formats in C# and VB.NET. It’s written in C# or Visual Basic, removing the gap between programming languages and databases while also offering a single querying interface for many data sources.