👉 In programming, a character string is a sequence of characters that can be used to represent text. It is often used as an alternative to strings in many programming languages and tools for input/output operations. A character string is typically enclosed within quotation marks or quotes when it is a variable, function, or other data structure. Character strings are commonly used in applications such as web development, where they can be used to represent the characters of a webpage, email addresses, URLs, or any other text that needs