C# Academy · Lesson

Iterating Over Strings

Strings as char sequences.

Strings Are Sequences

A string is a sequence of char values in order.

This means you can loop over a string and look at one character at a time. Iterating is how you inspect, count, or transform the characters in text.

string text = "Hello";
// 'H', 'e', 'l', 'l', 'o'

Every string has a Length property that tells you how many characters it holds.

You will use Length to control loops and to know the last valid index, which is always Length - 1.

class Program
{
    static void Main()
    {
        string text = "Hello";
        System.Console.WriteLine(text.Length);
    }
}