What is parameters meaning?

In computer programming, a parameter is a variable that is used to pass information into a function, subroutine, or method. The value of a parameter is set when the function is called, and is used by the function to perform its operations.

Parameters can be required or optional, and can be of different data types such as integers, strings, arrays, or objects. They can also be passed by value or by reference, which determines whether changes made to the parameter inside the function are reflected outside of it.

The name of a parameter is typically defined within the function or method declaration, and is used to refer to the value of the parameter within the function's code. Specific rules may apply to naming conventions, such as whether underscores, capitalization, or other characters are allowed.

Understanding how to use parameters correctly is essential for writing effective and reusable code in many programming languages, including C++, Python, and Java. By passing data, values, or objects into and out of functions, developers can create more complex and adaptable programs.