String handling refers to the methods and techniques used to manipulate and process sequences of characters, known as strings. This includes operations such as creating, modifying, searching, and formatting strings. Programming languages like Python, Java, and C++ provide built-in functions and libraries to facilitate these tasks, making it easier for developers to work with text data. Common string handling operations include concatenation, which combines two or more strings, and substring extraction, which retrieves a portion of a string. Additionally, string handling often involves searching for specific characters or patterns within a string, as well as converting strings to different formats, such as changing case or trimming whitespace.