# Understanding the String Class

A C# string is a read-only sequence of characters; read them by index, write special characters with escape sequences, and understand why strings never change.

![Cheat sheet: Understanding the String Class](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/11/8fc6a77880a84123aac3ab750037c912.webp)

- Category: C#
- Level: Novice
- Tags: char (c-sharp), c-sharp, Escape Sequence (c-sharp), string (c-sharp), String Immutability (c-sharp), String Index (c-sharp), Verbatim String
- Updated: November 3, 2026

Source: https://www.ask-codey.com/cheat-sheets/strings-in-csharp-understanding-the-string-class-cheat-sheet