Loops in C#: For, While, Do..While Loops

Learn how for, while, and do-while loops work in C#, with clear examples showing when to use each type of loop.

Why Loops Matter

Loops allow a block of code to be executed repeatedly, saving you from writing the same instructions over and over and forming a core part of nearly every non-trivial program.

The for Loop

The for loop is ideal when you know in advance how many times you want to repeat an action, combining initialization, a condition, and an increment step all in a single, compact line.

The while Loop

The while loop checks its condition before each iteration and continues running as long as that condition remains true, making it well suited for situations where the number of iterations isn't known ahead of time.

The do-while Loop

The do-while loop is similar to while, but it checks the condition after executing the loop body, guaranteeing the code runs at least once, which is useful for scenarios like input validation.