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Concatenation in programming languages

Concatenation is the process of combining or joining two or more strings, text fragments, or variables together into a single string. It is a common operation in programming and text processing, allowing the creation of longer strings by merging shorter ones.

In programming languages, concatenation is typically performed using a concatenation operator or function. The specific syntax may vary depending on the programming language, but the concept remains the same. When concatenating strings, the original strings are preserved, and a new string is created, which contains the combined contents of the original strings.

For example, in many programming languages, the “+” operator is commonly used for string concatenation. Consider the following example in Python:

first_name = “John”
last_name = “Doe”
full_name = first_name + ” “ + last_name

In this example, the variables first_name and last_name store strings. The concatenation operation combines these strings using the “+” operator and adds a space in between. The resulting string is assigned to the full_name variable, which is then printed, resulting in the output “John Doe.”

Concatenation is not limited to just two strings; it can involve multiple strings or a combination of strings and other data types. It is a flexible and essential operation when working with text manipulation, building dynamic messages, constructing file paths, or generating output.

It’s important to note that concatenation is different from addition when it comes to numerical data types. In the context of strings, concatenation merges the content, while addition performs arithmetic operations. The concatenation operator may be overloaded to handle different data types, allowing for concatenation of strings with other data types, such as numbers.

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