C# While Loop

C# While Loop

C# While Loop is used to execute a set of statements in a loop based on a condition.

Syntax of C# While

Following is the syntax of While Loop in C#.

 while(condition){
     /* statement(s) */
 }

where

• while is the keyword.
• condition is a boolean expression.
• statement(s) are a set of C# statements which will be executed in a loop.

Example 1 – C# While Loop

Following program is a simple example for while loop. The C# program prints numbers from 5 to 9.

Program.cs

using System;

namespace CSharpExamples {
    class Program {
        static void Main(string[] args) {
            int a=5;
            while(a<=9){
                Console.WriteLine(a);
                a++;
            }
        }
    }
}

Output

PS D:\workspace\csharp\HelloWorld> dotnet run
5
6
7
8
9

How does C# While Works?