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Beginning C# programming with Hello World
The following is a simple “Hello World” program in C# programming −
Example
using System;
namespace MyHelloWorldApplication {
class MyDemoClass {
static void Main(string[] args) {
// display text
Console.WriteLine("Hello World");
// display another text
Console.WriteLine("Welcome!");
Console.ReadKey();
}
}
}Output
Hello World Welcome!
Let us see now what all it includes −
- using System − the using keyword is used to include the System namespace in the program.
- namespace declaration − A namespace is a collection of classes. The MyHelloWorldApplication namespace contains the class HelloWorld.
- The class MyDemoClass contains the data and method definitions that your program uses. Classes generally contain multiple methods.
- The Main method is the entry point for all C# programs. The Main method states what the class does when executed.
- The Main method specifies its behavior with the statement Console.WriteLine("Hello World");
- WriteLine is a method of the Console class defined in the System namespace. This statement causes the message "Hello, World!" to be displayed on the screen. Add more text using the same Console.WriteLine(); in C#.
- Console.ReadKey(); It makes the program wait for a key press and it prevents the screen from running and closing quickly when the program is launched from Visual Studio .NET.
Updated on: 19-Jun-2020
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