C# while loop

In the previous C# tutorial, we have discussed C# for loop with examples . In this lesson, we are going to learn C# while loop. The loop is a repetitively process to execute the same code.
Let's discuss C# while loop.

C# while loop -

In the C# while loop, the statement executes repetitively as long as expression is true. In the C# for loop, we define the initial value, condition and increment value but in C# while loop, we specify the condition with while keyword inside the parenthesis.

In simple words, A while loop executes the statement until the condition is true. The compiler checks the condition first and execute the code of the block. In C# while loop, when the condition evaluates to false, compiler exit from the loop.

Syntax of C# while loop.


while (condition) 
{ 
statements to be executed; 
}

In the above syntax, condition to be created first and execute the block of statements as long as the condition is true.

Example of C# while loop -
Let's create an example to print the year with while loop using C# programming.


using System;

namespace whileLoop{

   public class Program {
   
      public static void Main(string[] args) {
		  int i=2021; 
		  while (i>1994){
			  
          i--;
			  Console.WriteLine(i);
		  }
		 
         Console.ReadLine();
      }
   
   }
}

Output -

In the above example, we declared a variable with its value. We created a condition and decrement the value using -- decrement operator in C#. First of all, the compiler checks the condition first and execute the block of code.

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