Master C# Programming From Scratch

Loops

What is Loops

Types of Loops in C#

Loops are mainly divided into following types:

• For Loop

  For Loop in C# is a control flow statement that allows us to repeatedly execute a block of code a specified number of times. The For Loop in C# is used when we know the exact number iterations. It contain three stages i.e. initialization, condition and increment or decrement operation.

  

  syntax

  Static Code Layout Reference

  for (initialization; condition; iterator)
  {
     // Code to be executed
  }
  

  • Initialization: Runs only once when the loop begins. This is typically where you declare and set your loop counter variable.

  • Condition: A Boolean expression evaluated before every iteration. If true, the loop body runs; if false, the loop terminates.

  • Iterator: Executes at the end of every loop iteration, usually incrementing or decrementing the counter variable.

  syntax

  Code Examples

  1. Basic Incrementing Loop (Counting Up)

     Write a program to print 1 to 10 numbers

     Static Code Layout Reference

     for (int i = 0; i < 5; i++)
     {
       Console.WriteLine(i);
     }
     // Output: 0, 1, 2, 3, 4
     

  2. Decrementing Loop (Counting Down)

     Write a program to print 1 to 10 numbers

     Static Code Layout Reference

     for (int i = 0; i < 5; i++)
     {
       Console.WriteLine(i);
     }
     // Output: 0, 1, 2, 3, 4